Released: 6 October 2026
EDB Postgres AI for ClickHouse 26.3.37.3 updates the ClickHouse server from 26.3.22.7 and updates the Kubernetes operator, MCP server, and pg_stat_ch.
ClickHouse server
| Type | Description |
|---|---|
| Upstream merge | Updated to the open-source ClickHouse 26.3.37.3 LTS release, from 26.3.22.7. |
| Feature | Added Debian 13 (trixie) .deb packages for amd64, arm64, and ppc64el, built from the same compile as the RPM packages and published alongside them. |
| Bug fix | Disabled sending crash reports and LOGICAL_ERROR exceptions to an external endpoint. The send_crash_reports configuration section is still accepted for compatibility with existing configuration files, but it no longer has any effect. |
Kubernetes operator
| Type | Description |
|---|---|
| Upstream merge | Updated to 0.27.4-2edb1, tracking upstream Altinity clickhouse-operator release-0.27.4, from 0.27.3. The EDB release adds no upstream changes. Images are tagged 0.27.4-2edb1 and the Helm chart is versioned 0.27.4+2edb1. |
| Bug fix | Updated google.golang.org/grpc to v1.84.0, golang.org/x/text to v0.42.0, and github.com/go-openapi/swag to v0.29.2 to address security vulnerabilities, including GHSA-2v4p-qf9q-27wj, GHSA-hrxh-6v49-42gf, and GHSA-vp52-pcj8-j9qc. |
| Bug fix | The Helm chart and the operator's default images now come from the production repository, docker.enterprisedb.com/clickhouse, so a default installation works with a production subscription. |
| Bug fix | The operator's default ClickHouse and Keeper image is now pinned to edb-clickhouse-server:26.3.22.7-1edb1 instead of latest, so the deployed ClickHouse version no longer changes without an operator release. |
MCP server
| Type | Description |
|---|---|
| Upstream merge | Synced to upstream v0.7.0, from v0.4.1. Highlights include connection caching, query cancellation, Host and Origin validation for HTTP and SSE, and named query parameters on run_query. Requires clickhouse-connect 1.x. See the upstream release notes for the full list of changes. |
| Feature | Added Debian 13 .deb packages for amd64 and arm64, published alongside the RPM packages. |
| Change | CLICKHOUSE_SECURE now accepts only true or false, and CLICKHOUSE_VERIFY accepts only true, false, or proxy. Other values fail at startup. |
pg_stat_ch
| Type | Description |
|---|---|
| Change | Repackaged as 0.4.0-1edb2. The upstream version remains pg_stat_ch 0.4.0. |
| Feature | Added Debian 12 (bookworm) and Debian 13 (trixie) .deb packages alongside the RPM packages. Debian 13 packages cover community PostgreSQL only. See Compatibility. |
| Bug fix | The background worker no longer registers or connects to postgres when the postmaster is started by pg_upgrade in -b mode. Previously, that open connection blocked the DROP DATABASE "postgres" step in pg_restore and caused every binary upgrade to fail when pg_stat_ch was in shared_preload_libraries. |