Release Notes for v25.4-v25.4.6

src/current/_data/releases.yml

@@ -10671,3 +10671,73 @@
     docker_arm_limited_access: false
   source: true
   previous_release: v24.3.27
+
+
+- release_name: v26.1.1
+  major_version: v26.1
+  release_date: '2026-03-09'
+  release_type: Production
+  go_version: go1.25.5
+  sha: 5abbbd24fcc2c7873fb0f985ccea68b7abaa6afe
+  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
+    docker_arm: true
+    docker_arm_experimental: false
+    docker_arm_limited_access: false
+  source: true
+  previous_release: v26.1.0
+  cloud_only: true
+  cloud_only_message_short: 'Available only for select CockroachDB Cloud clusters'
+  cloud_only_message: >
+      This version is currently available only for select
+      CockroachDB Cloud clusters. To request to upgrade
+      a CockroachDB self-hosted cluster to this version,
+      [contact support](https://support.cockroachlabs.com/hc/requests/new).
+
+
+- release_name: v25.4.6
+  major_version: v25.4
+  release_date: '2026-03-09'
+  release_type: Production
+  go_version: go1.25.5
+  sha: 2c0bb76568232c012a617fe5affcf3149a377a95
+  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
+    docker_arm: true
+    docker_arm_experimental: false
+    docker_arm_limited_access: false
+  source: true
+  previous_release: v25.4.5
+  cloud_only: true
+  cloud_only_message_short: 'Available only for select CockroachDB Cloud clusters'
+  cloud_only_message: >
+      This version is currently available only for select
+      CockroachDB Cloud clusters. To request to upgrade
+      a CockroachDB self-hosted cluster to this version,
+      [contact support](https://support.cockroachlabs.com/hc/requests/new).

src/current/_includes/releases/v25.4/v25.4.6.md

@@ -0,0 +1,21 @@
+## v25.4.6
+
+Release Date: March 9, 2026
+
+{% include releases/new-release-downloads-docker-image.md release=include.release %}
+
+<h3 id="v25-4-6-bug-fixes">Bug fixes</h3>
+
+- Fixed a bug in which PL/pgSQL UDFs with many IF statements would cause a timeout and/or OOM when executed from a prepared statement. This bug was introduced in versions v23.2.22, v24.1.15, v24.3.9, v25.1.2, and v25.2.0. [#162559][#162559]
+- Fixed a bug where generating a debug zip could trigger an out-of-memory (OOM) condition on a node if malformed log entries were present in logs using `json` or `json-compact` formatting. This bug was introduced in v24.1. [#163352][#163352]
+- Fixed a rare data race during parallel constraint checks where a fresh descriptor collection could resolve a stale enum type version. This bug was introduced in v26.1.0. [#163960][#163960]
+
+<h3 id="v25-4-6-performance-improvements">Performance improvements</h3>
+
+- Improved changefeed checkpointing performance when changefeeds are lagging. Previously, checkpoint updates could be redundantly applied multiple times per checkpoint operation. [#163282][#163282]
+
+
+[#162559]: https://github.com/cockroachdb/cockroach/pull/162559
+[#163352]: https://github.com/cockroachdb/cockroach/pull/163352
+[#163960]: https://github.com/cockroachdb/cockroach/pull/163960
+[#163282]: https://github.com/cockroachdb/cockroach/pull/163282