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= Perl 5.38 =
= Perl 5.40 =
 
{{Change_Proposal_Banner}}


== Summary ==
== Summary ==
A new ''perl 5.40'' version brings a lot of changes done over a year of development. Perl 5.40 should be released on May 20th 2024. See [https://metacpan.org/pod/release/RJBS/perl-5.38.0/pod/perldelta.pod perldelta for 5.40.0] for more details about new release.
A new ''perl 5.40'' version brings a lot of changes done over a year of development. Perl 5.40 should be released on May 20th 2024. See [https://metacpan.org/release/PEVANS/perl-5.39.9/view/pod/perldelta.pod perldelta for 5.39.9] for more details about new release.


== Owner ==
== Owner ==
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* FESCo shepherd: [[User:FASAccountName| Shehperd name]] <email address>
* FESCo shepherd: [[User:FASAccountName| Shehperd name]] <email address>
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== Current status ==
== Current status ==
[[Category:SystemWideChange]]
[[Category:SystemWideChange]]
[[Category:ChangePageIncomplete]]
[[Category:ChangeAnnounced]]
<!-- When your change proposal page is completed and ready for review and announcement -->
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<!-- The Wrangler announces the Change to the devel-announce list and changes the category to Category:ChangeAnnounced (no action required) -->
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* Targeted release: [https://docs.fedoraproject.org/en-US/releases/f41/ Fedora Linux 41]
* Targeted release: [https://docs.fedoraproject.org/en-US/releases/f41/ Fedora Linux 41]
* Last updated: <!-- this is an automatic macro — you don't need to change this line -->  {{REVISIONYEAR}}-{{REVISIONMONTH}}-{{REVISIONDAY2}}  
* Last updated: <!-- this is an automatic macro — you don't need to change this line -->  {{REVISIONYEAR}}-{{REVISIONMONTH}}-{{REVISIONDAY2}}  
<!-- After the change proposal is accepted by FESCo, tracking bug is created in Bugzilla and linked to this page
* [https://lists.fedoraproject.org/archives/list/devel-announce@lists.fedoraproject.org/thread/LNJW6EHUFKEHDUQFI3EA4O57B6CMFBF6/ Announced]
Bugzilla state meanings:
* [https://discussion.fedoraproject.org/t/f41-change-proposal-perl-5-40-system-wide/114739 Discussion thread]
ASSIGNED -> accepted by FESCo with ongoing development
MODIFIED -> change is substantially done and testable
ON_QA -> change is fully code complete
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* [<will be assigned by the Wrangler> devel thread]
* FESCo issue: <will be assigned by the Wrangler>
* FESCo issue: <will be assigned by the Wrangler>
* Tracker bug: <will be assigned by the Wrangler>
* Tracker bug: <will be assigned by the Wrangler>
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== Detailed Description ==
== Detailed Description ==
New perl is released every year and updates containing mainly bug fixes follow during the year. The 5.40.0 version is stable release this year.
New perl is released every year and updates containing mainly bug fixes follow during the year. The 5.40.0 version is stable release this year.
== Feedback ==
<!-- Summarize the feedback from the community and address why you chose not to accept proposed alternatives. This section is optional for all change proposals but is strongly suggested. Incorporating feedback here as it is raised gives FESCo a clearer view of your proposal and leaves a good record for the future. If you get no feedback, that is useful to note in this section as well. For innovative or possibly controversial ideas, consider collecting feedback before you file the change proposal. -->


== Benefit to Fedora ==
== Benefit to Fedora ==
Up-to-date and latest perl release will be delivered to Fedora users.
Up-to-date and latest perl release will be delivered to Fedora users.


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* Trademark approval: N/A (not needed for this Change)
* Trademark approval: N/A (not needed for this Change)


* Alignment with Community Initiatives:  
* Alignment with Community Initiatives:


== Upgrade/compatibility impact ==
== Upgrade/compatibility impact ==
Vast majority of functionality will be preserved. Only the packages that failed to build against perl 5.40 will be removed from the distribution. That will require to remove those packages from the existing systems otherwise a package manager will encounter unsatisfied dependencies. The developers in Perl language are advised to install ''perl-doc'' and ''perl-debugger'' packages.
Vast majority of functionality will be preserved. Only the packages that failed to build against perl 5.40 will be removed from the distribution. That will require to remove those packages from the existing systems otherwise a package manager will encounter unsatisfied dependencies. The developers in Perl language are advised to install ''perl-doc'' and ''perl-debugger'' packages.


== How To Test ==
== How To Test ==
 
Try upgrading from Fedora 40 to 41. Try some Perl application to verify they work as expected. Try embedded perl in [https://src.fedoraproject.org/rpms/openldap slapd] or [https://src.fedoraproject.org/rpms/net-snmp snmpd].
Try upgrading from Fedora 39 to 41. Try some Perl application to verify they work as expected. Try embedded perl in [https://src.fedoraproject.org/rpms/openldap slapd] or [https://src.fedoraproject.org/rpms/net-snmp snmpd].


== User Experience ==
== User Experience ==
There should not be any remarkable change in user experience. With the exception that previously locally installed modules with a CPAN clients will need a reinstallation.
There should not be any remarkable change in user experience. With the exception that previously locally installed modules with a CPAN clients will need a reinstallation.


