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Author SHA1 Message Date
Sydney RunkleandClaude Sonnet 4.6 baa748e81b chore: apply format/lint fixes across checkpoint, checkpoint-postgres, prebuilt 
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
 2026-04-30 14:49:05 -04:00
Sydney RunkleandClaude Sonnet 4.6 2d39d536fe fix: register DeltaValue in SAFE_MSGPACK_TYPES; rename _is_diff_delta; cross-saver benchmark 
- Add DeltaValue to SAFE_MSGPACK_TYPES so SQLite and other msgpack-based
  savers don't emit "Deserializing unregistered type" warnings.
- Rename _is_diff_delta → _is_delta_value (leftover from DiffChannel rename).
- Parametrize benchmark by checkpointer: runs InMemory (fast-path) and
  SQLite (get_tuple fallback) in the same table, sharing the _run_turns helper.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
 2026-04-30 14:49:05 -04:00
Sydney RunkleandClaude Sonnet 4.6 c07f081e4c fix(delta-channel): fix chain assembly and get_state paths 
- Fix InMemorySaver.get_channel_blob: use correct storage[thread_id][ns]
  nesting and deserialize the checkpoint before extracting channel_versions.
- Pass checkpoint_id to after_checkpoint() in channels_from_checkpoint so
  DeltaChannel seeds _last_checkpoint_id correctly on load; without this
  every turn broke the chain at its boundary.
- Wire _assemble_delta_channels into _prepare_state_snapshot and
  _aprepare_state_snapshot (get_state / get_state_history paths) and into
  perform_superstep / aperform_superstep (update_state paths) — previously
  only the loop __enter__ path did assembly.
- Fix test_get_channel_blob to use the correct storage structure.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
 2026-04-30 14:49:05 -04:00
Sydney Runkle 549b974e48 test(channels): replace unsupported-saver raise test with fallback assembly test 2026-04-30 14:49:05 -04:00
Sydney Runkle f083877fde feat(postgres): remove _load_diff_chains; add get_channel_blob / aget_channel_blob 2026-04-30 14:44:39 -04:00
Sydney Runkle 6df84d7421 feat(memory): implement get_channel_blob; remove diff handling from _load_blobs 2026-04-30 14:44:39 -04:00
Sydney Runkle fe783a53f0 feat(pregel): wire DeltaChannel assembly into loop; pass checkpoint_id to after_checkpoint 2026-04-30 14:44:39 -04:00
Sydney Runkle c2da9788c3 feat(pregel): add _assemble_delta_channels helpers for universal DeltaChannel support 2026-04-30 14:44:39 -04:00
Sydney RunkleandClaude Sonnet 4.6 683e0bb89d feat(channels): DeltaChannel tracks checkpoint_id; emits prev_checkpoint_id in DeltaValue 
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
 2026-04-30 14:44:39 -04:00
Sydney RunkleandClaude Sonnet 4.6 5169786ded feat(serde): diff type encodes prev_checkpoint_id; loads_typed returns DeltaValue 
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
 2026-04-30 14:44:39 -04:00
Sydney Runkle aa312d18e1 docs(checkpoint): expand aget_channel_blob docstring for parity 2026-04-30 14:44:39 -04:00
Sydney Runkle db33a67804 chore: add .worktrees/ to .gitignore 2026-04-30 14:44:39 -04:00
Sydney Runkle f41dfb292c feat(checkpoint): DeltaValue uses prev_checkpoint_id; add get_channel_blob stubs 2026-04-30 14:44:39 -04:00
Sydney Runkle ea3e595379 chore: rename DiffChannel/DiffDelta/DiffChainValue to Delta* across libs 
Renames the diff-channel types to DeltaChannel, DeltaValue, and DeltaChainValue
for consistency with the settled naming convention.
 2026-04-30 14:44:39 -04:00
Sydney Runkle 3ea6da3771 more tests 2026-04-30 14:44:39 -04:00
Sydney RunkleandClaude Sonnet 4.6 8f776498e9 chore: format/lint fixes for rehydrate_every benchmark 
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
 2026-04-30 14:44:39 -04:00
Sydney RunkleandClaude Sonnet 4.6 f53ae61576 feat(channels): add rehydrate_every to DiffChannel for bounded chain traversal 
Periodic full-snapshot checkpoints cap chain depth, trading a small
amount of extra storage for bounded reconstruction time.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
 2026-04-30 14:44:39 -04:00
Sydney RunkleandClaude Sonnet 4.6 4856c89b30 test(channels): add DiffChannel vs BinaryOperatorAggregate storage/time benchmark 
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
 2026-04-30 14:44:39 -04:00
Sydney RunkleandClaude Sonnet 4.6 800a2151ba chore: format and lint fixes for DiffChannel implementation 
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
 2026-04-30 14:44:39 -04:00
Sydney RunkleandClaude Sonnet 4.6 d5507cb53c fix(checkpoint/postgres): pass cursor to avoid deadlock in diff chain traversal 
Fixes a critical deadlock that occurs when _load_diff_chains calls self._cursor()
from within _load_blobs while the outer _load_checkpoint_tuple already holds
self._cursor(). On bare (non-pool) connections, the threading.Lock is not
reentrant, causing a deadlock.

Solution: Pass the cursor as a parameter to _load_diff_chains and _load_blobs
instead of acquiring a new cursor within those methods. Updated _load_checkpoint_tuple
to acquire a cursor once at the top level and pass it through the call chain.

