Due to ext4 file system data corruption, Linux distribution Debian skipped version 12.3 to 12.4
Thanks to CTOnews.com netizen OC_Formula for clue delivery! CTOnews.com December 11 news, Linux distribution Debian official announcement on December 9, due to kernel 6.1.64-1 ext4 file system data corruption problem, suspended December 9 Debian 12.3 release mirror, while repair.
Debian officials said at the time not to do any system upgrades and strongly advised users who configured unattended upgrades to be cautious.
The Debian bug report on this incident describes it as "non-critical data loss" and therefore recoverable.
CTOnews.com found that on December 10th, Debian officially released another announcement, indicating that the mirror network has been completely updated, and fixes have been made in the latest Debian 12.4. Debian 12.4 has been released with kernel-image-6.1.0-15 (6.1.66) and fixes some other bugs.