https://www.php.net/archive/2026.php#2026-10-20-1 states:
The PHP security team would like to give advance notice of an upcoming
security release.
It is scheduled for Wednesday, 21 October 2026 at 14:00 UTC.
It addresses two critical vulnerabilities, both rated CVSS v4.0 9.2.
All PHP users are encouraged to prepare now so they can upgrade as soon
as the release is available.
We reserve the right to release earlier should details of either
vulnerability become public, or should evidence of active exploitation
appear in the wild.
Full details, affected versions, and the fixed versions will be
published with the release.
Thank you for helping us keep PHP secure.
