Release Notes for v25.4-v25.4.0-beta.3 (#20565)

* Update release notes for v25.4-v25.4.0-beta.3

* Update release notes for v25.4-v25.4.0-beta.3

* Update release notes for v25.4-v25.4.0-beta.3

* Update release notes for v25.4-v25.4.0-beta.3

* Update release notes for v25.4-v25.4.0-beta.3

* Update release notes for v25.4-v25.4.0-beta.3

* Update release notes for v25.4-v25.4.0-beta.3

* Update release notes for v25.4-v25.4.0-beta.3

* Update release notes for v25.4-v25.4.0-beta.3

---------

Co-authored-by: Automated Release Bot <releasebot@cockroachlabs.com>
Co-authored-by: Florence Morris <58752716+florence-crl@users.noreply.github.com>

Author: 3 people

src/current/_data/releases.yml

@@ -9589,3 +9589,31 @@
     docker_arm_limited_access: false
   source: true
   previous_release: v25.4.0-beta.1
+
+
+- release_name: v25.4.0-beta.3
+  major_version: v25.4
+  release_date: '2025-10-16'
+  release_type: Testing
+  go_version: go1.23.12
+  sha: d70350c0c33cc6e0f0a58e0ec9b5e52b9ba40661
+  has_sql_only: true
+  has_sha256sum: true
+  mac:
+    mac_arm: true
+    mac_arm_experimental: true
+    mac_arm_limited_access: false
+  windows: true
+  linux:
+    linux_arm: true
+    linux_arm_experimental: false
+    linux_arm_limited_access: false
+    linux_intel_fips: true
+    linux_arm_fips: false
+  docker:
+    docker_image: cockroachdb/cockroach-unstable
+    docker_arm: true
+    docker_arm_experimental: false
+    docker_arm_limited_access: false
+  source: true
+  previous_release: v25.4.0-beta.2

src/current/_includes/releases/v25.4/v25.4.0-beta.3.md

@@ -0,0 +1,12 @@
+## v25.4.0-beta.3
+
+Release Date: October 16, 2025
+
+{% include releases/new-release-downloads-docker-image.md release=include.release %}
+
+<h3 id="v25-4-0-beta-3-bug-fixes">Bug fixes</h3>
+
+- Fixed a bug that caused internal errors for `INSERT .. ON CONFLICT .. DO UPDATE` statements when the target table had both a computed column and a `BEFORE` trigger. This bug was present since triggers were introduced in v24.3.0. [#155077][#155077]
+
+
+[#155077]: https://github.com/cockroachdb/cockroach/pull/155077