kedro-org/kedro 1.4.0 on GitHub

Major features and improvements

Add official support for Python 3.14.
Added the first iteration of the KedroServiceSession, a new session implementation that allows for multiple runs and data injection.
NOTE: This session implementation is under active development and may occasionally contain bugs or breaking changes. We encourage users to try it out and share their feedback with us.
Added inspection API to get project snapshot.
Improved %load_node to include same-module helper dependencies via AST extraction, with explicit fallback warnings when extraction degrades to function-only source loading.
Scoped parameter type-hint validation to the pipelines being run. When kedro run --pipelines=<name> runs one or more named pipelines, only those pipelines' node signatures are inspected for type hints, avoiding unnecessary work and spurious "conflicting type" warnings from pipelines that aren't executing.

Fixed parameter validation for optional typed params so explicit None values are preserved and do not trigger validation errors.
Added review-kedro-pr agent skill (Cursor, GitHub Copilot) for Kedro-aware PR review with optional GitHub comment posting.
Removed outdated TRANSCODING_SEPARATOR alias from kedro.pipeline.pipeline.
Added an optional pydantic dependency extra, allowing users to enable Pydantic support with pip install "kedro[pydantic]".
Fixed parameter validation for namespaced pipelines.
Fixed runners iterating over iterable-but-non-generator node outputs (e.g. mne.Epochs) before saving them. Streaming behaviour is now restricted to generator-function nodes, so custom business objects are passed to catalog.save unchanged.

Added documentation for KedroServiceSession.
Updated the API documentation for kedro.framework.session to include the new KedroServiceSession and AbstractSession classes.
Added security model documentation covering trust boundaries, user responsibilities, and framework vulnerabilities.
Updated advanced_configuration.md with custom loader info.