Changes:
- Updated _load_blobs signature to accept optional cur parameter
- Updated _load_diff_chains signature (base and implementations) to accept optional cur parameter
- Modified _load_checkpoint_tuple in PostgresSaver to acquire cursor and pass it
- Modified _load_checkpoint_tuple_async to acquire cursor only when diff_payloads exist
- Removed nested self._cursor() calls in _load_diff_chains and _load_diff_chains_async

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
 2026-04-30 14:44:39 -04:00
Sydney RunkleandClaude Sonnet 4.6 afc2e12201 feat(checkpoint/postgres): diff chain reconstruction in async saver 
Add `_load_diff_chains_async` to `AsyncPostgresSaver` and override
`_load_checkpoint_tuple` to inline blob-parsing and diff-chain
resolution via async point-lookup traversal, mirroring the sync
`PostgresSaver._load_diff_chains` implementation. Add integration test
`test_diff_channel_chain_reconstruction` that skips gracefully when
`langgraph` core is not installed.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
 2026-04-30 14:44:39 -04:00
Sydney RunkleandClaude Sonnet 4.6 f5b27e8cda feat(checkpoint/postgres): diff chain reconstruction in _load_blobs (sync) 
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
 2026-04-30 14:44:39 -04:00
Sydney RunkleandClaude Sonnet 4.6 a7b6dd159c test(pregel): strengthen DiffChannel time-travel and reply assertions 
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
 2026-04-30 14:44:38 -04:00
Sydney RunkleandClaude Sonnet 4.6 5baa791b82 feat(pregel): call after_checkpoint hook when loading and saving channels 
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
 2026-04-30 14:44:38 -04:00
Sydney RunkleandClaude Sonnet 4.6 b57ff79f4b fix(checkpoint/memory): warn on broken diff chain, guard against cycles 
- Add logger.warning when a mid-chain blob is missing (fixes silent truncation bug)
- Add cycle guard to prevent infinite loops on corrupt blob stores
- Fix type annotation on diff_channels from dict[str, Any] to dict[str, str]

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
 2026-04-30 14:44:38 -04:00
Sydney RunkleandClaude Sonnet 4.6 6d25ed2738 feat(checkpoint/memory): chain-traverse diff blobs in _load_blobs 
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
 2026-04-30 14:44:38 -04:00
Sydney Runkle ac9531378d fix(channels): align DiffChannel.is_available with BinaryOperatorAggregate 2026-04-30 14:44:38 -04:00
Sydney RunkleandClaude Sonnet 4.6 c9e9e09a9e feat(channels): implement DiffChannel for incremental checkpoint storage 
Adds DiffChannel, a new channel type that stores only per-step write
deltas in checkpoints and reconstructs the full list by replaying the
chain through the operator at load time.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
 2026-04-30 14:44:38 -04:00
Sydney Runkle 3bb225b34f feat(channels): add no-op after_checkpoint hook to BaseChannel 2026-04-30 14:44:38 -04:00
Sydney RunkleandClaude Sonnet 4.6 ded1dbba2f fix(checkpoint/serde): use lazy isinstance check for DiffDelta 
Replace duck-typing check with lazy import inside _is_diff_delta helper
function to avoid module-level circular dependency while using proper
isinstance semantics.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
 2026-04-30 14:44:38 -04:00
Sydney RunkleandClaude Sonnet 4.5 99bc8bb9af feat(checkpoint/serde): serialize DiffDelta as 'diff' type tag 
Add serde support for DiffDelta by implementing dump/load for the "diff" type tag.
This allows the checkpoint system to efficiently store delta objects by serializing
them as msgpack-encoded dicts with {"d": delta, "p": prev_version} structure.

The implementation uses runtime type checking to avoid circular imports and
leverages the existing msgpack ext hooks for proper deserialization of complex
types like LangChain messages.

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
 2026-04-30 14:44:38 -04:00
Sydney RunkleandClaude Sonnet 4.6 77f8f4948c feat(checkpoint): add DiffDelta and DiffChainValue protocol types 
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
 2026-04-30 14:44:38 -04:00
Sydney RunkleandClaude Sonnet 4.6 20d1b6a435 docs: add DiffChannel implementation plan 
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
 2026-04-30 14:44:38 -04:00
Sydney RunkleandClaude Sonnet 4.6 ee00e733ba docs: add DiffChannel incremental checkpoint storage design spec 
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
 2026-04-30 14:44:38 -04:00
Sydney RunkleandGitHub a529b9bede chore(langgraph): bump version 1.1.8 -> 1.1.9 (#7563) 
## Summary

- Bumps `langgraph` patch version from `1.1.8` to `1.1.9` in
`libs/langgraph/pyproject.toml`

## Test plan

- [ ] Verify version string is correct in `pyproject.toml`
- [ ] Confirm release workflow triggers on merge
1.1.9 		2026-04-21 09:38:58 -04:00
Jessie IbarraGitHubJessie Ibarra
 		0a26b471d3 fix(langgraph): don't propagate ReplayState to subgraphs on plain resume (#7561) 
**Description:**
When clients resume an interrupted subgraph with `Command(resume=...)`
plus an explicit `checkpoint_id` in the config (the pattern LangGraph
Studio and the API server emit on every resume), the subgraph restarts
from its first node instead of continuing at the interrupted node.

Fix: gate `ReplayState` propagation on `is_time_traveling` rather than
`is_replaying`, so a resume that happens to carry a head checkpoint_id
behaves the same as one with just a thread_id.

**Verification:** added regression test
`test_subgraph_interrupt_resume_with_explicit_head_checkpoint_id` (fails
on main, passes with fix, across memory/sqlite/sqlite_aes).
Full `test_time_travel.py`, `test_time_travel_async.py`,
`test_interruption.py`, and all pregel subgraph/interrupt/resume/replay
tests still pass.

Co-authored-by: Jessie Ibarra <jessie.ibarra@langgraph.dev>
 2026-04-20 21:29:18 -04:00
Eugene YurtsevandGitHub b674dd4622 feat(prebuilt): expose available tools on ToolRuntime (#7512) 2026-04-17 16:54:16 -04:00
Eugene YurtsevandGitHub 8df0a377d0 chore(langgraph): undo unnecessary changes in stream handler (#7536) 
This change is no longer necessary as langchain-core will continue
copying checkpoint_ns for backwards compatibility
 2026-04-17 16:22:34 -04:00
dependabot[bot]GitHubdependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
 		216cf33a54 chore(deps): bump the pip group across 3 directories with 1 update (#7537) 
Bumps the pip group with 1 update in the
/libs/cli/examples/graph_prerelease_reqs/deps/zuper_deps directory:
[langchain-openai](https://github.com/langchain-ai/langchain).
Bumps the pip group with 1 update in the
/libs/cli/examples/graph_prerelease_reqs_fail directory:
[langchain-openai](https://github.com/langchain-ai/langchain).
Bumps the pip group with 1 update in the
/libs/cli/examples/graph_prerelease_reqs directory:
[langchain-openai](https://github.com/langchain-ai/langchain).

