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Next point release for 12.6 has been postponed
(micronews.debian.org)
Debian is a free operating system (OS) for your computer. An operating system is the set of basic programs and utilities that make your computer run. Debian provides more than a pure OS: it comes with over 59000 packages, precompiled software bundled up in a nice format for easy installation on your machine.
Good question. Maybe it has to do with the fact that the backdoor contributor was on the xz project for about two years.
Yep. All distros are rolling-back to before JiaT75 was involved.