WEBDIENSTE/langgraph
1
0
Fork 0
mirror of https://github.com/langchain-ai/langgraph.git synced 2026-08-23 16:12:25 +02:00
Code Issues Packages Projects Releases Wiki Activity
6,862 Commits 322 Branches 571 Tags
e735645264cb4ca753c8fc0bbc4eff7c8cb615a4
Commit Graph
6862 Commits
This Branch
This Branch
All Branches
Author SHA1 Message Date
Sydney Runkle e735645264 style: apply ruff format fixes 2026-04-29 14:15:02 -04:00
Sydney Runkle 68f7a3acc4 test: add add_messages migration test; move all imports to module level 
- Add test_add_messages_to_delta_migration_preserves_message_history (sync
  + async) covering the primary real-world BinaryOperatorAggregate →
  DeltaChannel migration path with real Message objects and IDs
- Hoist all in-function imports to module level in test_channels.py and
  fix _delta_channel_with_type helper accordingly
- Add section headers in test_channels.py for better navigation
 2026-04-29 14:11:17 -04:00
Sydney Runkle be7101b0ff nits 2026-04-29 14:05:06 -04:00
Sydney Runkle ee5fd582b8 refactor: remove InMemorySaver.prune — out of scope for DeltaChannel PR 
prune was not previously implemented on InMemorySaver (raised
NotImplementedError); adding a DeltaChannel-aware implementation is a
follow-up concern, not required for the core feature.
 2026-04-29 14:01:41 -04:00
Sydney Runkle 9a5f844e1b refactor: remove unnecessary variable extractions from checkpoint load paths 
Revert pure-style refactors (local variable hoisting, redundant null
guards, Sequence/list annotation change) that cluttered the DeltaChannel
PR diff without any semantic change.
 2026-04-29 13:53:53 -04:00
Sydney RunkleandClaude Sonnet 4.6 c0c5479722 fix(pregel): revert unnecessary default on increment channel param 
channel: None = None -> channel: None; all call sites pass None explicitly
and the default was never needed. Restores the original signature.

Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>
 2026-04-29 13:42:46 -04:00
Sydney RunkleandClaude Sonnet 4.6 0e5d61692e refactor(channels): DeltaChannel batch reducer interface + _messages_delta_reducer 
Renames `operator` → `reducer` and flips arg order to `(reducer, typ=None)`,
matching the new batch contract: `reducer(state, list[writes]) -> state`. The
reducer receives all writes for a step in one call instead of being folded
pairwise, enabling single-pass implementations that avoid O(N²) reprocessing.

`typ` is now optional — `_is_field_channel` in `graph/state.py` always
overwrites it from the `Annotated[T, ...]` outer type, so users can write
`DeltaChannel(my_reducer)` rather than `DeltaChannel(list, my_reducer)`.

Adds `_messages_delta_reducer` to `langgraph.graph.message` (experimental):
a single-pass bulk reducer for message lists that deduplicates by ID and
handles `RemoveMessage` tombstoning without calling `add_messages`, avoiding
repeated dedup passes that `add_messages` would incur in a fold.

Also fixes the `_delta_write_futs` mypy error in `AsyncPregelLoop` by moving
the type annotation to the class body, and unignores `new_pr_desc.md` from
the repo via `.gitignore`.

Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>
 2026-04-29 12:58:49 -04:00
Sydney RunkleandClaude Sonnet 4.6 959c8c8618 fix(pregel): async write-ordering safety for DeltaChannel via _delta_write_futs 
In durability="async" mode (the default), put_writes calls are
fire-and-forget coroutines — a process crash between write submission and
checkpoint commit leaves a DELTA_SENTINEL blob with no backing writes,
causing silent data loss on replay.

AsyncPregelLoop now maintains _delta_write_futs: any write to a
DeltaChannel channel appends its asyncio.Future to this list in
accept_writes. _checkpointer_put_after_previous drains the list with
await asyncio.gather() before calling aput(), guaranteeing
checkpoint_writes are durable before the sentinel blob is committed.

The sync loop is unchanged: BackgroundExecutor.__exit__ already ensures
all background tasks complete before invoke() returns.

Also fixes DeltaChannel(list, add_messages) constructor call in
checkpoint-postgres async test (missing typ arg).

Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>
 2026-04-29 10:51:18 -04:00
Sydney RunkleandClaude Sonnet 4.6 7439ab2e5b feat(serde): DELTA_SENTINEL via msgpack ext 8; remove "delta" type tag 
DELTA_SENTINEL is now serialized as a msgpack ext code (EXT_DELTA_SENTINEL=8)
alongside _DeltaSnapshot (ext 7), keeping both sentinel types in the same
codec path. The dedicated "delta" string type tag and its special-case in
dumps_typed/loads_typed are removed — no migration needed since this is
introduced fresh.

InMemorySaver.prune() updated to deserialize blobs and check `is DELTA_SENTINEL`
rather than comparing the raw type tag string, making it codec-agnostic.

Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>
 2026-04-29 09:59:56 -04:00
Sydney RunkleandGitHub c2c1e4412d Merge branch 'main' into delta-channel-writes-based 2026-04-29 09:43:48 -04:00
Sydney RunkleandClaude Sonnet 4.6 e6e44d5512 refactor(channels): DeltaChannel takes typ as first arg, matching BinOpChannel 
Previously DeltaChannel.__init__ hardcoded typ=list and _is_field_channel
patched item.typ/item.value after construction. This mirrors BinaryOperatorAggregate:

- DeltaChannel(typ, operator, *, snapshot_frequency=None) — typ is now
  a required first argument; __init__ strips abstract/parameterized types
  to their concrete counterparts (same logic as BinaryOperatorAggregate)
- _is_field_channel reconstructs the channel via its constructor instead
  of patching typ and value externally
- copy() and from_checkpoint() use self.__class__(self.typ, self.operator, ...)
  — no post-construction attribute hacking needed
- _empty() helper removed; self.typ() is always a concrete callable
- All call sites updated: DeltaChannel(list, op), DeltaChannel(dict, op), etc.

Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>
 2026-04-29 09:42:45 -04:00
Sydney RunkleandClaude Sonnet 4.6 16c09c1bad refactor(channels): inline _clone_empty into copy and from_checkpoint 
The helper was three lines called from exactly two places — inlining
it removes indirection without adding duplication.

Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>
 2026-04-29 09:34:48 -04:00
Sydney RunkleandClaude Sonnet 4.6 a98ffc95fd fix(checkpoint-postgres): type blob_values as Sequence[tuple[bytes, bytes, bytes]] 
Replace Any with the concrete element type — each row is (key, type_tag,
blob) all as bytes — matching how _load_blobs unpacks and decodes them.

Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>
 2026-04-29 09:31:31 -04:00
Sydney RunkleandClaude Sonnet 4.6 08304d5c24 revert(_checkpoint-postgres): restore _load_blobs comprehension 
The loop refactor added no clarity — revert to the original one-liner.

Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>
 2026-04-29 09:30:33 -04:00
Sydney RunkleandClaude Sonnet 4.6 9b4bbd0649 fix(_checkpoint): remove assert, use cast for DeltaChannel narrowing 
_needs_replay already gates on isinstance(spec, DeltaChannel), so the
assert/isinstance checks inside the replay branch were unreachable.
Replace with cast(DeltaChannel, spec) for zero-cost type narrowing that
survives -O and avoids any runtime check.

Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>
 2026-04-29 09:28:13 -04:00
Sydney RunkleandClaude Sonnet 4.6 f80a18b376 fix(channels): address code review feedback on DeltaChannel 
delta.py — value consistency:
- `__init__` now starts with `value=MISSING` (was `[]`); both fresh
  construction and clones are consistently uninitialised until
  `from_checkpoint()` or `copy()` sets the real value
- `_clone_empty` drops `__new__` in favour of the normal constructor;
  `typ` and `key` are restored explicitly afterwards (`typ` may differ
  from `list` when set via Annotated injection; `key` is injected by
  the graph builder after construction)

delta.py — snapshot cadence:
- `is_snapshot_step` now guards `step > 0`; snapshots fire at steps N,
  2N, 3N, … instead of also at step 0 where `0 % N == 0` always held

_checkpoint.py — runtime guards:
- replace both `assert isinstance(spec, DeltaChannel)` with proper
  `if not isinstance: raise TypeError`; `assert` is stripped by `-O`
  and is wrong for production invariant checks

binop.py — avoid unnecessary allocation:
- `_get_overwrite`: replace `set(value.keys()) == {OVERWRITE}` with
  `len(value) == 1 and OVERWRITE in value` to avoid allocating a
  throwaway set on every call

checkpoint-postgres — typed rows:
- add `_DeltaCombinedRow(TypedDict, total=False)` documenting the nine
  columns emitted by `SELECT_DELTA_COMBINED_SQL`'s UNION ALL; change
  `_build_delta_channel_writes_history` parameter from `Sequence[Any]`
  to `Sequence[_DeltaCombinedRow]`; call sites cast the psycopg
  `DictRow` result accordingly

Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>
 2026-04-29 09:22:05 -04:00
Nick HollonandGitHub 08666353fc fix(langgraph): decouple run.output/interrupted/interrupts from ValuesTransformer (#7639) 2026-04-29 09:08:21 -04:00
Nick HollonandGitHub 5af4c5addf refactor(langgraph,prebuilt): merge EventLog into StreamChannel with optional name (#7637) 2026-04-28 18:43:51 -04:00
Sydney RunkleandClaude Sonnet 4.6 7df8b54ba5 refactor(channels): extract _operators_equal helper, deduplicate __eq__ logic 
Both BinaryOperatorAggregate and DeltaChannel had identical inline logic for
comparing operators that may be lambdas. Extract _operators_equal into
binop.py (alongside _get_overwrite) and use it in both __eq__ methods.

Also removes the duplicate _get_overwrite definition from delta.py — it was
identical to binop.py's and is now imported from there instead, along with
the now-unused OVERWRITE constant and Overwrite imports.

Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>
 2026-04-28 18:02:18 -04:00
Sydney RunkleandClaude Sonnet 4.6 5787258a63 fix(checkpoint-postgres): remove unused _DeltaSnapshot import 
Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>
 2026-04-28 17:58:49 -04:00
Sydney RunkleandClaude Sonnet 4.6 e37e68d631 fix(checkpoint): remove unused _DeltaSnapshot import 
Dropped after removing the _DeltaSnapshot special-case in the seed-terminator
logic — write-collection ordering fix handles both blob types uniformly.

Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>
 2026-04-28 17:58:46 -04:00
Sydney RunkleandClaude Sonnet 4.6 702895e484 fix(checkpoint-postgres): single-roundtrip CTE query + write-ordering fix 
Replaces the three sequential SELECT roundtrips in _get_channel_writes_history
(checkpoints, checkpoint_writes, checkpoint_blobs) with one combined
UNION ALL query tagged by a _kind discriminator column. Both sync and async
paths now do one execute + one fetchall regardless of pipeline mode.

_build_delta_channel_writes_history is updated to accept the single tagged
rows list and dispatch on _kind while building its lookup dicts; the three
old SQL constants are removed.

Also fixes write-collection ordering in _build_delta_channel_writes_history:
the seed-terminator blob check previously fired before collecting that
ancestor's writes, silently dropping the transition writes needed to
reconstruct the child's state. Writes are now collected first.

Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>
 2026-04-28 17:55:29 -04:00
Sydney RunkleandClaude Sonnet 4.6 f879e49a96 fix(checkpoint): diamond pattern replaces ContextVar re-entrancy guard 
Adds _get_tuple_raw / _aget_tuple_raw as the pure-storage-read layer that
_get_channel_writes_history calls instead of get_tuple. Default
implementation delegates to get_tuple for full backward compatibility — no
changes needed for existing savers whose get_tuple is a plain storage query.

Savers that perform channel hydration inside get_tuple can override
_get_tuple_raw with the raw read to structurally break any possible cycle;
a Python RecursionError surfaces the problem if they don't, rather than the
previous silent data corruption (returning empty writes).

Also fixes write-collection ordering in the reference implementation: pending
writes from the seed-terminator ancestor were silently dropped because the
terminator check fired before the collection loop. Writes are now collected
first so the seed ancestor's transition writes are included in reconstruction.

Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>
 2026-04-28 17:54:58 -04:00
Sydney RunkleandClaude Sonnet 4.6 5b3d4a218f fix(channels): DeltaChannel subclass safety and order-independent Overwrite 
copy() and from_checkpoint() hardcoded DeltaChannel instead of
self.__class__, breaking subclasses. Now mirrors the BinaryOperatorAggregate
pattern: self.__class__(self.operator) with explicit typ/key assignment.

update() applied non-overwrite values that arrived before an Overwrite in
the sequence, then discarded them when the Overwrite fired — order-dependent
behaviour in a method whose contract says order is arbitrary. Now pre-scans
for an Overwrite and applies only it (or folds all values normally if none).

Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>
 2026-04-28 17:52:26 -04:00
Sydney RunkleandClaude Sonnet 4.6 bfc192c02e fix(channels): correct _strip_extras dead branch for Required/NotRequired 
The second `if hasattr(t, "__origin__")` block was unreachable — the first
branch always returned, so Required[T] / NotRequired[T] resolved to the bare
class instead of the inner type. Check Required/NotRequired before the generic
__origin__ fallback.

Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>
 2026-04-28 17:51:11 -04:00
Sydney RunkleGitHubClaude Sonnet 4.6
 		9abee46990 feat(langgraph): DeltaChannel snapshot_frequency — bounded read depth with write-count snapshotting (#7634) 
## Summary

Builds on #7586. Adds `snapshot_frequency: int | None` to
`DeltaChannel`, letting users trade storage for bounded read depth. Also
promotes `channels/_delta.py` from private to public
(`channels/delta.py`).

