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Revision as of 06:32, 19 June 2023 by Jplesnik (talk | contribs) (→‎Items to Be Done: Add link to f39-perl)

Perl 5.38

Summary

A new perl 5.38 version brings a lot of changes done over a year of development. Perl 5.38 will be delayed and probably released at the end of June 2023. See perldelta for 5.38.0-RC1 for more details about new release.

Owner

Current status

Completed Items

Items in Progress

Items to Be Done

  • Get dedicated build-root from rel-engs (f39-perl)
  • Upstream to release Perl 5.38
  • Define perl_bootstrap in perl-srpm-macros
  • Rebase perl to 5.38.0
  • 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 (XX 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 f39 build root
  • Rebuild Perl packages: 0 of 600 done (0 %)
  • Failed packages (0):
  • Rebuild Fedora modules: 0 of 0 (0 %)
  • Create module perl:5.38 and rebuild dependencies

Detailed Description

New perl is released every year and updates containing mainly bug fixes follow during the year. The 5.38.0 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 f39-perl build-root against perl 5.38.0 and then if no major problem emerges the packages will be merged back to f39 build-root.

  • Proposal owners: New perl and all packages requiring libperl.so or versioned perl(MODULE_COMPAT) will be rebuilt into f39-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 f39-perl build-root inheriting from f39 build-root. After successful finishing the rebuild, they will be asked to merge f39-perl packages back to f39 build-root.

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

Upgrade/compatibility impact

Vast majority of functionality will be preserved. Only the packages that failed to build against perl 5.38 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 38 to 39. 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. 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. noarch packages don't need to be rebuilt now.

Contingency Plan

  • Contingency mechanism: If we find perl 5.38 is not suitable for Fedora 39, we will revert back to perl 5.36 and we drop the temporary build-root with already rebuilt packages.
  • Contingency deadline: branching Fedora 39 from Rawhide.
  • Blocks release? No.

Documentation

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

Release Notes

TBD

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