Update CHANGES.md for 2.74.0

Author: Amar3tto

CHANGES.md

@@ -55,7 +55,7 @@
 * ([#X](https://github.com/apache/beam/issues/X)).
 -->
 
-# [2.73.0] - Unreleased
+# [2.74.0] - Unreleased
 
 ## Highlights
 
@@ -65,6 +65,38 @@
 ## I/Os
 
 * Support for X source added (Java/Python) ([#X](https://github.com/apache/beam/issues/X)).
+
+## New Features / Improvements
+
+* X feature added (Java/Python) ([#X](https://github.com/apache/beam/issues/X)).
+
+## Breaking Changes
+
+* X behavior was changed ([#X](https://github.com/apache/beam/issues/X)).
+
+## Deprecations
+
+* X behavior is deprecated and will be removed in X versions ([#X](https://github.com/apache/beam/issues/X)).
+
+## Bugfixes
+
+* Fixed X (Java/Python) ([#X](https://github.com/apache/beam/issues/X)).
+
+## Security Fixes
+
+* Fixed [CVE-YYYY-NNNN](https://www.cve.org/CVERecord?id=CVE-YYYY-NNNN) (Java/Python/Go) ([#X](https://github.com/apache/beam/issues/X)).
+
+## Known Issues
+
+[comment]: # ( When updating known issues after release, make sure also update website blog in website/www/site/content/blog.)
+* ([#X](https://github.com/apache/beam/issues/X)).
+
+# [2.73.0] - 2026-04-??
+
+## Highlights
+
+## I/Os
+
 * DebeziumIO (Java): added `OffsetRetainer` interface and `FileSystemOffsetRetainer` implementation to persist and restore CDC offsets across pipeline restarts, and exposed `withStartOffset` / `withOffsetRetainer` on `DebeziumIO.Read` and the cross-language `ReadBuilder` ([#28248](https://github.com/apache/beam/issues/28248)).
 
 ## New Features / Improvements
@@ -74,7 +106,6 @@
 * (Python) Added a pipeline option `--experiments=pip_no_build_isolation` to disable build isolation when installing dependencies in the runtime environment ([#37331](https://github.com/apache/beam/issues/37331)).
 * (Go) Added OrderedListState support to the Go SDK stateful DoFn API ([#37629](https://github.com/apache/beam/issues/37629)).
 * Added support for large pipeline options via a file (Python) ([#37370](https://github.com/apache/beam/issues/37370)).
-* X feature added (Java/Python) ([#X](https://github.com/apache/beam/issues/X)).
 * Supported infer schema from dataclass (Python) ([#22085](https://github.com/apache/beam/issues/22085)). Default coder for typehint-ed (or set with_output_type) for non-frozen dataclasses changed to RowCoder. To preserve the old behavior (fast primitive coder), explicitly register the type with FastPrimitiveCoder.
 * Updates minimum Go version to 1.26.1 ([#37897](https://github.com/apache/beam/issues/37897)).
 * (Python) Added image embedding support in `apache_beam.ml.rag` package ([#37628](https://github.com/apache/beam/issues/37628)).
@@ -84,25 +115,15 @@
 
 * The Python SDK container's `boot.go` now passes pipeline options through a file instead of the `PIPELINE_OPTIONS` environment variable. If a user pairs a new Python SDK container with an older SDK version (which does not support the file-based approach), the pipeline options will not be recognized and the pipeline will fail. Users must ensure their SDK and container versions are synchronized ([#37370](https://github.com/apache/beam/issues/37370)).
 
-## Deprecations
-
-* X behavior is deprecated and will be removed in X versions ([#X](https://github.com/apache/beam/issues/X)).
-
 ## Bugfixes
 
-* Fixed X (Java/Python) ([#X](https://github.com/apache/beam/issues/X)).
 * Fixed ProcessManager not reaping child processes, causing zombie process accumulation on long-running Flink deployments (Java) ([#37930](https://github.com/apache/beam/issues/37930)).
 
 ## Security Fixes
 
 * Fixed [CVE-2023-46604](https://www.cve.org/CVERecord?id=CVE-2023-46604) (CVSS 10.0) and [CVE-2022-41678](https://www.cve.org/CVERecord?id=CVE-2022-41678) by upgrading ActiveMQ from 5.14.5 to 5.19.2 (Java) ([#37943](https://github.com/apache/beam/issues/37943)).
 * Fixed [CVE-2024-1597](https://www.cve.org/CVERecord?id=CVE-2024-1597), [CVE-2022-31197](https://www.cve.org/CVERecord?id=CVE-2022-31197), and [CVE-2022-21724](https://www.cve.org/CVERecord?id=CVE-2022-21724) by upgrading PostgreSQL JDBC Driver from 42.2.16 to 42.6.2 (Java) ([#37942](https://github.com/apache/beam/issues/37942)).
 
-## Known Issues
-
-[comment]: # ( When updating known issues after release, make sure also update website blog in website/www/site/content/blog.)
-* ([#X](https://github.com/apache/beam/issues/X)).
-
 # [2.72.0] - 2026-03-30
 
 ## Highlights
@@ -2397,4 +2418,4 @@ Schema Options, it will be removed in version `2.23.0`. ([BEAM-9704](https://iss
 
 ## Highlights
 
-- For versions 2.19.0 and older release notes are available on [Apache Beam Blog](https://beam.apache.org/blog/).
+- For versions 2.19.0 and older release notes are available on [Apache Beam Blog](https://beam.apache.org/blog/).