Updates `langchain-openai` from 1.0.1 to 1.1.14
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/langchain-ai/langchain/releases">langchain-openai's
releases</a>.</em></p>
<blockquote>
<h2>langchain-openai==1.1.14</h2>
<p>Changes since langchain-openai==1.1.13</p>
<p>release(openai): 1.1.14 (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36820">#36820</a>)
fix(openai): use SSRF-safe transport for image token counting (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36819">#36819</a>)
chore(deps): bump pytest to <code>9.0.3</code> (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36801">#36801</a>)
chore: bump langsmith from 0.6.3 to 0.7.31 in /libs/partners/openai (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36795">#36795</a>)
chore: bump pillow from 12.1.1 to 12.2.0 in /libs/partners/openai (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36777">#36777</a>)</p>
<h2>langchain-openai==1.1.13</h2>
<p>Changes since langchain-openai==1.1.12</p>
<p>release(openai): 1.1.13 (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36729">#36729</a>)
fix(openai): handle content blocks without type key in responses api
conversion (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36725">#36725</a>)
chore(model-profiles): refresh model profile data (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36539">#36539</a>)
chore(openai): fix broken vcr cassette playback and add ci guard (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36502">#36502</a>)
fix(openai,groq,openrouter): use is-not-None checks in usage metadata
token extraction (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36500">#36500</a>)
fix(core): fixed typos in the documentation (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36459">#36459</a>)
chore(model-profiles): refresh model profile data (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36455">#36455</a>)
feat(core): impute placeholder filenames for OpenAI file inputs (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36433">#36433</a>)
chore: pygments&gt;=2.20.0 across all packages (CVE-2026-4539) (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36385">#36385</a>)
chore(model-profiles): refresh model profile data (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36368">#36368</a>)
fix(openai): update computer call test (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36352">#36352</a>)
fix(openai): let user-provided User-Agent override the Azure default (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/35523">#35523</a>)
chore: bump requests from 2.32.5 to 2.33.0 in /libs/partners/openai (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36248">#36248</a>)</p>
<h2>langchain-openai==1.1.12</h2>
<p>Changes since langchain-openai==1.1.11</p>
<p>fix(openai): bump min core version (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36180">#36180</a>)
release(openai): 1.1.12 (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36178">#36178</a>)
fix(core,model-profiles): add missing <code>ModelProfile</code> fields,
warn on schema drift (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36129">#36129</a>)
fix(openai): support phase parameter (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36161">#36161</a>)
fix(openai): preserve namespace field in streaming function_call chunks
(<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36108">#36108</a>)
ci: suppress pytest streaming output in CI (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36092">#36092</a>)
ci: avoid unnecessary dep installs in lint targets (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36046">#36046</a>)
chore(model-profiles): refresh model profile data (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36039">#36039</a>)
chore: bump orjson from 3.11.5 to 3.11.6 in /libs/partners/openai (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/35860">#35860</a>)
fix(openai): add type: message to Responses API input items (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/35693">#35693</a>)
perf(.github): set a timeout on get min versions HTTP calls (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/35851">#35851</a>)
feat(model-profiles): new fields + <code>Makefile</code> target (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/35788">#35788</a>)
fix(openai): close PIL Image handles in token counting to prevent fd
leak (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/35742">#35742</a>)
fix(openai): typo (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/35763">#35763</a>)
chore(model-profiles): refresh model profile data (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/35754">#35754</a>)</p>
<h2>langchain-openai==1.1.11</h2>
<p>Changes since langchain-openai==1.1.10</p>
<p>fix(openai): bump min core version (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/35705">#35705</a>)
release(openai): 1.1.11 (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/35703">#35703</a>)</p>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/langchain-ai/langchain/commit/b7447c6969fc928ec3f29c200e2e56c0a46c4c77"><code>b7447c6</code></a>
fix(infra): skip serdes tests in min-version release step (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36818">#36818</a>)</li>
<li><a
href="https://github.com/langchain-ai/langchain/commit/41c0cc58b0dac82000d24715f7a4b44dc8b01fd3"><code>41c0cc5</code></a>
release(openai): 1.1.14 (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36820">#36820</a>)</li>
<li><a
href="https://github.com/langchain-ai/langchain/commit/0516156ef98f5001129f6d47bc8682d6536d58fb"><code>0516156</code></a>
fix(openai): use SSRF-safe transport for image token counting (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36819">#36819</a>)</li>
<li><a
href="https://github.com/langchain-ai/langchain/commit/338aa8131a8124e7aa1e042616ccd2366ff9f699"><code>338aa81</code></a>
fix(core): restore cloud metadata IPs and link-local range in SSRF
policy (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/3">#3</a>...</li>
<li><a
href="https://github.com/langchain-ai/langchain/commit/51e954877efd2d2c3c5bf09364dcfec8794eadb0"><code>51e9548</code></a>
chore: bump langsmith from 0.6.3 to 0.7.31 in /libs/text-splitters (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36797">#36797</a>)</li>
<li><a
href="https://github.com/langchain-ai/langchain/commit/e85c418cfa559d4a794ddc6db92c6febab44651c"><code>e85c418</code></a>
chore: bump langsmith from 0.6.3 to 0.7.31 in /libs/model-profiles (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36798">#36798</a>)</li>
<li><a
href="https://github.com/langchain-ai/langchain/commit/789126e6c78ad74664bea26228dda6e72e135dce"><code>789126e</code></a>
chore: bump langsmith from 0.6.3 to 0.7.31 in /libs/standard-tests (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36799">#36799</a>)</li>
<li><a
href="https://github.com/langchain-ai/langchain/commit/937b3eb3827551d17ee4736f9acc4aa57e88c716"><code>937b3eb</code></a>
chore: bump langsmith from 0.6.3 to 0.7.31 in /libs/langchain_v1 (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36800">#36800</a>)</li>
<li><a
href="https://github.com/langchain-ai/langchain/commit/a06c205738cf5953e28c37287ddb1559d67c01f6"><code>a06c205</code></a>
ci(infra): validate issue checkboxes by section (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36811">#36811</a>)</li>
<li><a
href="https://github.com/langchain-ai/langchain/commit/aa33b06deb0d65489ce254b48a8aaf8a86304c18"><code>aa33b06</code></a>
fix(langchain-classic): suppress mypy errors in compat code (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36806">#36806</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/langchain-ai/langchain/compare/langchain-openai==1.0.1...langchain-openai==1.1.14">compare
view</a></li>
</ul>
</details>
<br />

