tf-keras 2.21.0 on Python PyPI

Breaking changes

Support for Python 3.9 has been removed as of version 2.21.0, the minimum Python requirement is now >=3.10. #879

Softmax Layer Enhancement: Added a robust_masking argument to the Softmax layer. This improves numerical stability during masking by preventing silent errors and unexpected behavior in cases where the provided mask deviates from standard assumptions. 1da4c43
Allow Layer.build to have a None build shape when when the layer has a None Input. #866
Functional Model Enhancement: Allow Input to be optional to allow None inputs, similar to what Keras 3 has. 924b2d0
Update rules_python to v1.6 in tf_keras 0dec184
Change to unit test logic #865
Add tensorboard as dependency #885, #890

Full Changelog: v2.20.1...v2.21.0