Linux firmware update utility fwupd is moving away from XZ Utils and will use zstd (Zstandard) for future releases for compressing metadata.
Linux Firmware Update Utility Fwupd Will Use Zstd Compression for Future Releases
The devs are also considering enforcing signed commits in an attempt to prevent supply chain issues like the XZ backdoor.
Edit: note for downvotes: I understand some of you disagree with the need for a switch. However, are you downvoting the news itself (i.e. shooting the messenger?)
Here, it's libzstd.so, libc and glibc, and libzstd only libc and glibc. What do you mean? At first I thought you were implying an liblzma dependency, but there's no such thing, at least can't see it.
Maybe Debian's goal is to make liblzma a dependency of everything possible? It wasn't a standard dependency of OpenSSH either, but rather something they patched in. ;)
Canonical is delaying Noble by more than a week so they can rebuild every binary in a clean environment, just in case the build process itself was affected.