Updates `langchain-openai` from 1.0.0a2 to 1.1.14
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/langchain-ai/langchain/releases">langchain-openai's
releases</a>.</em></p>
<blockquote>
<h2>langchain-openai==1.1.14</h2>
<p>Changes since langchain-openai==1.1.13</p>
<p>release(openai): 1.1.14 (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36820">#36820</a>)
fix(openai): use SSRF-safe transport for image token counting (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36819">#36819</a>)
chore(deps): bump pytest to <code>9.0.3</code> (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36801">#36801</a>)
chore: bump langsmith from 0.6.3 to 0.7.31 in /libs/partners/openai (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36795">#36795</a>)
chore: bump pillow from 12.1.1 to 12.2.0 in /libs/partners/openai (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36777">#36777</a>)</p>
<h2>langchain-openai==1.1.13</h2>
<p>Changes since langchain-openai==1.1.12</p>
<p>release(openai): 1.1.13 (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36729">#36729</a>)
fix(openai): handle content blocks without type key in responses api
conversion (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36725">#36725</a>)
chore(model-profiles): refresh model profile data (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36539">#36539</a>)
chore(openai): fix broken vcr cassette playback and add ci guard (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36502">#36502</a>)
fix(openai,groq,openrouter): use is-not-None checks in usage metadata
token extraction (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36500">#36500</a>)
fix(core): fixed typos in the documentation (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36459">#36459</a>)
chore(model-profiles): refresh model profile data (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36455">#36455</a>)
feat(core): impute placeholder filenames for OpenAI file inputs (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36433">#36433</a>)
chore: pygments&gt;=2.20.0 across all packages (CVE-2026-4539) (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36385">#36385</a>)
chore(model-profiles): refresh model profile data (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36368">#36368</a>)
fix(openai): update computer call test (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36352">#36352</a>)
fix(openai): let user-provided User-Agent override the Azure default (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/35523">#35523</a>)
chore: bump requests from 2.32.5 to 2.33.0 in /libs/partners/openai (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36248">#36248</a>)</p>
<h2>langchain-openai==1.1.12</h2>
<p>Changes since langchain-openai==1.1.11</p>
<p>fix(openai): bump min core version (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36180">#36180</a>)
release(openai): 1.1.12 (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36178">#36178</a>)
fix(core,model-profiles): add missing <code>ModelProfile</code> fields,
warn on schema drift (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36129">#36129</a>)
fix(openai): support phase parameter (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36161">#36161</a>)
fix(openai): preserve namespace field in streaming function_call chunks
(<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36108">#36108</a>)
ci: suppress pytest streaming output in CI (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36092">#36092</a>)
ci: avoid unnecessary dep installs in lint targets (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36046">#36046</a>)
chore(model-profiles): refresh model profile data (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36039">#36039</a>)
chore: bump orjson from 3.11.5 to 3.11.6 in /libs/partners/openai (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/35860">#35860</a>)
fix(openai): add type: message to Responses API input items (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/35693">#35693</a>)
perf(.github): set a timeout on get min versions HTTP calls (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/35851">#35851</a>)
feat(model-profiles): new fields + <code>Makefile</code> target (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/35788">#35788</a>)
fix(openai): close PIL Image handles in token counting to prevent fd
leak (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/35742">#35742</a>)
fix(openai): typo (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/35763">#35763</a>)
chore(model-profiles): refresh model profile data (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/35754">#35754</a>)</p>
<h2>langchain-openai==1.1.11</h2>
<p>Changes since langchain-openai==1.1.10</p>
<p>fix(openai): bump min core version (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/35705">#35705</a>)
release(openai): 1.1.11 (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/35703">#35703</a>)</p>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/langchain-ai/langchain/commit/b7447c6969fc928ec3f29c200e2e56c0a46c4c77"><code>b7447c6</code></a>
fix(infra): skip serdes tests in min-version release step (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36818">#36818</a>)</li>
<li><a
href="https://github.com/langchain-ai/langchain/commit/41c0cc58b0dac82000d24715f7a4b44dc8b01fd3"><code>41c0cc5</code></a>
release(openai): 1.1.14 (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36820">#36820</a>)</li>
<li><a
href="https://github.com/langchain-ai/langchain/commit/0516156ef98f5001129f6d47bc8682d6536d58fb"><code>0516156</code></a>
fix(openai): use SSRF-safe transport for image token counting (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36819">#36819</a>)</li>
<li><a
href="https://github.com/langchain-ai/langchain/commit/338aa8131a8124e7aa1e042616ccd2366ff9f699"><code>338aa81</code></a>
fix(core): restore cloud metadata IPs and link-local range in SSRF
policy (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/3">#3</a>...</li>
<li><a
href="https://github.com/langchain-ai/langchain/commit/51e954877efd2d2c3c5bf09364dcfec8794eadb0"><code>51e9548</code></a>
chore: bump langsmith from 0.6.3 to 0.7.31 in /libs/text-splitters (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36797">#36797</a>)</li>
<li><a
href="https://github.com/langchain-ai/langchain/commit/e85c418cfa559d4a794ddc6db92c6febab44651c"><code>e85c418</code></a>
chore: bump langsmith from 0.6.3 to 0.7.31 in /libs/model-profiles (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36798">#36798</a>)</li>
<li><a
href="https://github.com/langchain-ai/langchain/commit/789126e6c78ad74664bea26228dda6e72e135dce"><code>789126e</code></a>
chore: bump langsmith from 0.6.3 to 0.7.31 in /libs/standard-tests (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36799">#36799</a>)</li>
<li><a
href="https://github.com/langchain-ai/langchain/commit/937b3eb3827551d17ee4736f9acc4aa57e88c716"><code>937b3eb</code></a>
chore: bump langsmith from 0.6.3 to 0.7.31 in /libs/langchain_v1 (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36800">#36800</a>)</li>
<li><a
href="https://github.com/langchain-ai/langchain/commit/a06c205738cf5953e28c37287ddb1559d67c01f6"><code>a06c205</code></a>
ci(infra): validate issue checkboxes by section (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36811">#36811</a>)</li>
<li><a
href="https://github.com/langchain-ai/langchain/commit/aa33b06deb0d65489ce254b48a8aaf8a86304c18"><code>aa33b06</code></a>
fix(langchain-classic): suppress mypy errors in compat code (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36806">#36806</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/langchain-ai/langchain/compare/langchain-openai==1.0.1...langchain-openai==1.1.14">compare
view</a></li>
</ul>
</details>
<br />