### How it works

Every Nth **pregel step**, `create_checkpoint` writes a `_DeltaSnapshot`
blob instead of `DELTA_SENTINEL`. The ancestor walk in
`_get_channel_writes_history` terminates at the snapshot rather than
walking the full chain, bounding replay to at most N steps.

Snapshots are **eager**: fired even on steps where the channel had no
write (via a `get_next_version` version bump), so the depth bound holds
unconditionally — no risk of the cadence drifting if a channel happens
to be silent at a snapshot step.

### Storage formula

| Mode | Blob storage | Read depth |
|------|-------------|------------|
| `snapshot_frequency=None` (pure delta) | O(N) — sentinels only | O(N)
steps |
| `snapshot_frequency=K` | O(N²/K) — periodic snapshots of growing size
| O(K) steps |
| add_messages / BinOp | O(N²) — full blob every step | O(1) |

At N turns with ~400 char/msg messages, total snapshot storage ≈ N²/(2K)
× avg_msg_size, since each snapshot blob grows linearly with accumulated
messages.

### Key design decisions

- **Step-based**: `snapshot_frequency=K` means "snapshot every K pregel
steps." `create_checkpoint` has the step number; the channel itself
doesn't need to track writes.
- **Eager**: version-bumped via `get_next_version` even on non-write
steps so `put()` always stores the blob.
- **`_DeltaSnapshot` NamedTuple + msgpack ext type**
(`EXT_DELTA_SNAPSHOT = 7`): serde type tag dispatches in
`from_checkpoint` — no dict key inspection, no collision risk.
- **`from_checkpoint` semantics**: `_DeltaSnapshot` → restore value
directly (no replay needed); `DELTA_SENTINEL` / `MISSING` → replay from
ancestor writes; plain value → pre-migration BinOp blob.
- **InMemorySaver and PostgresSaver updated**:
`_get_channel_writes_history` collects the snapshot ancestor's
pending_writes before terminating (they encode the *next* step's
transition, unlike pre-delta migration blobs which subsume their own
writes).
- **`snapshot_frequency=None`** is the pure-delta default (replaces
`math.inf`).

### Benchmark results (InMemory, ~400 char/msg)

**Storage**

| turns | ctx | freq=1 | freq=5 | freq=10 | freq=50 | freq=inf |
|------:|----:|-------:|-------:|--------:|--------:|---------:|
| 50 | ~10K tok | 5.9 MB | 1.2 MB | 601.3 KB | 119.8 KB | 29.5 KB |
| 100 | ~20K tok | 23.7 MB | 4.8 MB | 2.4 MB | 475.8 KB | 58.4 KB |
| 200 | ~40K tok | 94.6 MB | 19.0 MB | 9.5 MB | 1.9 MB | 116.4 KB |
| 500 | ~100K tok | 591.5 MB | 118.4 MB | 59.2 MB | 11.8 MB | 290.3 KB |

**Read latency** (avg of 5 `get_state` calls)

| turns | ctx | freq=1 | freq=5 | freq=10 | freq=50 | freq=inf |
|------:|----:|-------:|-------:|--------:|--------:|---------:|
| 50 | ~10K tok | 0.4ms | 0.4ms | 0.7ms | 0.9ms | 1.8ms |
| 100 | ~20K tok | 0.7ms | 0.9ms | 1.0ms | 1.7ms | 5.7ms |
| 200 | ~40K tok | 1.5ms | 1.7ms | 4.5ms | 3.7ms | 20.1ms |
| 500 | ~100K tok | 3.6ms | 4.2ms | 4.4ms | 9.0ms | 110.3ms |

**Per-invoke write latency**

| turns | ctx | freq=1 | freq=5 | freq=10 | freq=50 | freq=inf |
|------:|----:|-------:|-------:|--------:|--------:|---------:|
| 50 | ~10K tok | 1.5ms | 1.1ms | 1.1ms | 1.3ms | 1.7ms |
| 100 | ~20K tok | 2.5ms | 1.6ms | 1.5ms | 1.7ms | 3.3ms |
| 200 | ~40K tok | 3.4ms | 2.3ms | 2.2ms | 2.5ms | 8.3ms |
| 500 | ~100K tok | 6.2ms | 4.2ms | 3.6ms | 4.1ms | 39.2ms |

## Test plan

- [x] `make format` / `make lint` clean across `langgraph`,
`checkpoint`, `checkpoint-postgres`
- [x] `tests/test_channels.py` — 37 passing including step-based and
eager-snapshot tests
- [x] `tests/test_delta_channel_migration.py` — all passing
- [x] Full suite: 1387 passing, 6 pre-existing failures unrelated to
this branch

---------

Co-authored-by: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>
 2026-04-28 16:42:48 -04:00
Nick HollonandGitHub f4388df77f feat(langgraph): add streaming transformer infrastructure and tests (#7519) 2026-04-28 20:29:21 +00:00
dependabot[bot]GitHubdependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>jkennedyvzClaude Opus 4.7
 		521b4842d3 chore(deps): bump the minor-and-patch group across 1 directory with 4 updates (ty held back) (#7635) 
Bumps the minor-and-patch group with 5 updates in the /libs/sdk-py
directory:

| Package | From | To |
| --- | --- | --- |
| [orjson](https://github.com/ijl/orjson) | `3.11.7` | `3.11.8` |
| [ruff](https://github.com/astral-sh/ruff) | `0.15.6` | `0.15.12` |
| [mypy](https://github.com/python/mypy) | `1.19.1` | `1.20.2` |
| [ty](https://github.com/astral-sh/ty) | `0.0.23` | `0.0.32` |
| [pydantic](https://github.com/pydantic/pydantic) | `2.12.5` | `2.13.3`
|


Updates `orjson` from 3.11.7 to 3.11.8
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/ijl/orjson/releases">orjson's
releases</a>.</em></p>
<blockquote>
<h2>3.11.8</h2>
<h3>Changed</h3>
<ul>
<li>Build and compatibility improvements.</li>
</ul>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/ijl/orjson/blob/master/CHANGELOG.md">orjson's
changelog</a>.</em></p>
<blockquote>
<h2>3.11.8 - 2026-03-31</h2>
<h3>Changed</h3>
<ul>
<li>Build and compatibility improvements.</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/ijl/orjson/commit/5cbb3d0398a2f42de51210270286fecd798c5d78"><code>5cbb3d0</code></a>
3.11.8</li>
<li><a
href="https://github.com/ijl/orjson/commit/4195d7f263e33076295b75efdcbaf6a55af8674e"><code>4195d7f</code></a>
writer::half</li>
<li><a
href="https://github.com/ijl/orjson/commit/d00641b69410728a735f0855eb1c2843b0a5819b"><code>d00641b</code></a>
writer::uuid</li>
<li><a
href="https://github.com/ijl/orjson/commit/c84d9b4ba4853781af943fa5c493e261e2f82b84"><code>c84d9b4</code></a>
build and compatibility misc</li>
<li><a
href="https://github.com/ijl/orjson/commit/4547234b681fac5e0e0734cf44c21e75f9654e43"><code>4547234</code></a>
ffi::numpy</li>
<li><a
href="https://github.com/ijl/orjson/commit/0d4a5ad1f17a72528ba027554466fdec6580cdeb"><code>0d4a5ad</code></a>
datetime PyRef idiom</li>
<li><a
href="https://github.com/ijl/orjson/commit/e93a13d372ec956d027e71d023eb534b8445ac85"><code>e93a13d</code></a>
Cross-compile avoids maturin v1.12 build-details.json error</li>
<li>See full diff in <a
href="https://github.com/ijl/orjson/compare/3.11.7...3.11.8">compare
view</a></li>
</ul>
</details>
<br />

Updates `ruff` from 0.15.6 to 0.15.12
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/astral-sh/ruff/releases">ruff's
releases</a>.</em></p>
<blockquote>
<h2>0.15.12</h2>
<h2>Release Notes</h2>
<p>Released on 2026-04-24.</p>
<h3>Preview features</h3>
<ul>
<li>Implement <code>#ruff:file-ignore</code> file-level suppressions (<a
href="https://redirect.github.com/astral-sh/ruff/pull/23599">#23599</a>)</li>
<li>Implement <code>#ruff:ignore</code> logical-line suppressions (<a
href="https://redirect.github.com/astral-sh/ruff/pull/23404">#23404</a>)</li>
<li>Revert preview changes to displayed diagnostic severity in LSP (<a
href="https://redirect.github.com/astral-sh/ruff/pull/24789">#24789</a>)</li>
<li>[<code>airflow</code>] Implement
<code>task-branch-as-short-circuit</code> (<code>AIR004</code>) (<a
href="https://redirect.github.com/astral-sh/ruff/pull/23579">#23579</a>)</li>
<li>[<code>flake8-bugbear</code>] Fix
<code>break</code>/<code>continue</code> handling in
<code>loop-iterator-mutation</code> (<code>B909</code>) (<a
href="https://redirect.github.com/astral-sh/ruff/pull/24440">#24440</a>)</li>
<li>[<code>pylint</code>] Fix <code>PLC2701</code> for type parameter
scopes (<a
href="https://redirect.github.com/astral-sh/ruff/pull/24576">#24576</a>)</li>
</ul>
<h3>Rule changes</h3>
<ul>
<li>[<code>pandas-vet</code>] Suggest <code>.array</code> as well in
<code>PD011</code> (<a
href="https://redirect.github.com/astral-sh/ruff/pull/24805">#24805</a>)</li>
</ul>
<h3>CLI</h3>
<ul>
<li>Respect default Unix permissions for cache files (<a
href="https://redirect.github.com/astral-sh/ruff/pull/24794">#24794</a>)</li>
</ul>
<h3>Documentation</h3>
<ul>
<li>[<code>pylint</code>] Fix <code>PLR0124</code> description not to
claim self-comparison always returns the same value (<a
href="https://redirect.github.com/astral-sh/ruff/pull/24749">#24749</a>)</li>
<li>[<code>pyupgrade</code>] Expand docs on reusable
<code>TypeVar</code>s and scoping (<code>UP046</code>) (<a
href="https://redirect.github.com/astral-sh/ruff/pull/24153">#24153</a>)</li>
<li>Improve rules table accessibility (<a
href="https://redirect.github.com/astral-sh/ruff/pull/24711">#24711</a>)</li>
</ul>
<h3>Contributors</h3>
<ul>
<li><a href="https://github.com/dylwil3"><code>@​dylwil3</code></a></li>
<li><a
href="https://github.com/AlexWaygood"><code>@​AlexWaygood</code></a></li>
<li><a
href="https://github.com/woodruffw"><code>@​woodruffw</code></a></li>
<li><a
href="https://github.com/avasis-ai"><code>@​avasis-ai</code></a></li>
<li><a href="https://github.com/Dev-iL"><code>@​Dev-iL</code></a></li>
<li><a
href="https://github.com/denyszhak"><code>@​denyszhak</code></a></li>
<li><a
href="https://github.com/ShipItAndPray"><code>@​ShipItAndPray</code></a></li>
<li><a
href="https://github.com/anishgirianish"><code>@​anishgirianish</code></a></li>
<li><a
href="https://github.com/augustelalande"><code>@​augustelalande</code></a></li>
<li><a
href="https://github.com/amyreese"><code>@​amyreese</code></a></li>
<li><a
href="https://github.com/majiayu000"><code>@​majiayu000</code></a></li>
</ul>
<h2>Install ruff 0.15.12</h2>
<h3>Install prebuilt binaries via shell script</h3>
<pre lang="sh"><code>curl --proto '=https' --tlsv1.2 -LsSf
https://releases.astral.sh/github/ruff/releases/download/0.15.12/ruff-installer.sh
| sh
</code></pre>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/astral-sh/ruff/blob/main/CHANGELOG.md">ruff's
changelog</a>.</em></p>
<blockquote>
<h2>0.15.12</h2>
<p>Released on 2026-04-24.</p>
<h3>Preview features</h3>
<ul>
<li>Implement <code>#ruff:file-ignore</code> file-level suppressions (<a
href="https://redirect.github.com/astral-sh/ruff/pull/23599">#23599</a>)</li>
<li>Implement <code>#ruff:ignore</code> logical-line suppressions (<a
href="https://redirect.github.com/astral-sh/ruff/pull/23404">#23404</a>)</li>
<li>Revert preview changes to displayed diagnostic severity in LSP (<a
href="https://redirect.github.com/astral-sh/ruff/pull/24789">#24789</a>)</li>
<li>[<code>airflow</code>] Implement
<code>task-branch-as-short-circuit</code> (<code>AIR004</code>) (<a
href="https://redirect.github.com/astral-sh/ruff/pull/23579">#23579</a>)</li>
<li>[<code>flake8-bugbear</code>] Fix
<code>break</code>/<code>continue</code> handling in
<code>loop-iterator-mutation</code> (<code>B909</code>) (<a
href="https://redirect.github.com/astral-sh/ruff/pull/24440">#24440</a>)</li>
<li>[<code>pylint</code>] Fix <code>PLC2701</code> for type parameter
scopes (<a
href="https://redirect.github.com/astral-sh/ruff/pull/24576">#24576</a>)</li>
</ul>
<h3>Rule changes</h3>
<ul>
<li>[<code>pandas-vet</code>] Suggest <code>.array</code> as well in
<code>PD011</code> (<a
href="https://redirect.github.com/astral-sh/ruff/pull/24805">#24805</a>)</li>
</ul>
<h3>CLI</h3>
<ul>
<li>Respect default Unix permissions for cache files (<a
href="https://redirect.github.com/astral-sh/ruff/pull/24794">#24794</a>)</li>
</ul>
<h3>Documentation</h3>
<ul>
<li>[<code>pylint</code>] Fix <code>PLR0124</code> description not to
claim self-comparison always returns the same value (<a
href="https://redirect.github.com/astral-sh/ruff/pull/24749">#24749</a>)</li>
<li>[<code>pyupgrade</code>] Expand docs on reusable
<code>TypeVar</code>s and scoping (<code>UP046</code>) (<a
href="https://redirect.github.com/astral-sh/ruff/pull/24153">#24153</a>)</li>
<li>Improve rules table accessibility (<a
href="https://redirect.github.com/astral-sh/ruff/pull/24711">#24711</a>)</li>
</ul>
<h3>Contributors</h3>
<ul>
<li><a href="https://github.com/dylwil3"><code>@​dylwil3</code></a></li>
<li><a
href="https://github.com/AlexWaygood"><code>@​AlexWaygood</code></a></li>
<li><a
href="https://github.com/woodruffw"><code>@​woodruffw</code></a></li>
<li><a
href="https://github.com/avasis-ai"><code>@​avasis-ai</code></a></li>
<li><a href="https://github.com/Dev-iL"><code>@​Dev-iL</code></a></li>
<li><a
href="https://github.com/denyszhak"><code>@​denyszhak</code></a></li>
<li><a
href="https://github.com/ShipItAndPray"><code>@​ShipItAndPray</code></a></li>
<li><a
href="https://github.com/anishgirianish"><code>@​anishgirianish</code></a></li>
<li><a
href="https://github.com/augustelalande"><code>@​augustelalande</code></a></li>
<li><a
href="https://github.com/amyreese"><code>@​amyreese</code></a></li>
<li><a
href="https://github.com/majiayu000"><code>@​majiayu000</code></a></li>
</ul>
<h2>0.15.11</h2>
<p>Released on 2026-04-16.</p>
<h3>Preview features</h3>
<ul>
<li>[<code>ruff</code>] Ignore <code>RUF029</code> when function is
decorated with <code>asynccontextmanager</code> (<a
href="https://redirect.github.com/astral-sh/ruff/pull/24642">#24642</a>)</li>
<li>[<code>airflow</code>] Implement
<code>airflow-xcom-pull-in-template-string</code> (<code>AIR201</code>)
(<a
href="https://redirect.github.com/astral-sh/ruff/pull/23583">#23583</a>)</li>
<li>[<code>flake8-bandit</code>] Fix <code>S103</code> false positives
and negatives in mask analysis (<a
href="https://redirect.github.com/astral-sh/ruff/pull/24424">#24424</a>)</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/astral-sh/ruff/commit/66f93cf7ed4d36325f35a452e4afa28268fbcd28"><code>66f93cf</code></a>
Bump 0.15.12 (<a
href="https://redirect.github.com/astral-sh/ruff/issues/24815">#24815</a>)</li>
<li><a
href="https://github.com/astral-sh/ruff/commit/476a4d02e8e3b6c157ac39979d8b698a1b6baa91"><code>476a4d0</code></a>
[ty] Complete support for more detailed diagnostics on possibly unbound
error...</li>
<li><a
href="https://github.com/astral-sh/ruff/commit/ed669eab30095d6c51fe6cdef6050fb01276bcb3"><code>ed669ea</code></a>
Implement <code>#ruff:file-ignore</code> file-level suppressions (<a
href="https://redirect.github.com/astral-sh/ruff/issues/23599">#23599</a>)</li>
<li><a
href="https://github.com/astral-sh/ruff/commit/e73d952e43feb51356ee740c5a973fce81396ff6"><code>e73d952</code></a>
[ty] Include inferred type in <code>invalid-key</code> concise
diagnostic for union/inte...</li>
<li><a
href="https://github.com/astral-sh/ruff/commit/80feb29b31cd98c093316df2e0407b0c70c01b55"><code>80feb29</code></a>
[ty] report only dead annotation-only locals as unused (<a
href="https://redirect.github.com/astral-sh/ruff/issues/24811">#24811</a>)</li>
<li><a
href="https://github.com/astral-sh/ruff/commit/0fbf2bc27336a3d17d39af52cf89b78dcda8c7c8"><code>0fbf2bc</code></a>
Drop deprecated license classifier (<a
href="https://redirect.github.com/astral-sh/ruff/issues/24808">#24808</a>)</li>
<li><a
href="https://github.com/astral-sh/ruff/commit/43b174cc7f2fcb0080bb1d4843cd4bf6b72bbe27"><code>43b174c</code></a>
[ty] Infer lambda parameter types with <code>Callable</code> type
context (<a
href="https://redirect.github.com/astral-sh/ruff/issues/24317">#24317</a>)</li>
<li><a
href="https://github.com/astral-sh/ruff/commit/4f449ae4a2377569330a5ab94799d389357b5a3f"><code>4f449ae</code></a>
[ty] Add error context for intersection types (<a
href="https://redirect.github.com/astral-sh/ruff/issues/24772">#24772</a>)</li>
<li><a
href="https://github.com/astral-sh/ruff/commit/5b4e753acb46e96ad408e4904c15308e33efe307"><code>5b4e753</code></a>
[ty] Add support for goto in literal enum member inlay hint (<a
href="https://redirect.github.com/astral-sh/ruff/issues/24792">#24792</a>)</li>
<li><a
href="https://github.com/astral-sh/ruff/commit/e7cc76275a758ce1c636ea1c2d091fd576aac794"><code>e7cc762</code></a>
[ty] Add error context for TypedDict assignments (<a
href="https://redirect.github.com/astral-sh/ruff/issues/24790">#24790</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/astral-sh/ruff/compare/0.15.6...0.15.12">compare
view</a></li>
</ul>
</details>
<br />

