langgraph

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f61e9b45b6 perf: cache UntrackedValue isinstance scan in put_writes

The `put_writes` method was scanning all channels with
`any(isinstance(ch, UntrackedValue) ...)` on every call. For the
sequential_1000 benchmark this produced 1M+ isinstance calls through
the ABC machinery, consuming 40% of total runtime.

Cache the result as `_has_untracked_channels` once in __enter__ and
__aenter__, replacing both scan sites (put_writes and checkpoint
sanitization). This yields a 1.8-2.3x speedup on sequential_1000.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

2026-07-27 17:08:11 +00:00

checkpoint

feat(checkpoint,checkpoint-postgres): add opt-in omit_expired to skip expired rows on read (#8354 )

2026-07-20 16:57:23 -04:00

checkpoint-conformance

chore(deps): bump the minor-and-patch group in /libs/checkpoint-conformance with 4 updates (#8247 )

2026-07-03 15:44:26 -07:00

checkpoint-postgres

feat(checkpoint,checkpoint-postgres): add opt-in omit_expired to skip expired rows on read (#8354 )

2026-07-20 16:57:23 -04:00

checkpoint-sqlite

chore(deps): bump the minor-and-patch group in /libs/checkpoint-sqlite with 4 updates (#8249 )