Merge pull request #63058 from tensorflow/rtg0795-patch-1

Update RELEASE.md

RELEASE.md

@@ -12,6 +12,7 @@
 
 *   `tf.estimator`
     *   The tf.estimator API is removed.
+    *   To continue using tf.estimator, you will need to use TF 2.15 or an earlier version.
 
 *   Keras 3.0 will be the default Keras version. You may need to update your script to use Keras 3.0.
 
@@ -67,14 +68,6 @@
 *  `keras.optimizers.Adam`
     * Added the option to set adaptive epsilon to match implementations with Jax and PyTorch equivalents.
 
-### Breaking Changes
-
-### Known Caveats
-
-### Major Features and Improvements
-
-### Bug Fixes and Other Changes
-
 ## Thanks to our Contributors
 
 This release contains contributions from many people at Google, as well as: