Wiki - https://fedoraproject.org/wiki/Changes/ZlibNG-2.2
Discussion Thread -
https://discussion.fedoraproject.org/t/f42-change-proposal-zlibng-2-2-system-wide/133141
This is a proposed Change for Fedora Linux.
This document represents a proposed Change. As part of the Changes
process, proposals are publicly announced in order to receive
community feedback. This proposal will only be implemented if approved
by the Fedora Engineering Steering Committee.
= Update Zlib-ng to version 2.2.x =
{{Change_Proposal_Banner}}
== Summary ==
Update Zlib-ng on Fedora 42 to version 2.2.x.
Currently, Fedora distributes Zlib-ng 2.1.7.
== Owner ==
* Name: [[User:tuliom| Tulio Magno Quites Machado Filho]],
[[User:ljavorsk| Lukas Javorsky]], [[User:aekoroglu| Ali Erdinc
Koroglu]]
* Email: tul...@redhat.com, ljavo...@redhat.com, ali.erdinc.koro...@intel.com
== Detailed Description ==
Update zlib-ng to the latest version from branch 2.2.x. Currently,
that's version 2.2.2, but it could change until the release
considering that updates on the same branch are expected to be API/ABI
stable.
The PR for the rebase:
https://src.fedoraproject.org/rpms/zlib-ng/pull-request/26
== Feedback ==
Early feedback from community in
[https://lists.fedoraproject.org/archives/list/de...@lists.fedoraproject.org/thread/RMR7YMJ646V6CJOKQNXUMDCK6NFNZZGX/
fedora devel mailing list]
== Benefit to Fedora ==
Major version 2.2.x provides new optimizations, rewrites deflate
memory allocation and improves the buildsystem and tests.
More details are available in the following pages:
* https://github.com/zlib-ng/zlib-ng/releases/tag/2.2.0
* https://github.com/zlib-ng/zlib-ng/releases/tag/2.2.1
* https://github.com/zlib-ng/zlib-ng/releases/tag/2.2.2
Discussion about changes is in:
* https://github.com/zlib-ng/zlib-ng/discussions/1796
== Scope ==
* Proposal owners: New zlib-ng packages will be built. The SONAME
version was not bumped (no side-tag rebase needed).
* Other developers: Check if their packages continue to work as
expected and report issues using Bugzilla.
* Release engineering: [https://pagure.io/releng/issues #Releng issue number]
* Policies and guidelines: N/A (not needed for this Change)
* Trademark approval: N/A (not needed for this Change)
* Alignment with the Fedora Strategy: <!-- TODO: Review this new item -->
== Upgrade/compatibility impact ==
Considering that API and ABI are expected to be kept the same, no
impacts are expected.
== Early Testing (Optional) ==
Do you require 'QA Blueprint' support? N
An initial test has already been executed on
[https://copr.fedorainfracloud.org/coprs/ljavorsk/zlib-ng-rebase/
CentOS Stream 10 Copr].
Further testing for Fedora in
[https://copr.fedorainfracloud.org/coprs/ljavorsk/zlib-ng-rebase-fedora/
Fedora Copr]
== How To Test ==
== User Experience ==
== Dependencies ==
There are 1300 packages that depends on zlib-ng library, thus listing
them here would spam the whole page.
The list was gathered using command (on the Fedora Rawhide machine):
`repoquery --whatdepends zlib-* --source | pkgname`
All of these dependencies are being rebuilt against the new zlib-ng
version in
[https://copr.fedorainfracloud.org/coprs/ljavorsk/zlib-ng-rebase-fedora/
Fedora Copr project]
== Contingency Plan ==
If we find zlib-ng 2.2.x is not suitable for Fedora 42, we will revert
back to version 2.1.x.
* Contingency mechanism: Revert back to version 2.1.x and increment to epoch
* Contingency deadline: Fedora 42 branching from Rawhide.
* Blocks release? No
== Documentation ==
Release notes added to the upstream tags mentioned in "Benefits" part
of this change.
== Release Notes ==
--
Aoife Moloney
Fedora Operations Architect
Fedora Project
Matrix: @amoloney:fedora.im
IRC: amoloney
--
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