How to update:
0) get latest CLDR from http://cldr.unicode.org/index/downloads
1) update $Locales::CLDR_VERSION && $Locales::VERSION
2) build modules out of CLDR, something like this:
Note: If the DB mods are NOT changing you'll have to update "my $v_offset" in _locales_build_utils.pm && perl -pi -e 's{0\.25}{0.26}g;' t/042.*
./_build/cldr2locales ../Downloads/
../Downloads/ == path to downloaded and extracted CLDR core (should contain 'common/main' dir)
3) do any other changes
4) tidy it all (rt 69971)
perltidy -b `find lib/Locales/DB -name '*.pm'`
perltidy -b lib/Locales.pm
rm `find . -name '*.bak'`
5) perl Makefile.PL && make && make test
6) RELEASE_TESTING=1 make test
7) ... make dist && sudo make install