Update release notes for v25.4-v25.4.0-beta.2

Author: Automated Release Bot

src/current/_data/releases.yml

@@ -9561,3 +9561,31 @@
     docker_arm_limited_access: false
   source: true
   previous_release: v25.4.0-alpha.2
+
+
+- release_name: v25.4.0-beta.2
+  major_version: v25.4
+  release_date: '2025-10-10'
+  release_type: Testing
+  go_version: go1.23.12
+  sha: c9fbbfff437b9283883a269402038f5952cc4863
+  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.1