Ubuntu 25.10 to Introduce Architecture Variants for Optimized x86-64-v3 Packages
By
WhyNotHugo
Sketches a bagel but doesn't bake it through.
Summary
Ubuntu is introducing architecture variants in version 25.10, allowing packages to be built for different x86-64 architecture levels. This enables optimized packages specifically targeting modern x86-64-v3 architecture on an opt-in basis, achieved through changes to dpkg, apt, and Launchpad.
Key quotes
· 3 pulledBy making changes to dpkg, apt and Launchpad, we are able to build multiple versions of a package, each for a different level of the x86-64 architecture
we can have packages that specifically target x86-64-v3, for example
in Ubuntu 25.10, some packages are available, on an opt-in basis, in their optimized form for the more modern x86-64-v3 architecture level
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