PHP has announced that version 8 will be no longer supported
Drupal recommends everyone to switch to version 10.2.1 (which works with PHP 8 and above) which is much more reliable and successful than its predecessor, and many fixes continue to flow in.
Many servers that keep the sites in shared storage, will upgrade their PHP to 8.1 or higher, which may disable the site if no preparatory work is done.
Each release branch of PHP is fully supported for two years from its initial stable release. During this period, bugs and security issues that have been reported are fixed and are released in regular point releases.
After this two year period of active support, each branch is then supported for an additional year for critical security issues only. Releases during this period are made on an as-needed basis: there may be multiple point releases, or none, depending on the number of reports.
Once the three years of support are completed, the branch reaches its end of life and is no longer supported. A table of end of life branches is available.
