langgraph

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Sydney RunkleandClaude Sonnet 4.6 5c0407f402 fix(checkpoint): base saver _get_channel_writes_history handles _DeltaSnapshot correctly

The base saver's _get_channel_writes_history walk terminated at any
non-DELTA_SENTINEL blob without collecting that ancestor's pending_writes.
This was correct for pre-delta migration blobs (which subsume their own
writes), but wrong for _DeltaSnapshot blobs: the snapshot captures state
AT the ancestor, while pending_writes encode the NEXT step's transition
and must be collected before terminating.

Applies the same fix as was already applied to InMemorySaver and
PostgresSaver: when the ancestor blob is a _DeltaSnapshot, collect its
pending_writes first, then terminate with the snapshot as seed.

Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>

2026-04-28 16:11:04 -04:00

checkpoint

fix(checkpoint): base saver _get_channel_writes_history handles _DeltaSnapshot correctly

2026-04-28 16:11:04 -04:00

checkpoint-conformance

chore(deps): bump langsmith from 0.7.3 to 0.7.31 in /libs/checkpoint-conformance (#7523 )

2026-04-15 19:36:27 -07:00

checkpoint-postgres

fix: format import order in checkpoint and checkpoint-postgres

2026-04-27 20:46:16 -04:00

checkpoint-sqlite

chore(deps): bump langsmith from 0.6.4 to 0.7.31 in /libs/checkpoint-sqlite (#7524 )