Updates `langchain-openai` from 1.0.0a2 to 1.1.14
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/langchain-ai/langchain/releases">langchain-openai's
releases</a>.</em></p>
<blockquote>
<h2>langchain-openai==1.1.14</h2>
<p>Changes since langchain-openai==1.1.13</p>
<p>release(openai): 1.1.14 (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36820">#36820</a>)
fix(openai): use SSRF-safe transport for image token counting (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36819">#36819</a>)
chore(deps): bump pytest to <code>9.0.3</code> (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36801">#36801</a>)
chore: bump langsmith from 0.6.3 to 0.7.31 in /libs/partners/openai (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36795">#36795</a>)
chore: bump pillow from 12.1.1 to 12.2.0 in /libs/partners/openai (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36777">#36777</a>)</p>
<h2>langchain-openai==1.1.13</h2>
<p>Changes since langchain-openai==1.1.12</p>
<p>release(openai): 1.1.13 (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36729">#36729</a>)
fix(openai): handle content blocks without type key in responses api
conversion (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36725">#36725</a>)
chore(model-profiles): refresh model profile data (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36539">#36539</a>)
chore(openai): fix broken vcr cassette playback and add ci guard (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36502">#36502</a>)
fix(openai,groq,openrouter): use is-not-None checks in usage metadata
token extraction (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36500">#36500</a>)
fix(core): fixed typos in the documentation (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36459">#36459</a>)
chore(model-profiles): refresh model profile data (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36455">#36455</a>)
feat(core): impute placeholder filenames for OpenAI file inputs (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36433">#36433</a>)
chore: pygments&gt;=2.20.0 across all packages (CVE-2026-4539) (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36385">#36385</a>)
chore(model-profiles): refresh model profile data (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36368">#36368</a>)
fix(openai): update computer call test (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36352">#36352</a>)
fix(openai): let user-provided User-Agent override the Azure default (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/35523">#35523</a>)
chore: bump requests from 2.32.5 to 2.33.0 in /libs/partners/openai (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36248">#36248</a>)</p>
<h2>langchain-openai==1.1.12</h2>
<p>Changes since langchain-openai==1.1.11</p>
<p>fix(openai): bump min core version (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36180">#36180</a>)
release(openai): 1.1.12 (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36178">#36178</a>)
fix(core,model-profiles): add missing <code>ModelProfile</code> fields,
warn on schema drift (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36129">#36129</a>)
fix(openai): support phase parameter (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36161">#36161</a>)
fix(openai): preserve namespace field in streaming function_call chunks
(<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36108">#36108</a>)
ci: suppress pytest streaming output in CI (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36092">#36092</a>)
ci: avoid unnecessary dep installs in lint targets (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36046">#36046</a>)
chore(model-profiles): refresh model profile data (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36039">#36039</a>)
chore: bump orjson from 3.11.5 to 3.11.6 in /libs/partners/openai (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/35860">#35860</a>)
fix(openai): add type: message to Responses API input items (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/35693">#35693</a>)
perf(.github): set a timeout on get min versions HTTP calls (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/35851">#35851</a>)
feat(model-profiles): new fields + <code>Makefile</code> target (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/35788">#35788</a>)
fix(openai): close PIL Image handles in token counting to prevent fd
leak (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/35742">#35742</a>)
fix(openai): typo (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/35763">#35763</a>)
chore(model-profiles): refresh model profile data (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/35754">#35754</a>)</p>
<h2>langchain-openai==1.1.11</h2>
<p>Changes since langchain-openai==1.1.10</p>
<p>fix(openai): bump min core version (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/35705">#35705</a>)
release(openai): 1.1.11 (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/35703">#35703</a>)</p>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/langchain-ai/langchain/commit/b7447c6969fc928ec3f29c200e2e56c0a46c4c77"><code>b7447c6</code></a>
fix(infra): skip serdes tests in min-version release step (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36818">#36818</a>)</li>
<li><a
href="https://github.com/langchain-ai/langchain/commit/41c0cc58b0dac82000d24715f7a4b44dc8b01fd3"><code>41c0cc5</code></a>
release(openai): 1.1.14 (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36820">#36820</a>)</li>
<li><a
href="https://github.com/langchain-ai/langchain/commit/0516156ef98f5001129f6d47bc8682d6536d58fb"><code>0516156</code></a>
fix(openai): use SSRF-safe transport for image token counting (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36819">#36819</a>)</li>
<li><a
href="https://github.com/langchain-ai/langchain/commit/338aa8131a8124e7aa1e042616ccd2366ff9f699"><code>338aa81</code></a>
fix(core): restore cloud metadata IPs and link-local range in SSRF
policy (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/3">#3</a>...</li>
<li><a
href="https://github.com/langchain-ai/langchain/commit/51e954877efd2d2c3c5bf09364dcfec8794eadb0"><code>51e9548</code></a>
chore: bump langsmith from 0.6.3 to 0.7.31 in /libs/text-splitters (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36797">#36797</a>)</li>
<li><a
href="https://github.com/langchain-ai/langchain/commit/e85c418cfa559d4a794ddc6db92c6febab44651c"><code>e85c418</code></a>
chore: bump langsmith from 0.6.3 to 0.7.31 in /libs/model-profiles (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36798">#36798</a>)</li>
<li><a
href="https://github.com/langchain-ai/langchain/commit/789126e6c78ad74664bea26228dda6e72e135dce"><code>789126e</code></a>
chore: bump langsmith from 0.6.3 to 0.7.31 in /libs/standard-tests (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36799">#36799</a>)</li>
<li><a
href="https://github.com/langchain-ai/langchain/commit/937b3eb3827551d17ee4736f9acc4aa57e88c716"><code>937b3eb</code></a>
chore: bump langsmith from 0.6.3 to 0.7.31 in /libs/langchain_v1 (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36800">#36800</a>)</li>
<li><a
href="https://github.com/langchain-ai/langchain/commit/a06c205738cf5953e28c37287ddb1559d67c01f6"><code>a06c205</code></a>
ci(infra): validate issue checkboxes by section (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36811">#36811</a>)</li>
<li><a
href="https://github.com/langchain-ai/langchain/commit/aa33b06deb0d65489ce254b48a8aaf8a86304c18"><code>aa33b06</code></a>
fix(langchain-classic): suppress mypy errors in compat code (<a
href="https://redirect.github.com/langchain-ai/langchain/issues/36806">#36806</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/langchain-ai/langchain/compare/langchain-openai==1.0.1...langchain-openai==1.1.14">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`.