== Dependencies ==
== Dependencies ==
There is more than 3500 packages depending on perl. It is the first rebuild where we will rebuild only all dual-lived packages and packages which require ''libperl.so'' or versioned ''perl(MODULE_COMPAT)''. It means only about 600 packages needs to rebuild. Most of them are expected not to break. Finishing this change can be endangered only by critical changes in a toolchain.
There is more than 3500 packages depending on perl. We will rebuild only all dual-lived packages and packages which require ''libperl.so'' or versioned ''perl(MODULE_COMPAT)''. It means only about 600 packages needs to rebuild. Most of them are expected not to break. Finishing this change can be endangered only by critical changes in a toolchain.
''noarch'' packages don't need to be rebuilt now.  
''noarch'' packages don't need to be rebuilt now.


== Contingency Plan ==
== Contingency Plan ==
* Contingency mechanism: If we find perl 5.40 is not suitable for Fedora 41, we will revert back to perl 5.38 and we drop the temporary build-root with already rebuilt packages.
* Contingency mechanism: If we find perl 5.40 is not suitable for Fedora 41, we will revert back to perl 5.38 and we drop the temporary build-root with already rebuilt packages.
* Contingency deadline: branching Fedora 41 from Rawhide.
* Contingency deadline: branching Fedora 41 from Rawhide.
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== Release Notes ==
== Release Notes ==
TBD, when release candidate appears.
TBD, when release candidate appears.

Latest revision as of 20:14, 28 April 2024

Perl 5.40

Important.png
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

A new perl 5.40 version brings a lot of changes done over a year of development. Perl 5.40 should be released on May 20th 2024. See perldelta for 5.39.9 for more details about new release.

Owner

Current status

  • Targeted release: Fedora Linux 41
  • Last updated: 2024-04-28
  • Announced
  • 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>

Completed Items

Items in Progress

Items to Be Done

  • Get dedicated build-root from rel-engs f41-perl
  • Upstream to release Perl 5.40
  • Define perl_bootstrap in perl-srpm-macros
  • Rebase perl to 5.40.0
  • Rebuild all dual-lived packages (83) - otherwise dnf recommends --skip-broken and fails
  • Rebuild packages needed for minimal build-root
  • Rebuild packages needed for building source packages from git repository
  • Rebuild packages requiring libperl.so or versioned perl(MODULE_COMPAT): Use Fedora::Rebuild dependency solver
  • Undefine perl_bootstrap
  • Rebuild packages having perl_bootstrap condition in spec file (51 packages)
  • Rebuild all updated packages
  • Final lists of results
  • Merge dedicated build-root to rawhide and remove the dedicated one by rel-engs
  • Synchronize packages upgraded in f41 build root
  • Rebuild Perl packages: 0 of 606 done (0.00 %)
  • Failed packages (0):

Detailed Description

New perl is released every year and updates containing mainly bug fixes follow during the year. The 5.40.0 version is stable release this year.

Benefit to Fedora

Up-to-date and latest perl release will be delivered to Fedora users.

Scope

Every Perl package will be rebuilt in a dedicated f41-perl build-root against perl 5.40.0 and then if no major problem emerges the packages will be merged back to f41 build-root.

  • Proposal owners: New perl and all packages requiring libperl.so or versioned perl(MODULE_COMPAT) will be rebuilt into f41-perl build-root.
  • Other developers: Owners of packages that fail to rebuild, mainly perl-sig users, will be asked using Bugzilla to fix or remove their packages from the distribution.

Release engineers will be asked for new f41-perl build-root inheriting from f41 build-root. After successful finishing the rebuild, they will be asked to merge f41-perl packages back to f41 build-root.

  • Policies and guidelines: N/A (not needed for this Change)
  • Trademark approval: N/A (not needed for this Change)
  • Alignment with Community Initiatives:

Upgrade/compatibility impact

Vast majority of functionality will be preserved. Only the packages that failed to build against perl 5.40 will be removed from the distribution. That will require to remove those packages from the existing systems otherwise a package manager will encounter unsatisfied dependencies. The developers in Perl language are advised to install perl-doc and perl-debugger packages.

How To Test

Try upgrading from Fedora 40 to 41. Try some Perl application to verify they work as expected. Try embedded perl in slapd or snmpd.

User Experience

There should not be any remarkable change in user experience. With the exception that previously locally installed modules with a CPAN clients will need a reinstallation.

Dependencies

There is more than 3500 packages depending on perl. We will rebuild only all dual-lived packages and packages which require libperl.so or versioned perl(MODULE_COMPAT). It means only about 600 packages needs to rebuild. Most of them are expected not to break. Finishing this change can be endangered only by critical changes in a toolchain. noarch packages don't need to be rebuilt now.

Contingency Plan

  • Contingency mechanism: If we find perl 5.40 is not suitable for Fedora 41, we will revert back to perl 5.38 and we drop the temporary build-root with already rebuilt packages.
  • Contingency deadline: branching Fedora 41 from Rawhide.
  • Blocks release? No.

Documentation

  • 5.40.0 perldelta
  • An announcement on perl-devel mailing list
  • An announcement on fedora-devel mailing list

Release Notes

TBD, when release candidate appears.

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