The langgraph-checkpoint package has been updated to version 4.2.0, introducing a new feature for managing checkpoint data.
- Adds an `omit_expired` option to skip expired rows during reads in both `checkpoint` and `checkpoint-postgres`.
- Fixes an issue where writes were not correctly collected at the plain-value seed in delta channel history.
- Includes dependency updates for langsmith and other minor-and-patch groups within /libs/checkpoint.
- Migrates Python type checking to the `ty` tool and enforces PLC0415 in tests.
This release allows users to optimize read performance by excluding expired data, while also addressing a bug in delta channel history handling.