Updates `mypy` from 1.19.1 to 1.20.2
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/python/mypy/blob/master/CHANGELOG.md">mypy's
changelog</a>.</em></p>
<blockquote>
<h3>Mypy 1.20.2</h3>
<ul>
<li>Use WAL with SQLite cache and fix close (Shantanu, PR <a
href="https://redirect.github.com/python/mypy/pull/21154">21154</a>)</li>
<li>Adjust SQLite journal mode (Ivan Levkivskyi, PR <a
href="https://redirect.github.com/python/mypy/pull/21217">21217</a>)</li>
<li>Correctly aggregate narrowing information on parent expressions
(Shantanu, PR <a
href="https://redirect.github.com/python/mypy/pull/21206">21206</a>)</li>
<li>Fix regression related to generic callables (Shantanu, PR <a
href="https://redirect.github.com/python/mypy/pull/21208">21208</a>)</li>
<li>Fix regression by avoiding widening types in some contexts
(Shantanu, PR <a
href="https://redirect.github.com/python/mypy/pull/21242">21242</a>)</li>
<li>Fix slicing in non-strict optional mode (Shantanu, PR <a
href="https://redirect.github.com/python/mypy/pull/21282">21282</a>)</li>
<li>mypyc: Fix match statement semantics for &quot;or&quot; pattern
(Shantanu, PR <a
href="https://redirect.github.com/python/mypy/pull/21156">21156</a>)</li>
<li>mypyc: Fix issue with module dunder attributes (Piotr Sawicki, PR <a
href="https://redirect.github.com/python/mypy/pull/21275">21275</a>)</li>
<li>Initial support for Python 3.15.0a8 (Marc Mueller, PR <a
href="https://redirect.github.com/python/mypy/pull/21255">21255</a>)</li>
</ul>
<h3>Acknowledgements</h3>
<p>Thanks to all mypy contributors who contributed to this release:</p>
<ul>
<li>A5rocks</li>
<li>Aaron Wieczorek</li>
<li>Adam Turner</li>
<li>Ali Hamdan</li>
<li>asce</li>
<li>BobTheBuidler</li>
<li>Brent Westbrook</li>
<li>Brian Schubert</li>
<li>bzoracler</li>
<li>Chris Burroughs</li>
<li>Christoph Tyralla</li>
<li>Colin Watson</li>
<li>Donghoon Nam</li>
<li>E. M. Bray</li>
<li>Emma Smith</li>
<li>Ethan Sarp</li>
<li>George Ogden</li>
<li>getzze</li>
<li>grayjk</li>
<li>Gregor Riepl</li>
<li>Ivan Levkivskyi</li>
<li>James Hilliard</li>
<li>James Le Cuirot</li>
<li>Jeremy Nimmer</li>
<li>Joren Hammudoglu</li>
<li>Kai (Kazuya Ito)</li>
<li>kaushal trivedi</li>
<li>Kevin Kannammalil</li>
<li>Lukas Geiger</li>
<li>Łukasz Langa</li>
<li>Marc Mueller</li>
<li>Michael R. Crusoe</li>
<li>michaelm-openai</li>
<li>Neil Schemenauer</li>
<li>Piotr Sawicki</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/python/mypy/commit/145a062651b5f9996b75ef32b7040bd2e885ed82"><code>145a062</code></a>
Bump version to 1.20.2</li>
<li><a
href="https://github.com/python/mypy/commit/81cd49215c288eacb987de066f02daff2553b7c7"><code>81cd492</code></a>
Fix slicing with nonstrict optional (<a
href="https://redirect.github.com/python/mypy/issues/21282">#21282</a>)</li>
<li><a
href="https://github.com/python/mypy/commit/908d3441eecbaa2a6193165317177db834d7ca1a"><code>908d344</code></a>
[mypyc] Set dunder attrs when adding module to sys.modules (<a
href="https://redirect.github.com/python/mypy/issues/21275">#21275</a>)</li>
<li><a
href="https://github.com/python/mypy/commit/ba28610fac9d2b33be210ca8dcfe4bc47b7af424"><code>ba28610</code></a>
Initial support for Python 3.15.0a8 (<a
href="https://redirect.github.com/python/mypy/issues/21255">#21255</a>)</li>
<li><a
href="https://github.com/python/mypy/commit/7b0e09f48dbd3717ed008a273cd17e8e960c2037"><code>7b0e09f</code></a>
Fix match statement semantics for &quot;or&quot; pattern (<a
href="https://redirect.github.com/python/mypy/issues/21156">#21156</a>)</li>
<li><a
href="https://github.com/python/mypy/commit/92b74f226de62f7505f5ef5cb158e8ec9c58b8b7"><code>92b74f2</code></a>
Avoid widening types in conditional_types (<a
href="https://redirect.github.com/python/mypy/issues/21242">#21242</a>)</li>
<li><a
href="https://github.com/python/mypy/commit/0dcbfaa40b0e360a16baea9cf851955375d91b54"><code>0dcbfaa</code></a>
Fix is_overlapping_types for generic callables (<a
href="https://redirect.github.com/python/mypy/issues/21208">#21208</a>)</li>
<li><a
href="https://github.com/python/mypy/commit/210f518dede35292033ef0d387847406a0ccef8f"><code>210f518</code></a>
Correctly aggregate narrowing information on parent expressions (<a
href="https://redirect.github.com/python/mypy/issues/21206">#21206</a>)</li>
<li><a
href="https://github.com/python/mypy/commit/c34530e53a10e385d8b0f1af4baa88a596b5ceaa"><code>c34530e</code></a>
Only set journal mode in coordinator (<a
href="https://redirect.github.com/python/mypy/issues/21217">#21217</a>)</li>
<li><a
href="https://github.com/python/mypy/commit/79a3ec6d01b56a27c00e9b3320c2b1d4d73a77f9"><code>79a3ec6</code></a>
Use WAL with SQLite cache, fix close (<a
href="https://redirect.github.com/python/mypy/issues/21154">#21154</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/python/mypy/compare/v1.19.1...v1.20.2">compare
view</a></li>
</ul>
</details>
<br />

