Release Notes for v25.4-v25.4.0-alpha.1 (#20352)

Author: release-notes-automation[bot]

src/current/_config_cockroachdb.yml

@@ -4,4 +4,4 @@ destination: _site/docs
 homepage_title: CockroachDB Docs
 versions:
   stable: v25.3
-  dev: v25.3
+  dev: v25.4

src/current/_data/releases.yml

@@ -9372,3 +9372,30 @@
     docker_arm_limited_access: false
   source: true
   previous_release: v23.2.27
+
+
+- release_name: v25.4.0-alpha.1
+  major_version: v25.4
+  release_date: '2025-09-17'
+  release_type: Testing
+  go_version: go1.23.12
+  sha: ea6772d06fc62b05b4b6e72602853a8e591bfd77
+  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