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DuckDB

ANALYTICS
Velocity2.5

In-process analytical SQL database engine

duckdb.org ↗

Six releases, all patches — this window shows DuckDB's maintenance machine, not its roadmap

olapembedded-databasepatch-releasesdual-branchbackports
◆Current state
Every entry in this window is a bugfix release, and two release lines are being maintained side by side: 1.5.5, 1.5.4, 1.5.3, 1.5.2 and 1.5.1 on the current branch, with 1.4.5 shipped the same day as 1.5.4 for users still on the older line. The content is backports, race-condition fixes, extension and build plumbing, and in 1.5.5 a backport of out-of-bounds security fixes. Feature releases sit outside this window, so what is visible is the patch cadence rather than the direction.
◆Where it's heading
The pattern is a project treating its previous minor as a supported branch rather than abandoning it — same-day 1.4.5 and 1.5.4 releases, with fixes explicitly backported from the newer line. Patch spacing has tightened over the window, from roughly two months between 1.5.1 and 1.5.2 to about five weeks between 1.5.4 and 1.5.5. Each release also points at an announcement blog post, so the substantive narrative lives off the feed.
◆Prediction
The visible entries only support a continuation of the same pattern: further patch releases on both the 1.5 and 1.4 lines, with fixes backported between them. Nothing in this window signals what the next feature release contains.

◆Recent moves

  1. 10d ago

    DuckDB v1.5.5 Bugfix Release

    A patch release for issues found after 1.5.4, notable mainly for backporting out-of-bounds security fixes onto this branch. The rest is dependency cleanup and debugging tooling, so the security content is the reason to take it.

    View source ↗
  2. 1mo ago

    DuckDB v1.5.4 Bugfix Release

    Routine bugfixes after 1.5.3, largely backports and destructor cleanup. Shipped the same day as 1.4.5, which is the clearest sign both lines are actively maintained rather than one being frozen.

    View source ↗
  3. 1mo ago

    DuckDB v1.4.5 Bugfix Release

    The older 1.4 line gets its own patch on the same day as 1.5.4, covering secret-manager idempotency and filesystem API use in the query profiler. Maintenance for users who have not moved to 1.5.

    View source ↗
  4. 2mo ago

    DuckDB v1.5.3 Bugfix Release

    Bugfixes after 1.5.2 including a DuckLake bump and an ADBC ingest fix for catalog resolution shadowing temp tables. Ordinary patch content in a window made entirely of patch releases.

    View source ↗
  5. 3mo ago

    DuckDB v1.5.2 Bugfix Release

    A patch dominated by race-condition backports to the 1.4 branch plus build and extension-caching plumbing. Internal stability work with no user-visible surface change.

    View source ↗
  6. 4mo ago

    DuckDB v1.5.1 Bugfix Release

    The first patch after 1.5.0, fixing view bind-state restoration on failure and small CLI and benchmark issues. The oldest release in the window and the start of the patch run that fills it.

    View source ↗