Updates `ty` from 0.0.23 to 0.0.32
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/astral-sh/ty/releases">ty's
releases</a>.</em></p>
<blockquote>
<h2>0.0.32</h2>
<h2>Release Notes</h2>
<p>Released on 2026-04-20.</p>
<h3>Bug fixes</h3>
<ul>
<li>Fix panic when <code>__get__</code> uses <code>Concatenate</code>
<code>self</code>-type and wraps a <code>__call__</code> (<a
href="https://redirect.github.com/astral-sh/ruff/pull/24692">#24692</a>)</li>
<li>Avoid panicking on overloaded <code>Callable</code> type context (<a
href="https://redirect.github.com/astral-sh/ruff/pull/24661">#24661</a>)</li>
<li>Expand class bases in per-base lint checks (<a
href="https://redirect.github.com/astral-sh/ruff/pull/24695">#24695</a>,
<a
href="https://redirect.github.com/astral-sh/ruff/pull/24699">#24699</a>)</li>
<li>Fix stack overflow for binary operator inference involving recursive
types (<a
href="https://redirect.github.com/astral-sh/ruff/pull/24551">#24551</a>)</li>
</ul>
<h3>LSP server</h3>
<ul>
<li>Dim out unreachable code in IDEs (<a
href="https://redirect.github.com/astral-sh/ruff/pull/24580">#24580</a>)</li>
<li>Do not suggest argument completion when typing the value of a
keyword argument (<a
href="https://redirect.github.com/astral-sh/ruff/pull/24669">#24669</a>)</li>
<li>Retrieve the docstring from the overload implementation if an
<code>@overload</code>-decorated function has no docstring (<a
href="https://redirect.github.com/astral-sh/ruff/pull/23920">#23920</a>)</li>
</ul>
<h3>Core type checking</h3>
<ul>
<li>Allow <code>if</code> statements in TypedDict bodies (<a
href="https://redirect.github.com/astral-sh/ruff/pull/24702">#24702</a>)</li>
<li>Disallow <code>@disjoint_base</code> on TypedDicts and Protocols (<a
href="https://redirect.github.com/astral-sh/ruff/pull/24671">#24671</a>)</li>
<li>Do not consider a subclass of a
<code>@dataclass_transform</code>-decorated class to have dataclass-like
semantics if it has <code>type</code> in its MRO (<a
href="https://redirect.github.com/astral-sh/ruff/pull/24679">#24679</a>)</li>
<li>Reject using properties with <code>Never</code> setters or deleters
(<a
href="https://redirect.github.com/astral-sh/ruff/pull/24510">#24510</a>)</li>
<li>Sync vendored typeshed stubs (<a
href="https://redirect.github.com/astral-sh/ruff/pull/24646">#24646</a>).
<a
href="https://github.com/python/typeshed/compare/f8f0794d0fe249c06dc9f31a004d85be6cca6ced...c03c2b926422c82ab680d27f3ad2491845000802">Typeshed
diff</a></li>
</ul>
<h3>Diagnostics</h3>
<ul>
<li>Show error context for assignability diagnostics (<a
href="https://redirect.github.com/astral-sh/ruff/pull/24309">#24309</a>)</li>
<li>Use partially qualified names when reporting diagnostics regarding
bad calls to methods (<a
href="https://redirect.github.com/astral-sh/ruff/pull/24560">#24560</a>)</li>
<li>Reduce source code context window to zero (<a
href="https://redirect.github.com/astral-sh/ruff/pull/24689">#24689</a>)</li>
<li>Merge same-file annotations if there is only a single line
separating them (<a
href="https://redirect.github.com/astral-sh/ruff/pull/24694">#24694</a>)</li>
</ul>
<h3>Performance</h3>
<ul>
<li>Memoize binary operator return types (<a
href="https://redirect.github.com/astral-sh/ruff/pull/24700">#24700</a>)</li>
<li>Gate protocol compatibility on member count (<a
href="https://redirect.github.com/astral-sh/ruff/pull/24684">#24684</a>)</li>
</ul>
<h3>Contributors</h3>
<ul>
<li><a
href="https://github.com/JelleZijlstra"><code>@​JelleZijlstra</code></a></li>
<li><a href="https://github.com/kc0506"><code>@​kc0506</code></a></li>
<li><a
href="https://github.com/denyszhak"><code>@​denyszhak</code></a></li>
<li><a href="https://github.com/carljm"><code>@​carljm</code></a></li>
<li><a
href="https://github.com/dcreager"><code>@​dcreager</code></a></li>
<li><a
href="https://github.com/AlexWaygood"><code>@​AlexWaygood</code></a></li>
<li><a href="https://github.com/dylwil3"><code>@​dylwil3</code></a></li>
<li><a
href="https://github.com/charliermarsh"><code>@​charliermarsh</code></a></li>
<li><a href="https://github.com/sharkdp"><code>@​sharkdp</code></a></li>
<li><a
href="https://github.com/ibraheemdev"><code>@​ibraheemdev</code></a></li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/astral-sh/ty/blob/main/CHANGELOG.md">ty's
changelog</a>.</em></p>
<blockquote>
<h2>0.0.32</h2>
<p>Released on 2026-04-20.</p>
<h3>Bug fixes</h3>
<ul>
<li>Fix panic when <code>__get__</code> uses <code>Concatenate</code>
<code>self</code>-type and wraps a <code>__call__</code> (<a
href="https://redirect.github.com/astral-sh/ruff/pull/24692">#24692</a>)</li>
<li>Avoid panicking on overloaded <code>Callable</code> type context (<a
href="https://redirect.github.com/astral-sh/ruff/pull/24661">#24661</a>)</li>
<li>Expand class bases in per-base lint checks (<a
href="https://redirect.github.com/astral-sh/ruff/pull/24695">#24695</a>,
<a
href="https://redirect.github.com/astral-sh/ruff/pull/24699">#24699</a>)</li>
<li>Fix stack overflow for binary operator inference involving recursive
types (<a
href="https://redirect.github.com/astral-sh/ruff/pull/24551">#24551</a>)</li>
</ul>
<h3>LSP server</h3>
<ul>
<li>Dim out unreachable code in IDEs (<a
href="https://redirect.github.com/astral-sh/ruff/pull/24580">#24580</a>)</li>
<li>Do not suggest argument completion when typing the value of a
keyword argument (<a
href="https://redirect.github.com/astral-sh/ruff/pull/24669">#24669</a>)</li>
<li>Retrieve the docstring from the overload implementation if an
<code>@overload</code>-decorated function has no docstring (<a
href="https://redirect.github.com/astral-sh/ruff/pull/23920">#23920</a>)</li>
</ul>
<h3>Core type checking</h3>
<ul>
<li>Allow <code>if</code> statements in TypedDict bodies (<a
href="https://redirect.github.com/astral-sh/ruff/pull/24702">#24702</a>)</li>
<li>Disallow <code>@disjoint_base</code> on TypedDicts and Protocols (<a
href="https://redirect.github.com/astral-sh/ruff/pull/24671">#24671</a>)</li>
<li>Do not consider a subclass of a
<code>@dataclass_transform</code>-decorated class to have dataclass-like
semantics if it has <code>type</code> in its MRO (<a
href="https://redirect.github.com/astral-sh/ruff/pull/24679">#24679</a>)</li>
<li>Reject using properties with <code>Never</code> setters or deleters
(<a
href="https://redirect.github.com/astral-sh/ruff/pull/24510">#24510</a>)</li>
<li>Sync vendored typeshed stubs (<a
href="https://redirect.github.com/astral-sh/ruff/pull/24646">#24646</a>).
<a
href="https://github.com/python/typeshed/compare/f8f0794d0fe249c06dc9f31a004d85be6cca6ced...c03c2b926422c82ab680d27f3ad2491845000802">Typeshed
diff</a></li>
</ul>
<h3>Diagnostics</h3>
<ul>
<li>Show error context for assignability diagnostics (<a
href="https://redirect.github.com/astral-sh/ruff/pull/24309">#24309</a>)</li>
<li>Use partially qualified names when reporting diagnostics regarding
bad calls to methods (<a
href="https://redirect.github.com/astral-sh/ruff/pull/24560">#24560</a>)</li>
<li>Reduce source code context window to zero (<a
href="https://redirect.github.com/astral-sh/ruff/pull/24689">#24689</a>)</li>
<li>Merge same-file annotations if there is only a single line
separating them (<a
href="https://redirect.github.com/astral-sh/ruff/pull/24694">#24694</a>)</li>
</ul>
<h3>Performance</h3>
<ul>
<li>Memoize binary operator return types (<a
href="https://redirect.github.com/astral-sh/ruff/pull/24700">#24700</a>)</li>
<li>Gate protocol compatibility on member count (<a
href="https://redirect.github.com/astral-sh/ruff/pull/24684">#24684</a>)</li>
</ul>
<h3>Contributors</h3>
<ul>
<li><a
href="https://github.com/JelleZijlstra"><code>@​JelleZijlstra</code></a></li>
<li><a href="https://github.com/kc0506"><code>@​kc0506</code></a></li>
<li><a
href="https://github.com/denyszhak"><code>@​denyszhak</code></a></li>
<li><a href="https://github.com/carljm"><code>@​carljm</code></a></li>
<li><a
href="https://github.com/dcreager"><code>@​dcreager</code></a></li>
<li><a
href="https://github.com/AlexWaygood"><code>@​AlexWaygood</code></a></li>
<li><a href="https://github.com/dylwil3"><code>@​dylwil3</code></a></li>
<li><a
href="https://github.com/charliermarsh"><code>@​charliermarsh</code></a></li>
<li><a href="https://github.com/sharkdp"><code>@​sharkdp</code></a></li>
<li><a
href="https://github.com/ibraheemdev"><code>@​ibraheemdev</code></a></li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/astral-sh/ty/commit/4d1e1fc57ca8bfdcbcee513ba92135d2932eb279"><code>4d1e1fc</code></a>
Bump version to 0.0.32 (<a
href="https://redirect.github.com/astral-sh/ty/issues/3302">#3302</a>)</li>
<li><a
href="https://github.com/astral-sh/ty/commit/a537bdefc97080d4400113eb6635ae133c5b3bcf"><code>a537bde</code></a>
Update PyO3/maturin-action action to v1.51.0 (<a
href="https://redirect.github.com/astral-sh/ty/issues/3300">#3300</a>)</li>
<li><a
href="https://github.com/astral-sh/ty/commit/81e41250e0b53893f1f86eae3bc59867f15720ac"><code>81e4125</code></a>
Update actions/upload-artifact action to v7.0.1 (<a
href="https://redirect.github.com/astral-sh/ty/issues/3296">#3296</a>)</li>
<li><a
href="https://github.com/astral-sh/ty/commit/a9dd1cbb536838e21b36b2c459b5bf6098c295cf"><code>a9dd1cb</code></a>
Update docker/build-push-action action to v7.1.0 (<a
href="https://redirect.github.com/astral-sh/ty/issues/3299">#3299</a>)</li>
<li><a
href="https://github.com/astral-sh/ty/commit/ef0a7dd496dbf60000d79ac92ff171191cae424b"><code>ef0a7dd</code></a>
Update actions/github-script action to v9 (<a
href="https://redirect.github.com/astral-sh/ty/issues/3301">#3301</a>)</li>
<li><a
href="https://github.com/astral-sh/ty/commit/74f058324890813da652964cdf2d29c1207fdeab"><code>74f0583</code></a>
Update astral-sh/setup-uv action to v8.1.0 (<a
href="https://redirect.github.com/astral-sh/ty/issues/3298">#3298</a>)</li>
<li><a
href="https://github.com/astral-sh/ty/commit/82799cc0d01beed42e06c110bdaabb9ab243fce2"><code>82799cc</code></a>
Update prek dependencies (<a
href="https://redirect.github.com/astral-sh/ty/issues/3297">#3297</a>)</li>
<li><a
href="https://github.com/astral-sh/ty/commit/daaa40454966558ffd2a0ea3dcf86bc1749c8715"><code>daaa404</code></a>
Bump version to 0.0.31 (<a
href="https://redirect.github.com/astral-sh/ty/issues/3280">#3280</a>)</li>
<li><a
href="https://github.com/astral-sh/ty/commit/12e86b58b5034a29266268195afc16feeab6e3ea"><code>12e86b5</code></a>
Bump version to 0.0.30 (<a
href="https://redirect.github.com/astral-sh/ty/issues/3270">#3270</a>)</li>
<li><a
href="https://github.com/astral-sh/ty/commit/67077ad5fbde5adc1df0e3169525040ad1139dab"><code>67077ad</code></a>
Reorder sections in FAQ (<a
href="https://redirect.github.com/astral-sh/ty/issues/3267">#3267</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/astral-sh/ty/compare/0.0.23...0.0.32">compare
view</a></li>
</ul>
</details>
<br />

