Revert "Update RELEASE.md (#3520)" (#3523)

This reverts commit ad48ad2.

Author: dhruvesh09

RELEASE.md

@@ -2,28 +2,67 @@
 
 ## Major Features and Improvements
 
-*  N/A
+*  Added a simple query based driver that supports Span spec and static_range.
+*  Added e2e rolling window example/test for Span Resolver.
+*  Performance improvement in Transform by avoiding excess encodings and
+   decodings when it materializes transformed examples or generates statistics
+   (both enabled by default).
+*  Added an accessor (`.data_view_decode_fn`) to the decoder function wrapped in
+   the DataView in Trainer `FnArgs.data_accessor`.
 
 ## Breaking Changes
 
-*  N/A
+*   Starting in this version, following artifacts will be stored in new format,
+    but artifacts produced by older versions can be read in a backwards
+    compatible way:
+    *   Change split sub-folder format to 'Split-<split_name>', this applies to
+        all artifacts that contain splits. Old format '<split_name>' can still
+        be loaded by TFX.
+    *   Change Model artifact's sub-folder name to 'Format-TFMA' for eval model
+        and 'Format-Serving' for serving model. Old Model artifact format
+        ('eval_model_dir'/'serving_model_dir') can still be loaded by TFX.
+    *   Change ExampleStatistics artifact payload to binary proto
+        FeatureStats.pb file. Old payload format (tfrecord stats_tfrecord file)
+        can still be loaded by TFX.
+    *   Change ExampleAnomalies artifact payload to binary proto SchemaDiff.pb
+        file. Old payload format (text proto anomalies.pbtxt file) is deprecated
+        as TFX doesn't have downstream components that take ExampleAnomalies
+        artifact.
+
 
 ### For Pipeline Authors
 
-*  N/A
+*  CLI requires Apache Airflow 1.10.14 or later. If you are using an older
+   version of airflow, you can still copy runner definition to the DAG
+   directory manually and run using airflow UIs.
 
 ### For Component Authors
 
 *   N/A
 
 ## Deprecations
 
-*  N/A
+*   Deprecated input/output compatibility aliases for Transform and
+    StatisticsGen.
 
 ## Bug Fixes and Other Changes
 
-*   Fix in the component colabs.
+*   The `tfx_version` custom property of output artifacts is now set by the
+    default publisher to the TFX SDK version.
+*   Depends on `absl-py>=0.9,<0.13`.
+*   Depends on `kfp-pipeline-spec>=0.1.7,<0.2`.
+*   Depends on `ml-metadata>=0.29.0,<0.30.0`.
+*   Depends on `packaging>=20,<21`.
+*   Depends on `struct2tensor>=0.29.0,<0.30.0`.
+*   Depends on `tensorflow-data-validation>=0.29.0,<0.30.0`.
+*   Depends on `tensorflow-model-analysis>=0.29.0,<0.30.0`.
+*   Depends on `tensorflow-transform>=0.29.0,<0.30.0`.
+*   Depends on `tfx-bsl>=0.29.0,<0.30.0`.
 
 ## Documentation Updates
 
-*  N/A
+*   Simplified Apache Spark and Flink example deployment scripts by using Beam's
+    SparkRunner and FlinkRunner classes.
+*   Upgraded example Apache Flink deployment to Flink 1.12.1.
+*   Upgraded example Apache Spark deployment to Spark 2.4.7.
+*   Added the "TFX Python function component" notebook tutorial.