NAME
Acme::CPANModules::OneAndTwoDecimalDigitsVersionTrap - Chronicle CPAN distributions which have been trapped by the one- and two decimal digits versioning scheme
VERSION
This document describes version 0.002 of Acme::CPANModules::OneAndTwoDecimalDigitsVersionTrap (from Perl distribution Acme-CPANModules-OneAndTwoDecimalDigitsVersionTrap), released on 2020-01-03.
DESCRIPTION
Chronicle CPAN distributions which have been trapped by the one- and two decimal digits versioning scheme.
The x.y and x.yy versioning scheme used in Perl distribution has a trap: when you release a new version by incrementing the patchlevel part into x.y.z and x.yy.z, the new version number will be less than x.y and x.yy because x.y and x.yy will numify to x.y00 and x.yy0 respectivey; while x.y.z and x.yy.z will numify to x.00y.z and x.0yy, respectively.
So if you release Acme-MyDist-0.1 (numifies to 0.100000) then Acme-MyDist-0.1.1 (0.001001), or Acme-MyDist-0.01 (0.010000) then Acme-MyDist-0.01.1 (0.001001), PAUSE will refuse to index your new version because of "decreasing version number."
This does not happen when you release Acme-MyDist-0.001 (0.001000) and then Acme-MyDist-0.001.1 (0.001001).
This thing is peculiar to Perl, and is not intuitive. Consequently, sometimes CPAN authors are not familiar with this and thus have fallen into this trap.
This list chronicles distributions which have been trapped by this.
For a bit more details, see https://perlancar.wordpress.com/2018/09/10/should-i-choose-x-yy-or-x-yyy-versioning-scheme-for-my-perl-module/ and also version.
INCLUDED MODULES
Validate::Simple - From 0.01 to 0.01.1
Author's comment in ChangeLog: "Change version properly."
Bencher - From 0.46 to 0.46.1
Author's comment in ChangeLog: "This version number is broken because 0.46 > 0.46.1 because 0.46 normalizes to 0.460.000 while 0.46.1 is 0.046.100. This has happened a few times to me in other distributions too, so perhaps it's time to consider switching to a 3-digit minor version."
Author's blog post: https://perlancar.wordpress.com/2018/09/10/should-i-choose-x-yy-or-x-yyy-versioning-scheme-for-my-perl-module/ (2016-09-10).
Array::Compare - From 2.12 to 2.12.1
Author's comment in ChangeLog: "Fixing the idiocy in the previous version."
Author's blog post: https://perlhacks.com/2016/12/version-numbers/ (2016-12-13).
Acme::CPANLists - From 0.02 to 0.9.0
Author's comment in ChangeLog: "Update version number so it's higher than 0.02 (d'oh)."
FAQ
What are ways to use this module?
Aside from reading it, you can install all the listed modules using cpanmodules:
% cpanmodules ls-entries OneAndTwoDecimalDigitsVersionTrap | cpanm -nor Acme::CM::Get:
% perl -MAcme::CM::Get=OneAndTwoDecimalDigitsVersionTrap -E'say $_->{module} for @{ $LIST->{entries} }' | cpanm -nThis module also helps lcpan produce a more meaningful result for lcpan related-mods when it comes to finding related modules for the modules listed in this Acme::CPANModules module.
HOMEPAGE
Please visit the project's homepage at https://metacpan.org/release/Acme-CPANModules-OneAndTwoDecimalDigitsVersionTrap.
SOURCE
Source repository is at https://github.com/perlancar/perl-Acme-CPANModules-OneAndTwoDecimalDigitsVersionTrap.
BUGS
Please report any bugs or feature requests on the bugtracker website https://rt.cpan.org/Public/Dist/Display.html?Name=Acme-CPANModules-OneAndTwoDecimalDigitsVersionTrap
When submitting a bug or request, please include a test-file or a patch to an existing test-file that illustrates the bug or desired feature.
SEE ALSO
Acme::CPANModules - about the Acme::CPANModules namespace
cpanmodules - CLI tool to let you browse/view the lists
AUTHOR
perlancar <perlancar@cpan.org>
COPYRIGHT AND LICENSE
This software is copyright (c) 2020 by perlancar@cpan.org.
This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.