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Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
 2026-04-17 12:42:55 -07:00
Eugene YurtsevandGitHub 4956134a37 release(langgraph): 1.1.8 (#7545) 
releasing 1.1.8
1.1.8 		2026-04-17 19:41:13 +00:00
Aidan DalyGitHubEugene Yurtsev
 		aa94790f36 fix(langgraph): remove strict add_handler type check that breaks OTel instrumentation (#7544) 
## Summary

Removes the `add_handler()` overrides on `_GraphCallbackManager` and
`_AsyncGraphCallbackManager` that reject handlers not inheriting from
`GraphCallbackHandler`. This fixes a regression in 1.1.7 where
`opentelemetry-instrumentation-langchain` (and likely other libraries
that patch `BaseCallbackManager.__init__`) crash with `TypeError:
handlers must inherit GraphCallbackHandler` at invocation time.

## Why this is safe

The strict type check is redundant — `_configure_graph_callbacks` and
`_filter_graph_handlers` already filter handlers to
`GraphCallbackHandler` instances at construction time. Non-graph
handlers that enter via external patches (like OTel's monkey-patch) are
harmless because `handle_event("on_interrupt", ...)` /
`handle_event("on_resume", ...)` will simply no-op on handlers that
don't implement those methods.

## What changed

- Deleted `add_handler()` override from `_GraphCallbackManager` (was
lines 248-255)
- Deleted `add_handler()` override from `_AsyncGraphCallbackManager`
(was lines 324-331)
- No other changes — 18 lines removed, 0 added

## Test plan

- [x] All 8 existing `test_graph_callbacks.py` tests pass (`make test
TEST=tests/test_graph_callbacks.py`)
- [x] `make lint` passes
- [x] `make format` passes (no changes needed)
- [x] Verified fix locally: `LangchainInstrumentor().instrument()` +
`create_react_agent()` + `graph.ainvoke()` no longer raises `TypeError`
- [x] Verified the graph lifecycle callbacks (`on_interrupt`,
`on_resume`) still work correctly

Closes #7543

---------

Co-authored-by: Eugene Yurtsev <eyurtsev@gmail.com>
 2026-04-17 15:33:10 -04:00
ccurmeandGitHub e002711ede release(prebuilt): 1.0.10 (#7541) prebuilt==1.0.10 2026-04-17 13:52:20 -04:00
William FHGitHubWill Fu-Hinthorn
 		f44b49b33d chore: dedup warnings (#7257) 
Co-authored-by: Will Fu-Hinthorn <will@langchain.dev>
 2026-04-17 10:13:03 -07:00
William FHGitHubWill Fu-Hinthorn
 		a0a95df2ac release(cli): 0.4.23 (#7542) 
Release Note: Increase the max bound for langgraph-api

Co-authored-by: Will Fu-Hinthorn <will@langchain.dev>
cli==0.4.23 		2026-04-17 16:38:14 +00:00
Eugene YurtsevandGitHub d194c18c06 release(langgraph): 1.1.7 (#7540) 
release langgraph 1.1.7
1.1.7 		2026-04-17 15:19:18 +00:00
Sydney Runkle eae916719f CLI bump cli==0.4.22 2026-04-16 13:48:02 -04:00
ccurmeGitHubSydney Runkle
 		f093702e4e fix(prebuilt): handle injected NotRequired keys (#7392) 
Resolves https://github.com/langchain-ai/langchain/issues/35585

This would previously raise KeyError:
```python
from typing import Annotated

from langchain_core.tools import tool
from langchain.agents import create_agent
from typing_extensions import NotRequired
from langgraph.prebuilt import InjectedState
from langchain.agents import AgentState


class CustomAgentState(AgentState):
    city: NotRequired[str]


@tool
def get_weather(city: Annotated[str | None, InjectedState("city")] = None) -> str:
    """Get weather for a given city."""
    if city is None:
        city = "Boston"
    return f"It's always sunny in {city}!"


agent = create_agent(
    model="claude-sonnet-4-6",
    tools=[get_weather],
    system_prompt="You are a helpful assistant",
    state_schema=CustomAgentState,
)

input_message = {
    "role": "user",
    "content": "What's the weather?",
}

result = agent.invoke({"messages": [input_message]})
for m in result["messages"]:
    m.pretty_print()
```

---------

Co-authored-by: Sydney Runkle <sydneymarierunkle@gmail.com>
 2026-04-16 13:06:33 +00:00
Sydney RunkleandGitHub 51cbdbd5cd fix: time travel when going back to interrupt node (#7498) 
# Fix: Create fork checkpoint on subgraph time travel

## Problem

When time-traveling to a subgraph checkpoint that has an interrupt, and
then resuming, the resume would load the **wrong state** — it would pick
up the original execution's latest checkpoint instead of the
time-traveled one.

This happened because replaying from a subgraph checkpoint never created
a new parent checkpoint. If the replay hit an interrupt before
`after_tick()` ran, no checkpoint was written at all, so the parent's
"latest" checkpoint was still the old one from the original execution.

## Fix

When the loop detects a time-travel replay (not an `update_state` fork),
it now **eagerly writes a fork checkpoint** at the start of the tick.
This ensures:

1. The parent thread's latest checkpoint points to the replayed state
2. Subsequent `Command(resume=...)` calls find the correct checkpoint
3. Stale `INTERRUPT` pending writes from the old checkpoint are cleared
(they reference old task IDs)

Additionally, the subgraph replay logic now uses the **parent checkpoint
ID** (from `prev_checkpoint_config`) when resolving subgraph checkpoints
during time-travel, matching the existing behavior for `update_state`
forks.

