Status of Ubuntu Mesa backports

It’s been quite a while since the last post about Mesa backports, so here’s a quick update on where we are now.

Ubuntu 18.04 was released with Mesa 18.0.0 which was built against libglvnd. This complicates things a bit when it comes to backporting Mesa to 16.04, because the packaging has changed a bit due to libglvnd and would break LTS->LTS upgrades without certain package updates.

So we first need to make sure 18.04 gets Mesa 18.0.5 (which is the last of the series, so no version bumps expected until the backport from 18.10) along with an updated libglvnd which bumps the Breaks/Replaces on old package versions to ensure that xenial -> bionic upgrade will go smoothly once 18.0.5 is backported to xenial, which will in fact be in -proposed soon.

What this also means is that the only release getting new Mesa backports via the x-updates PPA from now on is 18.04. And I’ve pushed Mesa 18.1.1 there today, enjoy!

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