Nothing dramatic here, and that's rather the point. ClickHouse pushed yet another batch of point releases across its 26.3, 26.7, 26.8 and 26.9 lines on October 10–12 — the second such train this month. It's the steady maintenance cadence that makes pinning an exact build in production a habit worth keeping rather than a chore. Read the per-build notes on GitHub before you bump; the fixes are small, but so is the effort to check.