Update release notes for v25.1-v25.1.0-beta.1

src/current/_includes/releases/v25.1/v25.1.0-beta.1.md

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+## v25.1.0-beta.1
+
+Release Date: January 16, 2025
+
+{% include releases/new-release-downloads-docker-image.md release=include.release %}
+
+<h3 id="v25-1-0-beta-1-sql-language-changes">SQL language changes</h3>
+
+- when a user runs CREATE LOGICALLY REPLICATED TABLE,
+  they must specify one of the following options:
+  - UNIDIRECTIONAL: setups a unidirectional stream with fast initial scan
+  - BIDIRECTIONAL ON {dest uri}: sets up a bidirectional stream from the original
+    dest to the original source. [#138297][#138297]
+- LDR and PCR may use the `crdb_route=gateway`
+  query option to route the replication streams over a load balancer.
+
+  Epic: CRDB-40896 [#138697][#138697]
+
+<h3 id="v25-1-0-beta-1-operational-changes">Operational changes</h3>
+
+- The cluster setting
+  `changefeed.frontier_highwater_lag_checkpoint_threshold` has been
+  renamed to `changefeed.span_checkpoint.lag_threshold`. The old name
+  remains available for backwards-compatibility. [#139064][#139064]
+- the `node decommission` cli command now waits
+  until the target node is drained before marking it as fully
+  decommissioned. Previously, it would start drain but not wait, leaving
+  the target node briefly in a state where it would be unable to
+  communicate with the cluster but would still accept client requests
+  (which would then hang or hit unexpected errors). [#138732][#138732]
+
+<h3 id="v25-1-0-beta-1-bug-fixes">Bug fixes</h3>
+
+- Fixed a bug where columns created with GENERATED
+  ... BY IDENTITY with the SERIAL type could incorrectly fail internal
+  validations. [#139084][#139084]
+- Bounded memory leak that could previously occur
+  when evaluating some memory-intensive queries via the vectorized engine
+  in CockroachDB has now been fixed. The leak has been present since 20.2
+  version. [#138804][#138804]
+
+<h3 id="v25-1-0-beta-1-build-changes">Build changes</h3>
+
+- Roll back the use of PGO for releases. We
+  plan to implement this instead for 25.2. Testing the file changes to check if changes are reflected on Database
+ [#139092][#139092]
+
+
+[#139084]: https://github.com/cockroachdb/cockroach/pull/139084
+[#138804]: https://github.com/cockroachdb/cockroach/pull/138804
+[#139092]: https://github.com/cockroachdb/cockroach/pull/139092
+[#138297]: https://github.com/cockroachdb/cockroach/pull/138297
+[#138697]: https://github.com/cockroachdb/cockroach/pull/138697
+[#139064]: https://github.com/cockroachdb/cockroach/pull/139064
+[#138732]: https://github.com/cockroachdb/cockroach/pull/138732