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This should link to your home wiki page so we know who you are.
This should link to your home wiki page so we know who you are.
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* Name: [[User:tuliom| Tulio Magno Quites Machado Filho]], [[User:ljavorsk| Lukas Javorsky]]
* Name: [[User:tuliom| Tulio Magno Quites Machado Filho]], [[User:ljavorsk| Lukas Javorsky]], [[User:aekoroglu| Ali Erdinc Koroglu]]
<!-- Include you email address that you can be reached should people want to contact you about helping with your change, status is requested, or technical issues need to be resolved. If the change proposal is owned by a SIG, please also add a primary contact person. -->
<!-- Include you email address that you can be reached should people want to contact you about helping with your change, status is requested, or technical issues need to be resolved. If the change proposal is owned by a SIG, please also add a primary contact person. -->
* Email: tuliom@redhat.com, ljavorsk@redhat.com
* Email: tuliom@redhat.com, ljavorsk@redhat.com, ali.erdinc.koroglu@intel.com


<!--- UNCOMMENT only for Changes with assigned Shepherd (by FESCo)
<!--- UNCOMMENT only for Changes with assigned Shepherd (by FESCo)
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<!-- Expand on the summary, if appropriate.  A couple sentences suffices to explain the goal, but the more details you can provide the better. -->
<!-- Expand on the summary, if appropriate.  A couple sentences suffices to explain the goal, but the more details you can provide the better. -->
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.
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 ==
== Feedback ==
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* https://github.com/zlib-ng/zlib-ng/releases/tag/2.2.2
* 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 ==
== Scope ==
* Proposal owners: New zlib-ng packages will be built. SONAME will not change.
* Proposal owners: New zlib-ng packages will be built. The SONAME version was not bumped (no side-tag rebase needed).
<!-- What work do the feature owners have to accomplish to complete the feature in time for release?  Is it a large change affecting many parts of the distribution or is it a very isolated change? What are those changes?-->
<!-- What work do the feature owners have to accomplish to complete the feature in time for release?  Is it a large change affecting many parts of the distribution or is it a very isolated change? What are those changes?-->


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Do you require 'QA Blueprint' support? N
Do you require 'QA Blueprint' support? N


An initial test has already been executed on [https://copr.fedorainfracloud.org/coprs/ljavorsk/zlib-ng-rebase/ Copr].
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 ==
== How To Test ==
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<!-- REQUIRED FOR SYSTEM WIDE CHANGES -->
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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 ==
== Contingency Plan ==
<!-- If you cannot complete your feature by the final development freeze, what is the backup plan?  This might be as simple as "Revert the shipped configuration".  Or it might not (e.g. rebuilding a number of dependent packages).  If you feature is not completed in time we want to assure others that other parts of Fedora will not be in jeopardy.  -->
If we find zlib-ng 2.2.x is not suitable for Fedora 42, we will revert back to version 2.1.x.


<!-- If you cannot complete your feature by the final development freeze, what is the backup plan?  This might be as simple as "Revert the shipped configuration".  Or it might not (e.g. rebuilding a number of dependent packages).  If you feature is not completed in time we want to assure others that other parts of Fedora will not be in jeopardy.  -->
* Contingency mechanism: Revert back to version 2.1.x and increment to epoch
* Contingency mechanism: (What to do?  Who will do it?) N/A (not a System Wide Change)  <!-- REQUIRED FOR SYSTEM WIDE CHANGES -->
<!-- When is the last time the contingency mechanism can be put in place?  This will typically be the beta freeze. -->
<!-- When is the last time the contingency mechanism can be put in place?  This will typically be the beta freeze. -->
* Contingency deadline: N/A (not a System Wide Change)  <!-- REQUIRED FOR SYSTEM WIDE CHANGES -->
* Contingency deadline: Fedora 42 branching from Rawhide.
<!-- Does finishing this feature block the release, or can we ship with the feature in incomplete state? -->
<!-- Does finishing this feature block the release, or can we ship with the feature in incomplete state? -->
* Blocks release? N/A (not a System Wide Change), Yes/No <!-- REQUIRED FOR SYSTEM WIDE CHANGES -->
* Blocks release? No




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<!-- REQUIRED FOR SYSTEM WIDE CHANGES -->
<!-- REQUIRED FOR SYSTEM WIDE CHANGES -->
N/A (not a System Wide Change)
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== Release Notes ==
== Release Notes ==

Latest revision as of 15:05, 25 September 2024


Update Zlib-ng to version 2.2.x

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.

Summary

Update Zlib-ng on Fedora 42 to version 2.2.x. Currently, Fedora distributes Zlib-ng 2.1.7.

Owner


Current status

  • Targeted release: Fedora Linux 42
  • Last updated: 2024-09-25
  • [Announced]
  • [<will be assigned by the Wrangler> Discussion thread]
  • FESCo issue: <will be assigned by the Wrangler>
  • Tracker bug: <will be assigned by the Wrangler>
  • Release notes tracker: <will be assigned by the Wrangler>

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

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:

Discussion about changes is in:

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.
  • Policies and guidelines: N/A (not needed for this Change)
  • Trademark approval: N/A (not needed for this Change)
  • Alignment with the Fedora Strategy:

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 CentOS Stream 10 Copr.

Further testing for Fedora in 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 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

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