Updates `pydantic` from 2.12.5 to 2.13.3
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/pydantic/pydantic/releases">pydantic's
releases</a>.</em></p>
<blockquote>
<h2>v2.13.3 2026-04-20</h2>
<h2>v2.13.3 (2026-04-20)</h2>
<h3>What's Changed</h3>
<h4>Fixes</h4>
<ul>
<li>Handle <code>AttributeError</code> subclasses with
<code>from_attributes</code> by <a
href="https://github.com/Viicos"><code>@​Viicos</code></a> in <a
href="https://redirect.github.com/pydantic/pydantic/pull/13096">#13096</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/pydantic/pydantic/compare/v2.13.2...v2.13.3">https://github.com/pydantic/pydantic/compare/v2.13.2...v2.13.3</a></p>
<h2>v2.13.2 2026-04-17</h2>
<h2>v2.13.2 (2026-04-17)</h2>
<h3>What's Changed</h3>
<h4>Fixes</h4>
<ul>
<li>Fix <code>ValidationInfo.field_name</code> missing with
<code>model_validate_json()</code> by <a
href="https://github.com/Viicos"><code>@​Viicos</code></a> in <a
href="https://redirect.github.com/pydantic/pydantic/pull/13084">#13084</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/pydantic/pydantic/compare/v2.13.1...v2.13.2">https://github.com/pydantic/pydantic/compare/v2.13.1...v2.13.2</a></p>
<h2>v2.13.1 2026-04-15</h2>
<h2>v2.13.1 (2026-04-15)</h2>
<h3>What's Changed</h3>
<h4>Fixes</h4>
<ul>
<li>Fix <code>ValidationInfo.data</code> missing with
<code>model_validate_json()</code> by <a
href="https://github.com/davidhewitt"><code>@​davidhewitt</code></a> in
<a
href="https://redirect.github.com/pydantic/pydantic/pull/13079">#13079</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/pydantic/pydantic/compare/v2.13.0...v2.13.1">https://github.com/pydantic/pydantic/compare/v2.13.0...v2.13.1</a></p>
<h2>v2.13.0 2026-04-13</h2>
<h2>v2.13.0 (2026-04-13)</h2>
<p>The highlights of the v2.13 release are available in the <a
href="https://pydantic.dev/articles/pydantic-v2-13-release">blog
post</a>.
Several minor changes (considered non-breaking changes according to our
<a
href="https://pydantic.dev/docs/validation/2.13/get-started/version-policy/#pydantic-v2">versioning
policy</a>) are also included in this release. Make sure to look into
them before upgrading.</p>
<p>This release contains the updated <code>pydantic.v1</code> namespace,
matching version 1.10.26 which includes support for Python 3.14.</p>
<h3>What's Changed</h3>
<p>See the beta releases for all changes sinces 2.12.</p>
<h4>Packaging</h4>
<ul>
<li>Add zizmor for GitHub Actions workflow linting by <a
href="https://github.com/Viicos"><code>@​Viicos</code></a> in <a
href="https://redirect.github.com/pydantic/pydantic/pull/13039">#13039</a></li>
<li>Update jiter to v0.14.0 to fix a segmentation fault on musl Linux by
<a href="https://github.com/Viicos"><code>@​Viicos</code></a> in <a
href="https://redirect.github.com/pydantic/pydantic/pull/13064">#13064</a></li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/pydantic/pydantic/blob/main/HISTORY.md">pydantic's
changelog</a>.</em></p>
<blockquote>
<h2>v2.13.3 (2026-04-20)</h2>
<p><a
href="https://github.com/pydantic/pydantic/releases/tag/v2.13.3">GitHub
release</a></p>
<h3>What's Changed</h3>
<h4>Fixes</h4>
<ul>
<li>Handle <code>AttributeError</code> subclasses with
<code>from_attributes</code> by <a
href="https://github.com/Viicos"><code>@​Viicos</code></a> in <a
href="https://redirect.github.com/pydantic/pydantic/pull/13096">#13096</a></li>
</ul>
<h2>v2.13.2 (2026-04-17)</h2>
<p><a
href="https://github.com/pydantic/pydantic/releases/tag/v2.13.2">GitHub
release</a></p>
<h3>What's Changed</h3>
<h4>Fixes</h4>
<ul>
<li>Fix <code>ValidationInfo.field_name</code> missing with
<code>model_validate_json()</code> by <a
href="https://github.com/Viicos"><code>@​Viicos</code></a> in <a
href="https://redirect.github.com/pydantic/pydantic/pull/13084">#13084</a></li>
</ul>
<h2>v2.13.1 (2026-04-15)</h2>
<p><a
href="https://github.com/pydantic/pydantic/releases/tag/v2.13.1">GitHub
release</a></p>
<h3>What's Changed</h3>
<h4>Fixes</h4>
<ul>
<li>Fix <code>ValidationInfo.data</code> missing with
<code>model_validate_json()</code> by <a
href="https://github.com/davidhewitt"><code>@​davidhewitt</code></a> in
<a
href="https://redirect.github.com/pydantic/pydantic/pull/13079">#13079</a></li>
</ul>
<h2>v2.13.0 (2026-04-13)</h2>
<p><a
href="https://github.com/pydantic/pydantic/releases/tag/v2.13.0">GitHub
release</a></p>
<p>The highlights of the v2.13 release are available in the <a
href="https://pydantic.dev/articles/pydantic-v2-13-release">blog
post</a>.
Several minor changes (considered non-breaking changes according to our
<a
href="https://pydantic.dev/docs/validation/2.13/get-started/version-policy/#pydantic-v2">versioning
policy</a>)
are also included in this release. Make sure to look into them before
upgrading.</p>
<p>This release contains the updated <code>pydantic.v1</code> namespace,
matching version 1.10.26 which includes support for Python 3.14.</p>
<h3>What's Changed</h3>
<p>See the beta releases for all changes sinces 2.12.</p>
<h4>New Features</h4>
<ul>
<li>Allow default factories of private attributes to take validated
model data by <a
href="https://github.com/Viicos"><code>@​Viicos</code></a> in <a
href="https://redirect.github.com/pydantic/pydantic/pull/13013">#13013</a></li>
</ul>
<h4>Changes</h4>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/pydantic/pydantic/commit/9e9a11132c980c4ec84ff6d2df06d4c1a55ca8f3"><code>9e9a111</code></a>
Fix backported test</li>
<li><a
href="https://github.com/pydantic/pydantic/commit/1ec8c6aa0cae1c78409c6f31af738a24e16c7124"><code>1ec8c6a</code></a>
Prepare release v2.13.3</li>
<li><a
href="https://github.com/pydantic/pydantic/commit/fb4f2044436e9fa4ff9745479ce263016a99c4d6"><code>fb4f204</code></a>
Handle <code>AttributeError</code> subclasses with
<code>from_attributes</code></li>
<li><a
href="https://github.com/pydantic/pydantic/commit/ca3ddd1149bd3b14273922a29da174804496a055"><code>ca3ddd1</code></a>
Prepare release v2.13.2</li>
<li><a
href="https://github.com/pydantic/pydantic/commit/000e823a3ab7545b0c6064fde34effdcd02044ab"><code>000e823</code></a>
Fix <code>ValidationInfo.field_name</code> missing with
<code>model_validate_json()</code></li>
<li><a
href="https://github.com/pydantic/pydantic/commit/d45d8be3ffb6dfc6d0c64da6980140c91ff841fb"><code>d45d8be</code></a>
Prepare release 2.13.1</li>
<li><a
href="https://github.com/pydantic/pydantic/commit/54aca609ce58e73dfe1c681d93432fbe3a4621da"><code>54aca60</code></a>
Fix <code>ValidationInfo.data</code> missing with
<code>model_validate_json()</code></li>
<li><a
href="https://github.com/pydantic/pydantic/commit/46bf4fa648af3a1fbf4603a37f210e9d9c618357"><code>46bf4fa</code></a>
Fix Pydantic release workflow (<a
href="https://redirect.github.com/pydantic/pydantic/issues/13067">#13067</a>)</li>
<li><a
href="https://github.com/pydantic/pydantic/commit/1b359edab09c623464d23c6fd2503ae5ff276d43"><code>1b359ed</code></a>
Prepare release v2.13.0 (<a
href="https://redirect.github.com/pydantic/pydantic/issues/13065">#13065</a>)</li>
<li><a
href="https://github.com/pydantic/pydantic/commit/b1bf19445d8ac144a7a0e82674d2d87eebab6c18"><code>b1bf194</code></a>
Fix model equality when using runtime <code>extra</code> configuration
(<a
href="https://redirect.github.com/pydantic/pydantic/issues/13062">#13062</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/pydantic/pydantic/compare/v2.12.5...v2.13.3">compare
view</a></li>
</ul>
</details>
<br />


Dependabot will resolve any conflicts with this PR as long as you don't
alter it yourself. You can also trigger a rebase manually by commenting
`@dependabot rebase`.

[//]: # (dependabot-automerge-start)
[//]: # (dependabot-automerge-end)

---

<details>
<summary>Dependabot commands and options</summary>
<br />

You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
- `@dependabot recreate` will recreate this PR, overwriting any edits
that have been made to it
- `@dependabot show <dependency name> ignore conditions` will show all
of the ignore conditions of the specified dependency
- `@dependabot ignore <dependency name> major version` will close this
group update PR and stop Dependabot creating any more for the specific
dependency's major version (unless you unignore this specific
dependency's major version or upgrade to it yourself)
- `@dependabot ignore <dependency name> minor version` will close this
group update PR and stop Dependabot creating any more for the specific
dependency's minor version (unless you unignore this specific
dependency's minor version or upgrade to it yourself)
- `@dependabot ignore <dependency name>` will close this group update PR
and stop Dependabot creating any more for the specific dependency
(unless you unignore this specific dependency or upgrade to it yourself)
- `@dependabot unignore <dependency name>` will remove all of the ignore
conditions of the specified dependency
- `@dependabot unignore <dependency name> <ignore condition>` will
remove the ignore condition of the specified dependency and ignore
conditions


</details>

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: jkennedyvz <65985482+jkennedyvz@users.noreply.github.com>
Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-28 01:20:26 -07:00
Sydney RunkleandGitHub cb328b57f1 release(prebuilt): 1.0.12, langgraph 1.1.10 (#7623) 
## Summary

- Bumps `langgraph-prebuilt` `1.0.11` → `1.0.12`
- Bumps `langgraph` `1.1.9` → `1.1.10` (requires
`langgraph-prebuilt>=1.0.12`)
- Updates all downstream `uv.lock` files

## Changes since last release

**prebuilt (`1.0.11` → `1.0.12`)**
- fix(prebuilt): hydrate ToolNode state from channels via pregel helpers
(#7594)

**langgraph (`1.1.8` → `1.1.10`)**
- fix: don't propagate ReplayState to subgraphs on plain resume (#7561)
1.1.10 prebuilt==1.0.12 		2026-04-27 13:11:43 -04:00
William FHandGitHub d177a0db43 Revert "chore: node-level timeouts" (#7627) 
Reverts langchain-ai/langgraph#7599

I am going to implement this as an `idle_timeout` instead. I think
that's a better default behavior.
 2026-04-27 09:03:19 -07:00
Sydney RunkleandGitHub 372d54dc4f release(checkpoint): 4.0.3 (#7625) 
## Summary

Bumps `langgraph-checkpoint` `4.0.2` → `4.0.3` and updates all
downstream `uv.lock` files.

## Changes since 4.0.2

- fix(checkpoint): revive lc=2 JSON blobs for safe types without
allowlist (#7582)
- chore: dedup warnings (#7257)
- chore(deps): bump langsmith from 0.6.4 to 0.7.31 (#7525)
checkpoint==4.0.3 		2026-04-27 10:27:56 -04:00
Sydney RunkleGitHubClaude Opus 4.7
 		f4aee546ad fix(prebuilt): hydrate ToolNode state from channels via pregel helpers (#7594) 
## Summary

When `ToolNode` receives a bare `[tool_call]` list via the Send API (the
dispatch shape `create_agent` will use once langchain-ai/langchain#36960
lands), hydrate `ToolRuntime.state` from the current channel values
instead of requiring the dispatcher to inline the full agent state dict
into every `Send.arg`.

Motivation: the paired langchain PR drops the `ToolCallWithContext`
wrapper from `create_agent`'s tool dispatch, which eliminates an O(N²)
storage term on `__pregel_tasks` checkpoint writes. Without this
companion change there would be no path for the tool node to see the
graph state.

## What changed

- `libs/prebuilt/langgraph/prebuilt/tool_node.py` — `_extract_state`
grows a third branch for list-form input. When the input is a list whose
last entry is a `ToolCall` dict, read the current channel values via
`CONFIG_KEY_READ` and return them as the state dict.

The full new logic is four lines inline in `_extract_state`:

```python
read = config.get(CONF, {}).get(CONFIG_KEY_READ)
if read is None:
    return {}
# Pregel installs CONFIG_KEY_READ as
# `functools.partial(local_read, scratchpad, channels, managed, task)`.
channels = read.args[1]
return cast("dict[str, Any]", read(list(channels), False))
```

- No changes to the pregel read machinery (`local_read`, `ChannelRead`).
- Only channel values are read; managed values have their own injection
path (`ToolRuntime.context`, `InjectedContext`) and were never in the
pre-fix inlined state dict, so we don't add them here.
- Falls back to `{}` when invoked outside a Pregel context (e.g. direct
`ToolNode(...).invoke([tool_call])` from a test harness), which
preserves existing `ToolNode` direct-invocation test behavior.

- `libs/prebuilt/tests/test_on_tool_call.py` — two new tests covering
the list-form hydration path (sync + async). They build a
`functools.partial` that matches Pregel's real `CONFIG_KEY_READ` shape
and assert `ToolRuntime.state` reflects the current channel values.

## Why it's safe

- **Same snapshot semantics as before.** `Send` is emitted at
end-of-super-step-N; consumed at start-of-super-step-N+1. Channels at
that point reflect every write from super-step N (including the new
AIMessage the tool calls originated from). Parallel tool tasks in the
tools super-step all read the same values since sibling writes don't
land until end-of-super-step.
- **Legacy `ToolCallWithContext` path preserved.** External dispatchers
that still inline state continue to work unchanged — `_extract_state`
checks that branch first.

## Test plan

- [x] `make test` in `libs/prebuilt` — **204 pass**
- [x] Two new hydration tests (sync + async) green
- [x] `make format` / `make lint` / `mypy` clean

---------

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-27 09:52:23 -04:00
Sydney RunkleGitHubClaude Sonnet 4.6
 		85cd64ed69 fix(checkpoint): revive lc=2 JSON blobs for safe types without allowlist (#7582) 
## Summary

Fixes #7498 — `MESSAGE_COERCION_FAILURE` when resuming threads
checkpointed before v1.0.1.

**Root cause:** PR #6269 (v1.0.1) added an `_allowed_json_modules`
security gate to `JsonPlusSerializer._reviver`. The gate defaults to
`None`, so old `"json"`-format checkpoint blobs containing `lc=2`
constructor dicts (the pre-msgpack serialization format for pydantic
objects like `HumanMessage`) are now returned as raw dicts instead of
being reconstructed. Those raw dicts reach `add_messages →
convert_to_messages`, which sees `type="constructor"` and raises
`MESSAGE_COERCION_FAILURE`. Fresh first-turn messages are unaffected
because current `dumps_typed` only writes `"msgpack"` blobs.

**Fix:** `_reviver` now reconstructs `lc=2` blobs whose target class is
already in `SAFE_MSGPACK_TYPES` — the same curated allowlist already
used by the msgpack deserialization path (includes all standard
LangChain message types). Unknown classes are still blocked, preserving
the security intent of #6269.

