checkpoint==2.0.1

langgraph-checkpoint 2.0.1

Summary of Changes

• Fixed documentation for Item class parameter (#1985)
• Improved namespace validation with better error handling and constraints (#1957, #1960, #1961, #2007)
• Added namespace validation to AsyncBatchedBaseStore.aput method (#2017)

Detailed Changes

langgraph.store.base.Item

• Fixed documentation for the key parameter which was previously missing its name in the docstring (#1985)

langgraph.store.base.BaseStore

• Enhanced namespace validation with multiple additional checks (#1957, #1960, #1961, #2007):
  • Namespaces cannot be empty
  • Namespace labels must be strings
  • Namespace labels cannot be empty strings
  • Namespace labels cannot contain periods ('.')
  • The root label of a namespace cannot be "langgraph"
  • Improved error messages with more context about the invalid namespace

langgraph.store.base.batch.AsyncBatchedBaseStore

• Added namespace validation to the aput method to ensure consistent validation across the codebase (#2017)