On Mon, 2023-06-05 at 13:05 -0500, Chris Adams wrote:
> Once upon a time, Stephen Smoogen <ssmoo...@redhat.com> said:
> > 1. What is a flatpak and what does it mean to have an application in it? Is
> > it everything bundled in it or does it use layers?
>
> It's layered, but from what I understand, an upper layer depends on a
> specific build of a lower layer. So using the up-thread example, if
> there's a security update to zlib, the lower layer can rebuild to pick
> it up, but until the upper layer (like say LO) also rebuilds on top of
> the new lower layer, they'll be running on the old version.
No, I don't believe that's accurate. It's more of a major/minor thing.
The 'lower layer' can be updated with bug and security fixes without
any rebuild or change needed to 'upper layers'. You only need a rebuild
if the 'lower layer' is doing a "major" incompatible update (this is
something the lower layer is in charge of defining).
For e.g., in my `flatpak list` right now, I have these:
Name Application ID
Version Branch Origin Installation
Fedora Platform org.fedoraproject.Platform 38
f38 fedora system
Freedesktop Platform org.freedesktop.Platform
22.08.12.1 22.08 flathub system
the "branch" there is the 'major' version. App flatpaks will say they
require "f38" Fedora platform or "22.08" Freedesktop platform, and
there can be updates within those branches (e.g. maybe I'll get
22.08.12.2 or 22.08.13.1 of the Freedesktop platform as an update)
without the app flatpaks changing. But for an app flatpak to 'rebase'
to "f39" or "23.04" (or whatever the next version is gonna be, I don't
actually know), *that* would require a rebuild.
--
Adam Williamson (he/him/his)
Fedora QA
Fedora Chat: @adamwill:fedora.im | Mastodon: @ad...@fosstodon.org
https://www.happyassassin.net
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