v22.2.18 release notes (#18275)

src/current/_data/releases.yml

@@ -5406,3 +5406,30 @@
     docker_arm_limited_access: false
   source: true
   previous_release: v23.2.0-rc.2
+
+- release_name: v22.2.18
+  major_version: v22.2
+  release_date: '2024-02-08'
+  release_type: Production
+  go_version: go1.21
+  sha: 7c7aabc375626620cc7374eb6c155d251bc1f528
+  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: false
+    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: v22.2.17

src/current/_includes/releases/v22.2/v22.2.18.md

@@ -0,0 +1,22 @@
+## v22.2.18
+
+Release Date: February 8, 2024
+
+{% include releases/release-downloads-docker-image.md release=include.release %}
+
+<h3 id="v22-2-18-bug-fixes">Bug fixes</h3>
+
+- Fixed a bug that could cause [`DELETE`](https://www.cockroachlabs.com/docs/v22.2/delete.html) queries sent by the [row-level TTL job](https://www.cockroachlabs.com/docs/v22.2/row-level-ttl.html) to use a [secondary index](https://www.cockroachlabs.com/docs/v22.2/schema-design-indexes.html) rather than the [primary index](https://www.cockroachlabs.com/docs/v22.2/indexes.html) to find the rows to delete. This could lead to some `DELETE` operations taking longer than expected. This bug was present since v22.2.0. [#118420][#118420]
+- Fixed a bug where a [changefeed](https://www.cockroachlabs.com/docs/v22.2/change-data-capture-overview.html) could omit events in rare cases, logging the error `cdc ux violation: detected timestamp ... that is less or equal to the local frontier`. This could happen in the following scenario:
+    1. A [rangefeed](https://www.cockroachlabs.com/docs/v22.2/create-and-configure-changefeeds.html#enable-rangefeeds) runs on a follower [replica](https://www.cockroachlabs.com/docs/v22.2/architecture/glossary#cockroachdb-architecture-terms) that lags significantly behind the [leaseholder](https://www.cockroachlabs.com/docs/v22.2/architecture/glossary#cockroachdb-architecture-terms).
+    1. A transaction commits and removes its transaction record before its [intent](https://www.cockroachlabs.com/docs/v22.2/architecture/transaction-layer#writing) resolution is applied on the follower.
+    1. The follower's [closed timestamp](https://www.cockroachlabs.com/docs/v22.2/architecture/transaction-layer#closed-timestamps) has advanced past the transaction commit timestamp.
+    1. The rangefeed attempts to push the transaction to a new timestamp (at least 10 seconds after the transaction began).
+    1. This may cause the rangefeed to prematurely emit a checkpoint before emitting writes at lower timestamps, which in turn may cause the [changefeed](https://www.cockroachlabs.com/docs/v22.2/change-data-capture-overview#how-does-an-enterprise-changefeed-work) to drop these events entirely, never emitting them. [#118633][#118633]
+
+<h3 id="v22-2-18-contributors">Contributors</h3>
+
+This release includes 7 merged PRs by 3 authors.
+
+[#118420]: https://github.com/cockroachdb/cockroach/pull/118420
+[#118633]: https://github.com/cockroachdb/cockroach/pull/118633