## Checkpoint flow diagrams

### Before fix: time travel leaves no fork

```
Original execution:

  C0 (start) --> C1 (step_a) --> C2 (ask_1 interrupt) --> C3 (resume) --> C4 (ask_2 interrupt) --> C5 (done)

Time travel to C2 (subgraph config):

  Replay runs... hits interrupt... no new checkpoint written.
  Parent "latest" is still C5.

  Command(resume="new_answer"):
    Loads C5 (wrong!) instead of the replayed C2 state.
```

### After fix: time travel creates a fork

```
Original execution:

  C0 --> C1 --> C2 --> C3 --> C4 --> C5 (done)

Time travel to C2 (subgraph config):

  C0 --> C1 --> C2 --> C3 --> C4 --> C5
                  \
                   F1 (fork, source="fork")  <-- new latest

  Command(resume="new_answer"):
    Loads F1 (correct!) --> resumes from the right state.

  After full resume:

  C0 --> C1 --> C2 --> C3 --> C4 --> C5
                  \
                   F1 --> F2 (ask_1 result) --> F3 (ask_2 interrupt) --> F4 (done)
```

### Manual fork via `update_state` (unchanged)

```
  C0 --> C1 --> C2 --> C3
                  \
                   U1 (source="update")  <-- created by update_state()

  This path already worked. The fix skips update/fork sources
  so existing behavior is preserved.
```

