build(deps): bump langgraph from 1.2.12 to 1.2.15

[dependabot]

Bumps langgraph from 1.2.12 to 1.2.15.

Release notes

Sourced from langgraph's releases.

langgraph==1.2.15

Changes since 1.2.14

• release(langgraph): 1.2.15 (#9283)
• fix(langgraph): give every message written to a messages DeltaChannel an id (#9275)
• fix(langgraph): save a cached node's writes like a node that ran (#9259)
• fix(langgraph): stop at an interrupt_before breakpoint when a drain is requested before it (#9281)
• fix(langgraph): keep an exit run from a checkpoint the thread moved past out of its newer branch (#9269)
• fix(langgraph): store an update_state input's writes on the checkpoint it updates (#9258)
• fix(langgraph): read a run's DeltaChannel input back only on its own checkpoints (#9260)
• fix(langgraph): snapshot a DeltaChannel that an update_state Overwrite resets (#9263)
• fix(langgraph): keep a fork's DeltaChannel snapshot from starting nodes that never ran (#9264)
• fix(langgraph): don't save a checkpoint past a failed DeltaChannel write (#9235)
• fix(langgraph,prebuilt): stop ToolNode from swallowing invalid resume values (#9232)
• fix(langgraph): never store exit-mode delta writes under the null task id (#9229)
• fix(langgraph): stop astream_events dropping control/interrupts on v1/v2 (#9219)
• chore(deps): bump notebook from 7.5.7 to 7.6.3 in /libs/langgraph (#9206)
• fix(langgraph): give each bulk_update_state update its own task id (#9128)
• fix(langgraph): replay a resumed exit-mode run's delta writes in live order (#9114)
• fix: order delta channel replay by task path (#8544)

langgraph==1.2.14

Changes since 1.2.13

• release(langgraph): 1.2.14 (#9215)

langgraph==1.2.13

Changes since 1.2.12

• fix(langgraph): fork before replaying an update checkpoint the thread moved past (#9170)
• fix(langgraph): keep an update_state on an older checkpoint out of its other branches (#9165)
• fix(langgraph): keep DeltaChannel counters on every update_state path (#9142)
• release(langgraph): 1.2.13 (#9205)
• fix(langgraph): don't walk history for a DeltaChannel that was never written (#9141)
• fix(langgraph): don't replay an abandoned branch into a DeltaChannel fork (#8548)
• chore(deps): bump notebook from 7.5.6 to 7.5.7 in /libs/langgraph (#9168)
• fix(langgraph): hydrate subgraph delta channels with the caller-resolved saver (#8538)
• fix(langgraph): stop reporting answered interrupts in get_state (#9103)
• chore(deps-dev): bump the minor-and-patch group across 1 directory with 5 updates (#9155)
• chore(deps-dev): bump the minor-and-patch group in /libs/checkpoint-conformance with 2 updates (#9145)
• chore(deps): bump the minor-and-patch group in /libs/sdk-py with 5 updates (#9149)
• chore(deps): bump tornado from 6.5.8 to 6.5.9 in /libs/langgraph (#9160)
• chore(deps-dev): bump types-requests from 2.33.0.20260712 to 2.33.0.20260906 in /libs/langgraph (#9156)
• chore(deps): bump pyjwt from 2.15.0 to 2.15.1 in /libs/langgraph (#9140)
• chore(deps): bump urllib3 from 2.7.0 to 2.8.0 in /libs/langgraph (#9138)
• chore(deps): bump pyjwt from 2.14.0 to 2.15.0 in /libs/langgraph (#9139)
• chore(deps): bump pyjwt from 2.13.0 to 2.14.0 in /libs/langgraph (#9126)

Commits

• 08a3456 release(langgraph): 1.2.15 (#9283)
• b7d053b fix(langgraph): give every message written to a messages DeltaChannel an id (...
• 395c145 fix(langgraph): save a cached node's writes like a node that ran (#9259)
• 10f1fab fix(langgraph): stop at an interrupt_before breakpoint when a drain is reques...
• 799c2f0 fix(langgraph): keep an exit run from a checkpoint the thread moved past out ...
• b4991f1 fix(langgraph): store an update_state input's writes on the checkpoint it upd...
• 6aa0afb fix(checkpoint): default InMemorySaver delta history to the latest checkpoint...
• 12aeb0f fix(langgraph): read a run's DeltaChannel input back only on its own checkpoi...
• d05236f fix(langgraph): snapshot a DeltaChannel that an update_state Overwrite resets...
• 9d92f33 fix(langgraph): keep a fork's DeltaChannel snapshot from starting nodes that ...
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