## Changes

- `libs/checkpoint/langgraph/checkpoint/serde/jsonplus.py` — add
`_is_safe_json_type()` helper; update `_reviver` and
`_check_allowed_json_modules` to allow safe types without an explicit
allowlist
- `libs/checkpoint/tests/test_jsonplus.py` — two new regression tests:
safe-type `lc=2` blobs revive correctly; unknown-type `lc=2` blobs stay
blocked

## Test plan

- [ ] `test_lc2_json_safe_type_revives_without_allowlist` —
`HumanMessage`/`AIMessage` lc=2 JSON blobs round-trip to proper
`BaseMessage` objects with no allowlist configured
- [ ] `test_lc2_json_unknown_type_stays_blocked_without_allowlist` —
`pprint.pprint` lc=2 blob still returns raw dict (not reconstructed)
- [ ] `test_deserde_invalid_module` — existing behaviour unchanged
- [ ] Full `test_jsonplus.py` suite: 93/93 passing

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
 2026-04-27 09:08:47 -04:00
dependabot[bot]GitHubdependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
 		53a9806e65 chore(deps): bump nbconvert from 7.17.0 to 7.17.1 in /libs/langgraph (#7573) 
Bumps [nbconvert](https://github.com/jupyter/nbconvert) from 7.17.0 to
7.17.1.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/jupyter/nbconvert/releases">nbconvert's
releases</a>.</em></p>
<blockquote>
<h2>v7.17.1</h2>
<h2>7.17.1</h2>
<p>This is a security release, fixing two CVEs:</p>
<ul>
<li><a
href="https://github.com/jupyter/nbconvert/security/advisories/GHSA-4c99-qj7h-p3vg">CVE-2026-39377</a></li>
<li><a
href="https://github.com/jupyter/nbconvert/security/advisories/GHSA-7jqv-fw35-gmx9">CVE-2026-39378</a></li>
</ul>
<p>(full advisories will be published seven days after release, on
2026-04-14).</p>
<p>(<a
href="https://github.com/jupyter/nbconvert/compare/v7.17.0...b3b6ec01f872e9af8fd1769eb9cf1889c720ecf3">Full
Changelog</a>)</p>
<h3>Enhancements made</h3>
<ul>
<li>Allow configureable WebPDF JavaScript processing timeout <a
href="https://redirect.github.com/jupyter/nbconvert/pull/2250">#2250</a>
(<a href="https://github.com/timkpaine"><code>@​timkpaine</code></a>, <a
href="https://github.com/Carreau"><code>@​Carreau</code></a>)</li>
</ul>
<h3>Bugs fixed</h3>
<ul>
<li>Fix <code>PermissionError</code> when checking template paths on
shared filesystems <a
href="https://redirect.github.com/jupyter/nbconvert/pull/2252">#2252</a>
(<a href="https://github.com/ctcjab"><code>@​ctcjab</code></a>, <a
href="https://github.com/krassowski"><code>@​krassowski</code></a>)</li>
<li>Tweak webpdf template logic to fix duplicate extension problem <a
href="https://redirect.github.com/jupyter/nbconvert/pull/2249">#2249</a>
(<a href="https://github.com/timkpaine"><code>@​timkpaine</code></a>, <a
href="https://github.com/Carreau"><code>@​Carreau</code></a>)</li>
</ul>
<h3>Maintenance and upkeep improvements</h3>
<ul>
<li>specify python version for pre <a
href="https://redirect.github.com/jupyter/nbconvert/pull/2276">#2276</a>
(<a href="https://github.com/minrk"><code>@​minrk</code></a>, <a
href="https://github.com/krassowski"><code>@​krassowski</code></a>)</li>
</ul>
<h3>Contributors to this release</h3>
<p>The following people contributed discussions, new ideas, code and
documentation contributions, and review.
See <a
href="https://github-activity.readthedocs.io/en/latest/use/#how-does-this-tool-define-contributions-in-the-reports">our
definition of contributors</a>.</p>
<p>(<a
href="https://github.com/jupyter/nbconvert/graphs/contributors?from=2026-01-29&amp;to=2026-04-08&amp;type=c">GitHub
contributors page for this release</a>)</p>
<p><a href="https://github.com/akhmerov"><code>@​akhmerov</code></a> (<a
href="https://github.com/search?q=repo%3Ajupyter%2Fnbconvert+involves%3Aakhmerov+updated%3A2026-01-29..2026-04-08&amp;type=Issues">activity</a>)
| <a href="https://github.com/bollwyvl"><code>@​bollwyvl</code></a> (<a
href="https://github.com/search?q=repo%3Ajupyter%2Fnbconvert+involves%3Abollwyvl+updated%3A2026-01-29..2026-04-08&amp;type=Issues">activity</a>)
| <a href="https://github.com/Carreau"><code>@​Carreau</code></a> (<a
href="https://github.com/search?q=repo%3Ajupyter%2Fnbconvert+involves%3ACarreau+updated%3A2026-01-29..2026-04-08&amp;type=Issues">activity</a>)
| <a href="https://github.com/ctcjab"><code>@​ctcjab</code></a> (<a
href="https://github.com/search?q=repo%3Ajupyter%2Fnbconvert+involves%3Actcjab+updated%3A2026-01-29..2026-04-08&amp;type=Issues">activity</a>)
| <a
href="https://github.com/davidbrochart"><code>@​davidbrochart</code></a>
(<a
href="https://github.com/search?q=repo%3Ajupyter%2Fnbconvert+involves%3Adavidbrochart+updated%3A2026-01-29..2026-04-08&amp;type=Issues">activity</a>)
| <a href="https://github.com/Ken-B"><code>@​Ken-B</code></a> (<a
href="https://github.com/search?q=repo%3Ajupyter%2Fnbconvert+involves%3AKen-B+updated%3A2026-01-29..2026-04-08&amp;type=Issues">activity</a>)
| <a href="https://github.com/krassowski"><code>@​krassowski</code></a>
(<a
href="https://github.com/search?q=repo%3Ajupyter%2Fnbconvert+involves%3Akrassowski+updated%3A2026-01-29..2026-04-08&amp;type=Issues">activity</a>)
| <a href="https://github.com/mgeier"><code>@​mgeier</code></a> (<a
href="https://github.com/search?q=repo%3Ajupyter%2Fnbconvert+involves%3Amgeier+updated%3A2026-01-29..2026-04-08&amp;type=Issues">activity</a>)
| <a href="https://github.com/minrk"><code>@​minrk</code></a> (<a
href="https://github.com/search?q=repo%3Ajupyter%2Fnbconvert+involves%3Aminrk+updated%3A2026-01-29..2026-04-08&amp;type=Issues">activity</a>)
| <a href="https://github.com/mpacer"><code>@​mpacer</code></a> (<a
href="https://github.com/search?q=repo%3Ajupyter%2Fnbconvert+involves%3Ampacer+updated%3A2026-01-29..2026-04-08&amp;type=Issues">activity</a>)
| <a href="https://github.com/MSeal"><code>@​MSeal</code></a> (<a
href="https://github.com/search?q=repo%3Ajupyter%2Fnbconvert+involves%3AMSeal+updated%3A2026-01-29..2026-04-08&amp;type=Issues">activity</a>)
| <a
href="https://github.com/SylvainCorlay"><code>@​SylvainCorlay</code></a>
(<a
href="https://github.com/search?q=repo%3Ajupyter%2Fnbconvert+involves%3ASylvainCorlay+updated%3A2026-01-29..2026-04-08&amp;type=Issues">activity</a>)
| <a href="https://github.com/takluyver"><code>@​takluyver</code></a>
(<a
href="https://github.com/search?q=repo%3Ajupyter%2Fnbconvert+involves%3Atakluyver+updated%3A2026-01-29..2026-04-08&amp;type=Issues">activity</a>)
| <a href="https://github.com/timkpaine"><code>@​timkpaine</code></a>
(<a
href="https://github.com/search?q=repo%3Ajupyter%2Fnbconvert+involves%3Atimkpaine+updated%3A2026-01-29..2026-04-08&amp;type=Issues">activity</a>)</p>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/jupyter/nbconvert/blob/main/CHANGELOG.md">nbconvert's
changelog</a>.</em></p>
<blockquote>
<h2>7.17.1</h2>
<p>This is a security release, fixing two CVEs:</p>
<ul>
<li><a
href="https://github.com/jupyter/nbconvert/security/advisories/GHSA-4c99-qj7h-p3vg">CVE-2026-39377</a></li>
<li><a
href="https://github.com/jupyter/nbconvert/security/advisories/GHSA-7jqv-fw35-gmx9">CVE-2026-39378</a></li>
</ul>
<p>(full advisories will be published seven days after release, on
2026-04-14).</p>
<p>(<a
href="https://github.com/jupyter/nbconvert/compare/v7.17.0...b3b6ec01f872e9af8fd1769eb9cf1889c720ecf3">Full
Changelog</a>)</p>
<h3>Enhancements made</h3>
<ul>
<li>Allow configureable WebPDF JavaScript processing timeout <a
href="https://redirect.github.com/jupyter/nbconvert/pull/2250">#2250</a>
(<a href="https://github.com/timkpaine"><code>@​timkpaine</code></a>, <a
href="https://github.com/Carreau"><code>@​Carreau</code></a>)</li>
</ul>
<h3>Bugs fixed</h3>
<ul>
<li>Fix <code>PermissionError</code> when checking template paths on
shared filesystems <a
href="https://redirect.github.com/jupyter/nbconvert/pull/2252">#2252</a>
(<a href="https://github.com/ctcjab"><code>@​ctcjab</code></a>, <a
href="https://github.com/krassowski"><code>@​krassowski</code></a>)</li>
<li>Tweak webpdf template logic to fix duplicate extension problem <a
href="https://redirect.github.com/jupyter/nbconvert/pull/2249">#2249</a>
(<a href="https://github.com/timkpaine"><code>@​timkpaine</code></a>, <a
href="https://github.com/Carreau"><code>@​Carreau</code></a>)</li>
</ul>
<h3>Maintenance and upkeep improvements</h3>
<ul>
<li>specify python version for pre <a
href="https://redirect.github.com/jupyter/nbconvert/pull/2276">#2276</a>
(<a href="https://github.com/minrk"><code>@​minrk</code></a>, <a
href="https://github.com/krassowski"><code>@​krassowski</code></a>)</li>
</ul>
<h3>Contributors to this release</h3>
<p>The following people contributed discussions, new ideas, code and
documentation contributions, and review.
See <a
href="https://github-activity.readthedocs.io/en/latest/use/#how-does-this-tool-define-contributions-in-the-reports">our
definition of contributors</a>.</p>
<p>(<a
href="https://github.com/jupyter/nbconvert/graphs/contributors?from=2026-01-29&amp;to=2026-04-08&amp;type=c">GitHub
contributors page for this release</a>)</p>
<p><a href="https://github.com/akhmerov"><code>@​akhmerov</code></a> (<a
href="https://github.com/search?q=repo%3Ajupyter%2Fnbconvert+involves%3Aakhmerov+updated%3A2026-01-29..2026-04-08&amp;type=Issues">activity</a>)
| <a href="https://github.com/bollwyvl"><code>@​bollwyvl</code></a> (<a
href="https://github.com/search?q=repo%3Ajupyter%2Fnbconvert+involves%3Abollwyvl+updated%3A2026-01-29..2026-04-08&amp;type=Issues">activity</a>)
| <a href="https://github.com/Carreau"><code>@​Carreau</code></a> (<a
href="https://github.com/search?q=repo%3Ajupyter%2Fnbconvert+involves%3ACarreau+updated%3A2026-01-29..2026-04-08&amp;type=Issues">activity</a>)
| <a href="https://github.com/ctcjab"><code>@​ctcjab</code></a> (<a
href="https://github.com/search?q=repo%3Ajupyter%2Fnbconvert+involves%3Actcjab+updated%3A2026-01-29..2026-04-08&amp;type=Issues">activity</a>)
| <a
href="https://github.com/davidbrochart"><code>@​davidbrochart</code></a>
(<a
href="https://github.com/search?q=repo%3Ajupyter%2Fnbconvert+involves%3Adavidbrochart+updated%3A2026-01-29..2026-04-08&amp;type=Issues">activity</a>)
| <a href="https://github.com/Ken-B"><code>@​Ken-B</code></a> (<a
href="https://github.com/search?q=repo%3Ajupyter%2Fnbconvert+involves%3AKen-B+updated%3A2026-01-29..2026-04-08&amp;type=Issues">activity</a>)
| <a href="https://github.com/krassowski"><code>@​krassowski</code></a>
(<a
href="https://github.com/search?q=repo%3Ajupyter%2Fnbconvert+involves%3Akrassowski+updated%3A2026-01-29..2026-04-08&amp;type=Issues">activity</a>)
| <a href="https://github.com/mgeier"><code>@​mgeier</code></a> (<a
href="https://github.com/search?q=repo%3Ajupyter%2Fnbconvert+involves%3Amgeier+updated%3A2026-01-29..2026-04-08&amp;type=Issues">activity</a>)
| <a href="https://github.com/minrk"><code>@​minrk</code></a> (<a
href="https://github.com/search?q=repo%3Ajupyter%2Fnbconvert+involves%3Aminrk+updated%3A2026-01-29..2026-04-08&amp;type=Issues">activity</a>)
| <a href="https://github.com/mpacer"><code>@​mpacer</code></a> (<a
href="https://github.com/search?q=repo%3Ajupyter%2Fnbconvert+involves%3Ampacer+updated%3A2026-01-29..2026-04-08&amp;type=Issues">activity</a>)
| <a href="https://github.com/MSeal"><code>@​MSeal</code></a> (<a
href="https://github.com/search?q=repo%3Ajupyter%2Fnbconvert+involves%3AMSeal+updated%3A2026-01-29..2026-04-08&amp;type=Issues">activity</a>)
| <a
href="https://github.com/SylvainCorlay"><code>@​SylvainCorlay</code></a>
(<a
href="https://github.com/search?q=repo%3Ajupyter%2Fnbconvert+involves%3ASylvainCorlay+updated%3A2026-01-29..2026-04-08&amp;type=Issues">activity</a>)
| <a href="https://github.com/takluyver"><code>@​takluyver</code></a>
(<a
href="https://github.com/search?q=repo%3Ajupyter%2Fnbconvert+involves%3Atakluyver+updated%3A2026-01-29..2026-04-08&amp;type=Issues">activity</a>)
| <a href="https://github.com/timkpaine"><code>@​timkpaine</code></a>
(<a
href="https://github.com/search?q=repo%3Ajupyter%2Fnbconvert+involves%3Atimkpaine+updated%3A2026-01-29..2026-04-08&amp;type=Issues">activity</a>)</p>
<!-- raw HTML omitted -->
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/jupyter/nbconvert/commit/78ed30837a607deab7cf0a12dca072bf3f63417a"><code>78ed308</code></a>
Publish 7.17.1</li>
<li><a
href="https://github.com/jupyter/nbconvert/commit/f090a64606fde4c7f87cbf478f51b4aa46a425ec"><code>f090a64</code></a>
ruff format</li>
<li><a
href="https://github.com/jupyter/nbconvert/commit/b3b6ec01f872e9af8fd1769eb9cf1889c720ecf3"><code>b3b6ec0</code></a>
chore: update pre-commit hooks (<a
href="https://redirect.github.com/jupyter/nbconvert/issues/2277">#2277</a>)</li>
<li><a
href="https://github.com/jupyter/nbconvert/commit/be4841f7da51c499b1937e41e6e71926dbe0daa3"><code>be4841f</code></a>
ignore silly security lint in tests</li>
<li><a
href="https://github.com/jupyter/nbconvert/commit/26d57b295870f5572d9bd0535acee4a120339c10"><code>26d57b2</code></a>
fix type annotation on Lexer</li>
<li><a
href="https://github.com/jupyter/nbconvert/commit/0e6b8ccabf2aca6c18fac8c574f22b7155f441fb"><code>0e6b8cc</code></a>
Merge commit from fork</li>
<li><a
href="https://github.com/jupyter/nbconvert/commit/ba5e5cdd737704388251fa55fa9e58f5752fa39d"><code>ba5e5cd</code></a>
Merge commit from fork</li>
<li><a
href="https://github.com/jupyter/nbconvert/commit/1db0c88d865146ce02b6405a8d96753d3d0cd0c2"><code>1db0c88</code></a>
Specify python version for pre (<a
href="https://redirect.github.com/jupyter/nbconvert/issues/2276">#2276</a>)</li>
<li><a
href="https://github.com/jupyter/nbconvert/commit/7473fc3037a6317bff54380e3a7162d73bf089b3"><code>7473fc3</code></a>
chore: update pre-commit hooks (<a
href="https://redirect.github.com/jupyter/nbconvert/issues/2242">#2242</a>)</li>
<li><a
href="https://github.com/jupyter/nbconvert/commit/4322f7f290694929f414cefadc942111afad3762"><code>4322f7f</code></a>
Bump the actions group across 1 directory with 2 updates (<a
href="https://redirect.github.com/jupyter/nbconvert/issues/2273">#2273</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/jupyter/nbconvert/compare/v7.17.0...v7.17.1">compare
view</a></li>
</ul>
</details>
<br />


[![Dependabot compatibility
score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=nbconvert&package-manager=uv&previous-version=7.17.0&new-version=7.17.1)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)

Dependabot will resolve any conflicts with this PR as long as you don't
alter it yourself. You can also trigger a rebase manually by commenting
`@dependabot rebase`.

