Release Notes for v25.2-v25.2.0-rc.1 (#19576)

Author: release-notes-automation[bot]

src/current/_data/releases.yml

@@ -9070,3 +9070,31 @@
       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: v25.2.0-rc.1
+  major_version: v25.2
+  release_date: '2025-05-12'
+  release_type: Testing
+  go_version: go1.23.7
+  sha: 4377500860ff39cc5ddf7954079ced214bd788dc
+  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: v25.2.0-beta.3

src/current/_includes/releases/v25.2/v25.2.0-rc.1.md

@@ -0,0 +1,57 @@
+## v25.2.0-rc.1
+
+Release Date: May 12, 2025
+
+{% include releases/new-release-downloads-docker-image.md release=include.release %}
+
+<h3 id="v25-2-0-rc-1-sql-language-changes">SQL language changes</h3>
+
+- Non-integer array indices are now supported in JSONPath queries (e.g., `SELECT jsonb_path_query('[1, 2, 3]', '$[2.5]');`). Indices are rounded toward 0.
+ [#144819][#144819]
+- The `vector_l2_ops` operator class can now be specified for a vector index. Because `vector_l2_ops` is the default, it is possible to omit the operator class from an index definition.
+ [#144902][#144902]
+- When creating a vector index with the `USING` syntax, `hnsw` can now be specified as the index type, although a `cspann` vector index is still provided. This change increases compatibility with third-party tools.
+ [#144902][#144902]
+- Added support for numeric JSONPath methods `.abs()`, `.floor()`, `.ceiling()`. For example, `SELECT jsonb_path_query('-0.5', '$.abs()');`.
+ [#145121][#145121]
+- Disabled `IMPORT INTO` for tables with vector indexes, because importing into vector indexes is not implemented.
+ [#145262][#145262]
+- Added support for `like_regex` flags in JSONPath queries. For example, `SELECT jsonb_path_query('{}', '"a" like_regex ".*" flag "i"');`.
+ [#145300][#145300]
+- Vector index creation is now prevented until the entire cluster upgrade has been finalized on v25.2 or later.
+ [#145449][#145449]
+
+<h3 id="v25-2-0-rc-1-bug-fixes">Bug fixes</h3>
+
+- `NULL` vectors can now be inserted into tables with vector indexes.
+ [#144858][#144858]
+- Fixed a bug that caused vector indexes to return incorrect or no results from a standby reader in a physical cluster replication (PCR) setup. This bug existed in alpha versions of v25.2 and in v25.2.0-beta.1.
+ [#145157][#145157]
+- Fixed a bug that allowed a set-returning PL/pgSQL function to be created before the version change was finalized. This bug existed in v25.2 alpha and beta releases.
+ [#145381][#145381]
+- Fixed a bug where CockroachDB could encounter an internal error when fetching from the `WITH HOLD` cursor with `FETCH FIRST` and `FETCH ABSOLUTE`. The bug was only present in v25.2 alpha and beta releases.
+ [#145409][#145409]
+
+<h3 id="v25-2-0-rc-1-performance-improvements">Performance improvements</h3>
+
+- Some internal queries executed by the jobs system are now less likely to perform full table scans of the `system.jobs` table, making them more efficient. This change can be reverted by disabling the `jobs.avoid_full_scans_in_find_running_jobs.enabled` cluster setting.
+ [#144825][#144825]
+
+<h3 id="v25-2-0-rc-1-miscellaneous">Miscellaneous</h3>
+
+- SQL queries run on the source cluster by logical data replication (LDR) and physical cluster replication (PCR) will account to internal metrics like `sql.statements.active.internal` instead of the metrics like `sql.statements.active` that are used to monitor application workload.
+ [#145111][#145111]
+
+
+[#144819]: https://github.com/cockroachdb/cockroach/pull/144819
+[#145121]: https://github.com/cockroachdb/cockroach/pull/145121
+[#145262]: https://github.com/cockroachdb/cockroach/pull/145262
+[#145300]: https://github.com/cockroachdb/cockroach/pull/145300
+[#145381]: https://github.com/cockroachdb/cockroach/pull/145381
+[#145409]: https://github.com/cockroachdb/cockroach/pull/145409
+[#145111]: https://github.com/cockroachdb/cockroach/pull/145111
+[#144902]: https://github.com/cockroachdb/cockroach/pull/144902
+[#145449]: https://github.com/cockroachdb/cockroach/pull/145449
+[#144858]: https://github.com/cockroachdb/cockroach/pull/144858
+[#145157]: https://github.com/cockroachdb/cockroach/pull/145157
+[#144825]: https://github.com/cockroachdb/cockroach/pull/144825