Version 1.16.0

Major Features and Improvements

Placeholder.__format__() is now disallowed, so you cannot use placeholders in f-strings and str.format() calls anymore. If you get an error from this, most likely you discovered a bug and should not use an f-string in the first place. If it is truly your intention to print the placeholder (not its resolved value) for debugging purposes, use repr() or !r instead.
Drop supports for the Estimator API.

KubeflowDagRunner (KFP v1 SDK) is deprecated. Use KubeflowV2DagRunner (KFP v2 pipeline spec) instead.
Since Estimators will no longer be available in TensorFlow 2.16 and later versions, we have deprecated examples and templates that use them. We encourage you to explore Keras as a more modern and flexible high-level API for building and training models in TensorFlow.

Package Name	Version Constraints	Previously (in `v1.15.1`)	Comments
`docker`	`>=7,<8`	`>=4.1,<5`