Changes since 1.2.21

• release(langgraph): 1.2.22 (#9702)
• release(checkpoint-postgres): 3.2.1 (#9700)
• release(prebuilt): 1.1.2 (#9701)
• release(checkpoint): 4.3.2 (#9699)
• fix(langgraph): stream a child graph on its own thread to a caller streaming subgraphs (#9698)
• perf(langgraph): skip message conversion in add_messages for plain messages (#9631)
• perf(langgraph): filter pending writes to the given tasks before reading their statuses (#9634)
• perf(langgraph): match update keys against a set on wide states (#9632)
• perf(langgraph): check only failed futures for the runner stop condition (#9630)
• perf(langgraph): find untracked and delta channels once per run (#9629)

Changes since prebuilt==1.1.1

• release(langgraph): 1.2.22 (#9702)
• release(checkpoint-postgres): 3.2.1 (#9700)
• release(prebuilt): 1.1.2 (#9701)
• release(checkpoint): 4.3.2 (#9699)
• perf(prebuilt): only format the call_model error message when raising (#9628)
• release(langgraph): 1.2.21 (#9683)
• chore(deps): bump the minor-and-patch group across 1 directory with 9 updates (#9530)
• chore(deps-dev): bump the minor-and-patch group across 1 directory with 6 updates (#9527)
• release(langgraph): 1.2.20 (#9595)
• release(langgraph): 1.2.19 (#9504)
• release(checkpoint-sqlite): 3.1.3 (#9505)
• release(checkpoint): 4.3.1 (#9447)
• release(langgraph): 1.2.18 (#9445)
• release(langgraph): 1.2.17 (#9418)
• chore(deps): remove precautionary third-party upper bounds (#9390)
• chore(deps): bump certifi from 2026.1.4 to 2026.10.19 in /libs/prebuilt (#9367)
• chore(deps-dev): bump the minor-and-patch group in /libs/prebuilt with 6 updates (#9150)
• release(langgraph): 1.2.16 (#9334)

Changes since checkpointpostgres==3.2.0

• release(checkpoint-postgres): 3.2.1 (#9700)
• release(checkpoint): 4.3.2 (#9699)
• perf(checkpoint-postgres): run a lone store read outside a pipeline (#9635)
• perf(checkpoint-postgres): skip the async saver's lock for connection pools (#9638)
• perf(checkpoint-postgres): load no pending writes without a thread hop (#9639)
• release(checkpoint): 4.3.1 (#9447)
• chore(deps): bump certifi from 2026.1.4 to 2026.10.19 in /libs/checkpoint-postgres (#9369)

Changes since checkpoint==4.3.1

• release(checkpoint): 4.3.2 (#9699)
• perf(checkpoint): stop InMemoryStore search at the requested page (#9633)
• perf(checkpoint): dedupe batched store reads with a dict (#9636)
• chore(deps): bump the minor-and-patch group in /libs/checkpoint with 6 updates (#9529)
• chore(deps-dev): bump pycryptodome from 3.23.0 to 4.2.0 in /libs/checkpoint in the major group (#9531)

Changes since 1.2.20

• release(langgraph): 1.2.21 (#9683)
• chore(deps): bump the minor-and-patch group across 1 directory with 9 updates (#9530)
• fix(langgraph): match whole namespace segments in get_subgraphs (#9615)
• fix(langgraph): read an undeclared subgraph namespace with the parent graph (#9614)
• docs(langgraph): say each interrupt() call has its own id in UnknownInterruptError (#9600)
• chore(deps): bump filelock and langgraph-api for security fixes (#9606)

Changes since cli==0.4.42

• release(cli): 0.4.43 (#9682)
• feat(cli): use Agent Server flags with hidden deployment aliases (#9666)
• fix(cli): remove discontinued local debugger image (#8543)
• chore(deps): bump the minor-and-patch group across 1 directory with 9 updates (#9532)

Changes since sdk==0.4.13

• release(sdk-py): 0.4.14 (#9610)
• feat(sdk-py): add strict_resume to runs.create, stream and wait (#9599)
• feat(sdk-py): add tools and lifecycle to StreamMode (#9601)

Changes since cli==0.4.41

• release(cli): 0.4.42 (#9611)
• feat(cli): add deploy metrics command (#9479)
• chore(deps): bump filelock and langgraph-api for security fixes (#9606)

Changes since 1.2.19

• release(langgraph): 1.2.20 (#9595)
• feat(langgraph): give each interrupt() in a task its own id (#9589)
• fix(langgraph): point the multiple-interrupts error at the current docs (#9590)
• feat(langgraph): add a strict resume mode that refuses stale interrupt answers (#9574)
• chore(deps-dev): bump types-requests from 2.33.0.20260906 to 2.33.0.20261006 in /libs/langgraph (#9535)
• chore(deps-dev): bump pycryptodome from 3.23.0 to 4.2.0 in /libs/langgraph in the major group (#9534)

Changes since sdk==0.4.12

• release(langgraph): 1.2.20 (#9595)
• release(sdk-py): 0.4.13 (#9594)
• feat(sdk-py): add cancel_reason to Run (#9571)
• docs(sdk-py): show the run's status in the stream example's end event (#9588)
• feat(sdk-py): add select to threads.get_state and get_history (#9568)