[//]: # (dependabot-automerge-start)
[//]: # (dependabot-automerge-end)

---

<details>
<summary>Dependabot commands and options</summary>
<br />

You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
- `@dependabot recreate` will recreate this PR, overwriting any edits
that have been made to it
- `@dependabot show <dependency name> ignore conditions` will show all
of the ignore conditions of the specified dependency
- `@dependabot ignore this major version` will close this PR and stop
Dependabot creating any more for this major version (unless you reopen
the PR or upgrade to it yourself)
- `@dependabot ignore this minor version` will close this PR and stop
Dependabot creating any more for this minor version (unless you reopen
the PR or upgrade to it yourself)
- `@dependabot ignore this dependency` will close this PR and stop
Dependabot creating any more for this dependency (unless you reopen the
PR or upgrade to it yourself)
You can disable automated security fix PRs for this repo from the
[Security Alerts
page](https://github.com/langchain-ai/langgraph/network/alerts).

</details>

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
 2026-04-24 20:30:47 -07:00
dependabot[bot]GitHubdependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
 		219fbbe8d0 chore(deps): bump python-dotenv from 1.2.1 to 1.2.2 in /libs/langgraph (#7574) 
Bumps [python-dotenv](https://github.com/theskumar/python-dotenv) from
1.2.1 to 1.2.2.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/theskumar/python-dotenv/releases">python-dotenv's
releases</a>.</em></p>
<blockquote>
<h2>v1.2.2</h2>
<h3>Added</h3>
<ul>
<li>Support for Python 3.14, including the free-threaded (3.14t) build.
(#)</li>
</ul>
<h3>Changed</h3>
<ul>
<li>The <code>dotenv run</code> command now forwards flags directly to
the specified command by <a
href="https://github.com/bbc2"><code>@​bbc2</code></a> in <a
href="https://redirect.github.com/theskumar/python-dotenv/pull/607">theskumar/python-dotenv#607</a></li>
<li>Improved documentation clarity regarding override behavior and the
reference page.</li>
<li>Updated PyPy support to version 3.11.</li>
<li>Documentation for FIFO file support.</li>
<li>Support for Python 3.9.</li>
</ul>
<h3>Fixed</h3>
<ul>
<li>Improved <code>set_key</code> and <code>unset_key</code> behavior
when interacting with symlinks by <a
href="https://github.com/bbc2"><code>@​bbc2</code></a> in <a
href="https://github.com/theskumar/python-dotenv/commit/790c5c02991100aa1bf41ee5330aca75edc51311">#790c5</a></li>
<li>Corrected the license specifier and added missing Python 3.14
classifiers in package metadata by <a
href="https://github.com/JYOuyang"><code>@​JYOuyang</code></a> in <a
href="https://redirect.github.com/theskumar/python-dotenv/pull/590">theskumar/python-dotenv#590</a></li>
</ul>
<h3>Breaking Changes</h3>
<ul>
<li>
<p><code>dotenv.set_key</code> and <code>dotenv.unset_key</code> used to
follow symlinks in some
situations. This is no longer the case. For that behavior to be restored
in
all cases, <code>follow_symlinks=True</code> should be used.</p>
</li>
<li>
<p>In the CLI, <code>set</code> and <code>unset</code> used to follow
symlinks in some situations. This
is no longer the case.</p>
</li>
<li>
<p><code>dotenv.set_key</code>, <code>dotenv.unset_key</code> and the
CLI commands <code>set</code> and <code>unset</code>
used to reset the file mode of the modified .env file to
<code>0o600</code> in some
situations. This is no longer the case: The original mode of the file is
now
preserved. Is the file needed to be created or wasn't a regular file,
mode
<code>0o600</code> is used.</p>
</li>
</ul>
<h3>Misc</h3>
<ul>
<li>skip 000 permission tests for root user by <a
href="https://github.com/burnout-projects"><code>@​burnout-projects</code></a>
in <a
href="https://redirect.github.com/theskumar/python-dotenv/pull/561">theskumar/python-dotenv#561</a></li>
<li>Bump actions/checkout from 5 to 6 in the github-actions group by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/theskumar/python-dotenv/pull/593">theskumar/python-dotenv#593</a></li>
<li>Add Windows testing to CI by <a
href="https://github.com/bbc2"><code>@​bbc2</code></a> in <a
href="https://redirect.github.com/theskumar/python-dotenv/pull/604">theskumar/python-dotenv#604</a></li>
<li>Improve workflow efficiency with best practices by <a
href="https://github.com/theskumar"><code>@​theskumar</code></a> in <a
href="https://redirect.github.com/theskumar/python-dotenv/pull/609">theskumar/python-dotenv#609</a></li>
<li>Remove the use of <code>sh</code> in tests by <a
href="https://github.com/bbc2"><code>@​bbc2</code></a> in <a
href="https://redirect.github.com/theskumar/python-dotenv/pull/612">theskumar/python-dotenv#612</a></li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a href="https://github.com/JYOuyang"><code>@​JYOuyang</code></a>
made their first contribution in <a
href="https://redirect.github.com/theskumar/python-dotenv/pull/590">theskumar/python-dotenv#590</a></li>
<li><a
href="https://github.com/burnout-projects"><code>@​burnout-projects</code></a>
made their first contribution in <a
href="https://redirect.github.com/theskumar/python-dotenv/pull/561">theskumar/python-dotenv#561</a></li>
<li><a
href="https://github.com/cpackham-atlnz"><code>@​cpackham-atlnz</code></a>
made their first contribution in <a
href="https://redirect.github.com/theskumar/python-dotenv/pull/597">theskumar/python-dotenv#597</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/theskumar/python-dotenv/compare/v1.2.1...v1.2.2">https://github.com/theskumar/python-dotenv/compare/v1.2.1...v1.2.2</a></p>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/theskumar/python-dotenv/blob/main/CHANGELOG.md">python-dotenv's
changelog</a>.</em></p>
<blockquote>
<h2>[1.2.2] - 2026-03-01</h2>
<h3>Added</h3>
<ul>
<li>Support for Python 3.14, including the free-threaded (3.14t) build.
(<a
href="https://redirect.github.com/theskumar/python-dotenv/issues/588">#588</a>)</li>
</ul>
<h3>Changed</h3>
<ul>
<li>The <code>dotenv run</code> command now forwards flags directly to
the specified command by [<a
href="https://github.com/bbc2"><code>@​bbc2</code></a>] in <a
href="https://redirect.github.com/theskumar/python-dotenv/issues/607">#607</a></li>
<li>Improved documentation clarity regarding override behavior and the
reference page.</li>
<li>Updated PyPy support to version 3.11.</li>
<li>Documentation for FIFO file support.</li>
<li>Dropped Support for Python 3.9.</li>
</ul>
<h3>Fixed</h3>
<ul>
<li>Improved <code>set_key</code> and <code>unset_key</code> behavior
when interacting with symlinks by [<a
href="https://github.com/bbc2"><code>@​bbc2</code></a>] in
[790c5c0]</li>
<li>Corrected the license specifier and added missing Python 3.14
classifiers in package metadata by [<a
href="https://github.com/JYOuyang"><code>@​JYOuyang</code></a>] in <a
href="https://redirect.github.com/theskumar/python-dotenv/issues/590">#590</a></li>
</ul>
<h3>Breaking Changes</h3>
<ul>
<li>
<p><code>dotenv.set_key</code> and <code>dotenv.unset_key</code> used to
follow symlinks in some
situations. This is no longer the case. For that behavior to be restored
in
all cases, <code>follow_symlinks=True</code> should be used.</p>
</li>
<li>
<p>In the CLI, <code>set</code> and <code>unset</code> used to follow
symlinks in some situations. This
is no longer the case.</p>
</li>
<li>
<p><code>dotenv.set_key</code>, <code>dotenv.unset_key</code> and the
CLI commands <code>set</code> and <code>unset</code>
used to reset the file mode of the modified .env file to
<code>0o600</code> in some
situations. This is no longer the case: The original mode of the file is
now
preserved. Is the file needed to be created or wasn't a regular file,
mode
<code>0o600</code> is used.</p>
</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/theskumar/python-dotenv/commit/36004e0e34be7665ff2b11a8a4005144f76f176d"><code>36004e0</code></a>
Bump version: 1.2.1 → 1.2.2</li>
<li><a
href="https://github.com/theskumar/python-dotenv/commit/eb202520e5933c9daf42501e1e42fdb0144002c8"><code>eb20252</code></a>
docs: update changelog for v1.2.2</li>
<li><a
href="https://github.com/theskumar/python-dotenv/commit/790c5c02991100aa1bf41ee5330aca75edc51311"><code>790c5c0</code></a>
Merge commit from fork</li>
<li><a
href="https://github.com/theskumar/python-dotenv/commit/43340da220fb4ca4f95357bbe21a3c7f8f1278b1"><code>43340da</code></a>
Remove the use of <code>sh</code> in tests (<a
href="https://redirect.github.com/theskumar/python-dotenv/issues/612">#612</a>)</li>
<li><a
href="https://github.com/theskumar/python-dotenv/commit/09d7cee32459e7abdcb5c9d8122a552589c06a9c"><code>09d7cee</code></a>
docs: clarify override behavior and document FIFO support (<a
href="https://redirect.github.com/theskumar/python-dotenv/issues/610">#610</a>)</li>
<li><a
href="https://github.com/theskumar/python-dotenv/commit/c8de2887c00198c22842c5ae5e92d1747467363c"><code>c8de288</code></a>
ci: improve workflow efficiency with best practices (<a
href="https://redirect.github.com/theskumar/python-dotenv/issues/609">#609</a>)</li>
<li><a
href="https://github.com/theskumar/python-dotenv/commit/7bd9e3dbfedc0983ad7d56d5570013035242bdf4"><code>7bd9e3d</code></a>
Add Windows testing to CI (<a
href="https://redirect.github.com/theskumar/python-dotenv/issues/604">#604</a>)</li>
<li><a
href="https://github.com/theskumar/python-dotenv/commit/1baaf04f336072e0ee324d5df9563ec767f14f81"><code>1baaf04</code></a>
Drop Python 3.9 support and update to PyPy 3.11 (<a
href="https://redirect.github.com/theskumar/python-dotenv/issues/608">#608</a>)</li>
<li><a
href="https://github.com/theskumar/python-dotenv/commit/4a22cf8993804aeede0c20b75bb1a29d3a99e9dc"><code>4a22cf8</code></a>
ci: enable testing on Python 3.14t (free-threaded) (<a
href="https://redirect.github.com/theskumar/python-dotenv/issues/588">#588</a>)</li>
<li><a
href="https://github.com/theskumar/python-dotenv/commit/e2e8e776b42e382ae38b44d3982dd649e7507dd4"><code>e2e8e77</code></a>
Fix license specifier (<a
href="https://redirect.github.com/theskumar/python-dotenv/issues/597">#597</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/theskumar/python-dotenv/compare/v1.2.1...v1.2.2">compare
view</a></li>
</ul>
</details>
<br />


[![Dependabot compatibility
score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=python-dotenv&package-manager=uv&previous-version=1.2.1&new-version=1.2.2)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)

Dependabot will resolve any conflicts with this PR as long as you don't
alter it yourself. You can also trigger a rebase manually by commenting
`@dependabot rebase`.

[//]: # (dependabot-automerge-start)
[//]: # (dependabot-automerge-end)

---

<details>
<summary>Dependabot commands and options</summary>
<br />

You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
- `@dependabot recreate` will recreate this PR, overwriting any edits
that have been made to it
- `@dependabot show <dependency name> ignore conditions` will show all
of the ignore conditions of the specified dependency
- `@dependabot ignore this major version` will close this PR and stop
Dependabot creating any more for this major version (unless you reopen
the PR or upgrade to it yourself)
- `@dependabot ignore this minor version` will close this PR and stop
Dependabot creating any more for this minor version (unless you reopen
the PR or upgrade to it yourself)
- `@dependabot ignore this dependency` will close this PR and stop
Dependabot creating any more for this dependency (unless you reopen the
PR or upgrade to it yourself)
You can disable automated security fix PRs for this repo from the
[Security Alerts
page](https://github.com/langchain-ai/langgraph/network/alerts).

