release-candidate

PostgreSQL 19 RC 1, posted October 15, sets general availability for November 19, 2026, and plans RC 2 for November 12 alongside the next scheduled update release.

The Qwik team's 2.0.0-rc.3 release notes, published October 13, list six core fixes and nine router changes, including less state serialized into every page.

Solid's release notes for 2.0.0-rc.15, tagged October 13, 2026, describe fixes for server-render context under concurrent requests, a mid-parse hydrate() change and a new experimental link-state API for routers.

Vue 3.6.0-rc.11, published October 10, lists 58 bug fixes, one feature and two performance items; 59 of the 61 entries are Vapor-scoped. It remains a pre-release.

Python 3.15.0rc1 shipped August 4 with the feature set frozen and no further ABI changes allowed, as the release team targets an October 1 final.