## Changes

- **`libs/langgraph/langgraph/pregel/_loop.py`**:
- Extract `is_time_traveling` flag from the existing replay detection
logic for reuse
- Write a fork checkpoint (`source="fork"`) eagerly at the start of a
time-travel tick, before execution begins
- Clear stale `INTERRUPT` pending writes when creating the fork (they
reference old task IDs that won't match the new checkpoint)
- Unify subgraph replay ID resolution: check `source in ("update",
"fork")` instead of a separate `is_time_traveling` condition, since the
new fork checkpoint now has `source="fork"`
- **`libs/langgraph/tests/test_time_travel.py`** and
**`test_time_travel_async.py`**: Added 4 new test cases (sync + async):
- `test_replay_from_before_interrupt_then_resume` — replays from a
checkpoint before an interrupt, resumes with a new answer, and verifies
the full checkpoint history (source, next, values) at each stage
- `test_subgraph_time_travel_resume_from_first_interrupt` — time-travels
to a subgraph's first interrupt, resumes both interrupts with new
answers, and verifies the fork creates a new branch while preserving the
original
- `test_subgraph_time_travel_resume_from_second_interrupt` —
time-travels to a subgraph's second interrupt, resumes with a new
answer, and verifies the first interrupt's original answer is preserved
- `test_subgraph_time_travel_checkpoint_pattern` — verifies the fork
checkpoint branches from the correct replay point and that the full
checkpoint tree is correct after resume
- **`libs/langgraph/tests/test_pregel.py`** /
**`test_pregel_async.py`**: Updated existing
`test_weather_subgraph_state` to account for the new fork checkpoint
appearing in history (history length increases by 1)
 2026-04-16 08:29:48 -04:00
hari-dhanushkodiandGitHub 4d64227c13 chore: start tracking cli deploy source (#7520) 
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 2026-04-16 08:24:47 -04:00
dependabot[bot]GitHubdependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
 		6bcac5d72e chore(deps): bump langsmith from 0.6.4 to 0.7.31 in /libs/prebuilt (#7530) 
Bumps [langsmith](https://github.com/langchain-ai/langsmith-sdk) from
0.6.4 to 0.7.31.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/langchain-ai/langsmith-sdk/releases">langsmith's
releases</a>.</em></p>
<blockquote>
<h2>v0.7.31</h2>
<h2>What's Changed</h2>
<ul>
<li>chore(deps-dev): bump langchain-core from 1.2.23 to 1.2.28 in
/python by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2692">langchain-ai/langsmith-sdk#2692</a></li>
<li>chore(deps-dev): bump <code>@​anthropic-ai/sdk</code> from 0.82.0 to
0.84.0 in /js by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2684">langchain-ai/langsmith-sdk#2684</a></li>
<li>chore(deps): bump cryptography from 46.0.6 to 46.0.7 in /python by
<a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2693">langchain-ai/langsmith-sdk#2693</a></li>
<li>chore(deps-dev): bump <code>@​anthropic-ai/sdk</code> from 0.84.0 to
0.85.0 in /js by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2700">langchain-ai/langsmith-sdk#2700</a></li>
<li>feat(py): Tag OpenAI Agent Python SDK runs with ls_agent_type by <a
href="https://github.com/jacoblee93"><code>@​jacoblee93</code></a> in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2699">langchain-ai/langsmith-sdk#2699</a></li>
<li>feat(js): Adds ls_agent_type metadata to AI SDK runs by <a
href="https://github.com/jacoblee93"><code>@​jacoblee93</code></a> in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2701">langchain-ai/langsmith-sdk#2701</a></li>
<li>chore(deps-dev): bump types-tqdm from 4.67.3.20260303 to
4.67.3.20260408 in /python by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2710">langchain-ai/langsmith-sdk#2710</a></li>
<li>chore(deps): bump pnpm/action-setup from 5 to 6 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2705">langchain-ai/langsmith-sdk#2705</a></li>
<li>chore(deps): bump the py-minor-and-patch group across 1 directory
with 10 updates by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2711">langchain-ai/langsmith-sdk#2711</a></li>
<li>chore(deps-dev): bump <code>@​anthropic-ai/sdk</code> from 0.85.0 to
0.86.0 in /js by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2702">langchain-ai/langsmith-sdk#2702</a></li>
<li>chore(deps): bump actions/github-script from 8 to 9 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2706">langchain-ai/langsmith-sdk#2706</a></li>
<li>chore(deps-dev): bump the js-minor-and-patch group across 1
directory with 7 updates by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2712">langchain-ai/langsmith-sdk#2712</a></li>
<li>chore(deps-dev): bump types-psutil from 7.2.2.20260130 to
7.2.2.20260408 in /python by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2709">langchain-ai/langsmith-sdk#2709</a></li>
<li>chore(deps-dev): bump rich from 14.3.3 to 15.0.0 in /python by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2708">langchain-ai/langsmith-sdk#2708</a></li>
<li>feat: Filter kwargs from new token events by <a
href="https://github.com/jacoblee93"><code>@​jacoblee93</code></a> in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2714">langchain-ai/langsmith-sdk#2714</a></li>
<li>release(py): 0.7.31 by <a
href="https://github.com/jacoblee93"><code>@​jacoblee93</code></a> in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2716">langchain-ai/langsmith-sdk#2716</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.30...v0.7.31">https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.30...v0.7.31</a></p>
<h2>v0.7.30</h2>
<h2>What's Changed</h2>
<ul>
<li>feat(python): add service feature to sandbox by <a
href="https://github.com/DanielKneipp"><code>@​DanielKneipp</code></a>
in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2665">langchain-ai/langsmith-sdk#2665</a></li>
<li>fix(js): Fix prototype pollution bug in anonymizers by <a
href="https://github.com/jacoblee93"><code>@​jacoblee93</code></a> in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2690">langchain-ai/langsmith-sdk#2690</a></li>
<li>release(js): 0.5.18 by <a
href="https://github.com/jacoblee93"><code>@​jacoblee93</code></a> in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2691">langchain-ai/langsmith-sdk#2691</a></li>
<li>chore(js/sandbox): suppress warning log by <a
href="https://github.com/hntrl"><code>@​hntrl</code></a> in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2694">langchain-ai/langsmith-sdk#2694</a></li>
<li>feat(js): Add metadata to Claude Agent SDK JS tracing by <a
href="https://github.com/jacoblee93"><code>@​jacoblee93</code></a> in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2695">langchain-ai/langsmith-sdk#2695</a></li>
<li>fix(py): Fix run tree memory leak by <a
href="https://github.com/jacoblee93"><code>@​jacoblee93</code></a> in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2696">langchain-ai/langsmith-sdk#2696</a></li>
<li>release(py): 0.7.30 by <a
href="https://github.com/jacoblee93"><code>@​jacoblee93</code></a> in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2698">langchain-ai/langsmith-sdk#2698</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.29...v0.7.30">https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.29...v0.7.30</a></p>
<h2>v0.7.29</h2>
<h2>What's Changed</h2>
<ul>
<li>release(js): 0.5.17 by <a
href="https://github.com/jacoblee93"><code>@​jacoblee93</code></a> in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2681">langchain-ai/langsmith-sdk#2681</a></li>
<li>feat(py): Fix race condition around Claude Agent SDK instrumentation
by <a href="https://github.com/jacoblee93"><code>@​jacoblee93</code></a>
in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2685">langchain-ai/langsmith-sdk#2685</a></li>
<li>release(py): 0.7.29 by <a
href="https://github.com/jacoblee93"><code>@​jacoblee93</code></a> in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2686">langchain-ai/langsmith-sdk#2686</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.28...v0.7.29">https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.28...v0.7.29</a></p>
<h2>v0.7.28</h2>
<h2>What's Changed</h2>
<ul>
<li>feat(py): Support subagent tracing in Claude Agents SDK, fix usage
and duplicate messages by <a
href="https://github.com/jacoblee93"><code>@​jacoblee93</code></a> in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2670">langchain-ai/langsmith-sdk#2670</a></li>
<li>chore(deps-dev): bump the py-minor-and-patch group across 1
directory with 11 updates by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2677">langchain-ai/langsmith-sdk#2677</a></li>
<li>chore(deps-dev): bump the js-minor-and-patch group across 1
directory with 8 updates by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2667">langchain-ai/langsmith-sdk#2667</a></li>
<li>chore(deps): bump pnpm/action-setup from 4 to 5 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2658">langchain-ai/langsmith-sdk#2658</a></li>
</ul>
<!-- raw HTML omitted -->
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<details>
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<ul>
<li><a
href="https://github.com/langchain-ai/langsmith-sdk/commit/c434999d05c00334efeba88b8bbd2de9f3afbef6"><code>c434999</code></a>
release(py): 0.7.31 (<a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/issues/2716">#2716</a>)</li>
<li><a
href="https://github.com/langchain-ai/langsmith-sdk/commit/47d7c4a783333e716395d802e7632f1f1b4744d3"><code>47d7c4a</code></a>
feat: Filter kwargs from new token events (<a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/issues/2714">#2714</a>)</li>
<li><a
href="https://github.com/langchain-ai/langsmith-sdk/commit/3c57445b543c9a2f86db52024ea2c998bfc2ffab"><code>3c57445</code></a>
chore(deps-dev): bump rich from 14.3.3 to 15.0.0 in /python (<a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/issues/2708">#2708</a>)</li>
<li><a
href="https://github.com/langchain-ai/langsmith-sdk/commit/2be6cd01a2b6e35e811488d3561e7b0b57b06f63"><code>2be6cd0</code></a>
chore(deps-dev): bump types-psutil from 7.2.2.20260130 to 7.2.2.20260408
in /...</li>
<li><a
href="https://github.com/langchain-ai/langsmith-sdk/commit/b8b6ca32d43c919c07a4e13c99a83bcaab8accb0"><code>b8b6ca3</code></a>
chore(deps-dev): bump the js-minor-and-patch group across 1 directory
with 7 ...</li>
<li><a
href="https://github.com/langchain-ai/langsmith-sdk/commit/9897cb33da7698291637f268edd833ca3e1adde6"><code>9897cb3</code></a>
chore(deps): bump actions/github-script from 8 to 9 (<a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/issues/2706">#2706</a>)</li>
<li><a
href="https://github.com/langchain-ai/langsmith-sdk/commit/572c0184285747e027a796e03ea6c9ba171e09a6"><code>572c018</code></a>
chore(deps-dev): bump <code>@​anthropic-ai/sdk</code> from 0.85.0 to
0.86.0 in /js (<a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/issues/2702">#2702</a>)</li>
<li><a
href="https://github.com/langchain-ai/langsmith-sdk/commit/57447524c88b6bba2775161aa449da32fb8e5c42"><code>5744752</code></a>
chore(deps): bump the py-minor-and-patch group across 1 directory with
10 upd...</li>
<li><a
href="https://github.com/langchain-ai/langsmith-sdk/commit/960cae7f490e9ccbe428e6b56c8047bdb7b942a5"><code>960cae7</code></a>
chore(deps): bump pnpm/action-setup from 5 to 6 (<a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/issues/2705">#2705</a>)</li>
<li><a
href="https://github.com/langchain-ai/langsmith-sdk/commit/9370e7670abf7f8f9a36fbb72250bcfd2f91e7c6"><code>9370e76</code></a>
chore(deps-dev): bump types-tqdm from 4.67.3.20260303 to 4.67.3.20260408
in /...</li>
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