</details>

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
 2026-04-24 20:30:29 -07:00
William FHGitHubWill Fu-Hinthorn
 		aeff9549c2 chore: node-level timeouts (#7599) 
This PR implements task/node-level timeouts. 

Since python has a terrible multi-processing model, we make two
concessions:
- we only support for async functions/nodes. Sync nodes with a timeout
raise an error at compile time
- we implement this with asyncio wait_for in the async path.
 
Each timed attempt is wrapped in _retry.py, and the timer is reset on
each node-level retry. When the deadline is exceeded LangGraph raises
NodeTimeoutError, clears buffered writes, and prevents any late writes
or child-task scheduling from leaking past the timeout via
_TimedAttemptScope.

The design also adds a timed-attempt observer hook
(CONFIG_KEY_TIMED_ATTEMPT_OBSERVER) that emits start/finish events with
identifiers and deadlines. This means that if you have an orchestrating
process starting a worker process, it can listen to start/end events and
hard-kill the process to enforce a timeout if there is a deadlock.

---------

Co-authored-by: Will Fu-Hinthorn <will@langchain.dev>
 2026-04-24 18:27:22 -07:00
ccurmeandGitHub 1a248cba45 release(prebuilt): 1.0.11 (#7610) prebuilt==1.0.11 2026-04-24 14:16:17 -04:00
Sydney Runkle 0ae81f3cff format, lint, restructure 2026-04-24 07:46:57 -04:00
Sydney Runkle afec98f369 internal for now 2026-04-24 07:29:52 -04:00
Hunter LovellGitHubSydney Runkle
 		45246f6c74 feat(prebuilt): allow ToolNode tools to return list[Command | ToolMessage] (#7596) 
## Summary

Extends `ToolNode` so that a single tool invocation can return
`list[Command | ToolMessage]` instead of only a single `Command` or
`ToolMessage`. This brings `ToolNode`'s per-tool-call contract in line
with the rest of LangGraph, where nodes can already return multiple
Commands.

Depends on langchain-ai/langchain#36963 which allows
`list[ToolOutputMixin]` to pass through `BaseTool._format_output`
unchanged.

## Changes

### `libs/prebuilt/langgraph/prebuilt/tool_node.py`

**New list-return gate in `_execute_tool_sync` / `_execute_tool_async`**
— After the existing `Command` and `ToolMessage` checks, a new branch
accepts `list[Command | ToolMessage]` and routes it through
`_validate_tool_command_list`. Lists with non-`Command`/`ToolMessage`
elements raise `TypeError`. Both sync and async paths are updated
symmetrically.

**`_validate_tool_command_list`** — Enforces the terminating-ToolMessage
rule: exactly one `ToolMessage` in the list must carry `tool_call_id ==
<outer_id>` (top-level or nested inside a `Command.update["messages"]`).
Zero or multiple terminators raise `_MissingToolMessageError`.
Individual Commands in the list are validated via the existing
`_validate_tool_command`; when a Command lacks the terminator (which is
allowed since the list-level check handles it), the
`_MissingToolMessageError` is caught and the already-normalized command
from the exception is used.

**`_MissingToolMessageError`** — A `ValueError` subclass raised by
`_validate_tool_command` (and `_validate_tool_command_list`) when no
matching `ToolMessage` is found. Carries the already-normalized command
so callers can recover without re-doing deepcopy/message-conversion
work. Using a typed exception avoids brittle string-matching on error
messages.

**`_combine_tool_outputs`** — Flattens list entries at the top of the
method so downstream combiner logic (parent-`goto` accumulation,
ToolMessage wrapping) is unchanged.

**Response processing moved inside try/except** — In both sync and async
execute methods, the response validation (Command/ToolMessage/list
checks) now runs inside the existing error-handling try block, so
validation errors from the list path go through `_handle_tool_errors`
like other tool errors.

**Return type signatures** widened on `_execute_tool_sync`,
`_execute_tool_async`, `_run_one`, `_arun_one` to include `list[Command
| ToolMessage]`.

### `libs/prebuilt/tests/test_tool_node.py`

New tests covering: valid list returns (top-level terminator, nested
terminator, parent-goto + terminator), regression tests for single
Command/ToolMessage returns, invalid cases (no terminator, multiple
terminators), async parity, integration with mixed list/non-list tool
calls, and `_handle_tool_errors` interaction.

---------

Co-authored-by: Sydney Runkle <sydneymarierunkle@gmail.com>
 2026-04-23 13:37:45 -07:00
Sydney RunkleandClaude Opus 4.7 f25d1935ef fix(postgres): handle missing checkpoint_id in _get_channel_writes_history; update test signatures 
Two fixes exposed by running the postgres test suite against a local
postgres instance:

1. `PostgresSaver._get_channel_writes_history` /
   `AsyncPostgresSaver._aget_channel_writes_history` required
   `checkpoint_id` in the passed config, raising `KeyError` when called
   with just `thread_id` (e.g. `graph.aget_state({"thread_id": "..."})`).
   Now resolves to the latest checkpoint via `get_tuple`/`aget_tuple`
   when the id is missing.

2. `test_get_checkpoint_no_channel_values` (sync + async) monkeypatched
   `_load_checkpoint_tuple` with the old `(value, cur)` signature. Method
   now takes `(value)` only since delta reconstruction moved out of the
   tuple-load path — updated both tests.

Local postgres (`brew install pgvector postgresql@16`, running on port
5441) now exercises all 40 non-vector postgres tests green.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-23 14:47:22 -04:00
Sydney RunkleandClaude Opus 4.7 3a7ed5b454 refactor(delta-channel): honest data model, private experimental API 
Restructure DeltaChannel reconstruction so the hydration path matches
pregel's storage axes (blobs + writes) without leaking internal DTOs
into the public checkpoint contract.

Key changes:

* Deleted `DeltaChannelWrites` dataclass and `SEED_UNSET` sentinel.
  Reconstruction data no longer flows through `Checkpoint.channel_values`
  as a wrapped DTO — that field now carries a value or `DELTA_SENTINEL`,
  never a reconstruction shape.
* Added private `_ChannelWritesHistory(seed: Any, writes: list[PendingWrite])`
  NamedTuple as the return type for the new storage-level query.
* Added private, experimental `_get_channel_writes_history` /
  `_aget_channel_writes_history` on `BaseCheckpointSaver` — reference
  impl via `get_tuple` + `parent_config` walk, overridden on
  `InMemorySaver` / `PostgresSaver` / `AsyncPostgresSaver` for perf.
  Fixes a latent migration bug in the base fallback (now inspects
  ancestor `channel_values` for pre-delta seed).
* `DeltaChannel.from_checkpoint(seed)` simplified to two cases
  (sentinel/MISSING → empty, else → seed). New `replay_writes` method
  folds `list[PendingWrite]` through the reducer.
* Delta hydration consolidated inside `channels_from_checkpoint` via
  optional `saver` + `config` kwargs (+ async mirror
  `achannels_from_checkpoint`). All six pregel call sites updated.
  `get_tuple` no longer patches `channel_values` — removed
  `_resolve_delta_channels` (memory) and per-tuple reconstruction from
  `_load_checkpoint_tuple` (postgres sync + async).
* Hydration short-circuits on the target's own blob: if
  `channel_values[k]` is a real value (pre-migration tip, `update_state`
  result), use it directly. Only walks ancestors when the target holds
  sentinel or is missing. Fixes a correctness bug where migration-tip
  and `update_state` values would be lost.
* New test_delta_channel_migration.py: 10 scenarios covering
  BinaryOperatorAggregate → DeltaChannel migration (basic + async,
  time-travel, fork, `update_state`, tip-of-pre-migration, base-saver
  fallback parity, cross-thread isolation).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-23 14:15:02 -04:00
Sydney Runkle 31ef0e942a refactor(delta-channel): drop snapshot_every and saver Overwrite terminator 
snapshot_every was a knob for bounding reconstruction cost on deep threads.
Benchmarks (notes/add_messages_replay_problem.md + scratch work on
sr/add-messages-replay-bench) showed the add_messages fast-path
(optimize/add-messages-fast-path) closes the quadratic replay cost for
threads under ~1000 turns, where the crossover to snapshots makes sense.
For deeper threads we'll ship a first-class compaction primitive instead.

Removals:

* DeltaChannel: snapshot_every ctor param, _writes_since_snapshot counter,
  should_snapshot() / snapshot_write() methods, counter threading through
  _apply_write / update / from_checkpoint / copy.
* Pregel loop: post-checkpoint snapshot-injection block and
  SNAPSHOT_TASK_ID import + constant.
* Checkpoint base: _overwrite_types() helper and the ancestor-walk
  short-circuit on user-emitted Overwrite in sync + async
  get_channel_writes.
* InMemory + Postgres savers: same walk-terminator shortcut. The
  pre-delta blob terminator (seed-from-ancestor-blob) stays — it's
  required for migration correctness, not a snapshot optimization.
* Tests for all of the above.

Preserved:

* Channel-level Overwrite semantics in DeltaChannel / BinOpAggregate:
  Overwrite still resets the value at reducer level; same-super-step
  dedup and InvalidUpdateError on multiple Overwrites still enforced.
* Pre-delta migration seeding.
 2026-04-23 09:54:12 -04:00
Sydney Runkle d120f127ca refactor(delta-channel): plain SELECT WHERE replaces recursive CTE 
The recursive CTE was bottlenecked by a JSON-expression join
(`bl.version = checkpoint->'channel_versions'->>bl.channel`) that the
planner could not index, producing an O(ancestors x blobs) nested-loop.
At depth 1000 it ran ~275 ms and removed ~2M filter rows; the recursion
itself was 2.4 ms.

Switch to three plain indexed SELECTs per delta channel
(checkpoints, checkpoint_writes, checkpoint_blobs); a pure helper on
BasePostgresSaver walks the parent chain and assembles
DeltaChannelWrites. Sync (__init__.py) and async (aio.py) each own
their three-roundtrip I/O wrappers.

Bench numbers (notes/delta_channel_query_bench.md): 3x at depth 50,
15x at depth 200, ~100x at depth 1000. Plain over-fetches sibling rows
when the thread branches but still wins at every realistic depth on
both local and remote postgres.

Multi-channel coalescing dropped — reconstruction is per-channel now.
Same shape as InMemorySaver. Can come back as a SQL-level
optimization later if needed.
 2026-04-23 08:21:00 -04:00
Sydney Runkle 9e330c96dc contextvar 2026-04-23 07:42:51 -04:00
Sydney RunkleandClaude Opus 4.7 cd8fad5905 fix(delta-channel): target-exclusion, pre-delta seed, one-query postgres walk 
Four fixes from an independent review of the reconstruction pipeline, plus
a structural cleanup:

1. Ancestor walk excludes the target checkpoint itself (matches pregel:
   writes stored under checkpoint_id=T are pending for the NEXT step and
   applied separately via apply_writes). Memory saver previously included
   them, diverging from Postgres and causing pending writes to be folded
   into the reconstructed snapshot — visible via get_state during
   interrupts and time-travel into a non-leaf checkpoint.

2. Pre-delta blob terminator. When the walk hits an ancestor whose blob
   for the channel is a real value (not DELTA_SENTINEL), bind that blob
   as DeltaChannelWrites.seed and stop. Without this, threads migrated
   from pre-delta storage would replay ancestor writes to the root
   forever AND lose any value that lived only in the old blob
   (e.g. from update_state). Per-ancestor, the blob is checked BEFORE
   its writes — a pre-delta blob subsumes writes at the same checkpoint,
   so including them would double-count.

3. Base-fallback get_channel_writes follows parent_checkpoint_id instead
   of list(before=...). The previous form returned every tuple with
   id<target, including sibling branches on forked threads.

4. seed replaces the Overwrite-wrapping hack for pre-delta values.
   DeltaChannelWrites(writes, seed=SEED_UNSET) makes the saver's
   reconstruction terminator semantically explicit; drops the lazy
   _make_overwrite import dance. User-emitted Overwrite still reset the
   chain via _apply_write as before.

Postgres: recursive CTE enumerates on-path ancestors and joins once
against checkpoint_writes and once against checkpoint_blobs for every
delta channel in the get_tuple — one roundtrip instead of the previous
3 queries × N channels.

Tests added:
- Pre-delta blob seeding (seed binding, no double-counting of ancestor
  writes at the terminator, pending-at-target excluded).
- Root checkpoint returns empty writes.
- Seed-based from_checkpoint replay (three scenarios: with writes,
  seed-only, seed=None distinct from SEED_UNSET).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-22 22:09:08 -04:00
Sydney Runkle acc7eda8c5 optimizations i sure hope 2026-04-22 20:47:51 -04:00
Sydney Runkle 5b7fdf5655 eh 2026-04-22 18:41:06 -04:00
Sydney RunkleandClaude Opus 4.7 4cad68f767 fix(delta-channel): unwrap NotRequired[X] for dict/set reducers 
Annotated[NotRequired[dict[...]], DeltaChannel(reducer)] (the shape used
by deepagents' filesystem middleware) fell through type inference to
`list`, so the first operator call blew up with
"'list' object is not a mapping". `_is_field_channel` now unwraps a
parameterized Required[X]/NotRequired[X] before stripping extras, which
lets dict/set/mapping outer types reach the abc normalization block.

Also type-annotates the `new` locals in DeltaChannel.copy() and
from_checkpoint() so mypy can infer them through the abstract return
type.

Adds tests covering: dict Overwrite in update and in writes replay,
snapshot_write with a dict reducer, dict backwards-compat checkpoints,
NotRequired type inference, and a filesystem-shaped end-to-end graph.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-22 17:58:36 -04:00
Sydney Runkle 9d8c0be068 arbitrary 2026-04-22 17:54:12 -04:00