Rename Europe/Kiev to Europe/Kyiv

[z0rc]

https://mm.icann.org/pipermail/tz-announce/2022-August/000071.html

tzdata renamed Europe/Kiev to Europe/Kyiv in 2022b release. Also link was added to preserve compatibility https://data.iana.org/time-zones/tzdb-2022b/backward.

What the process for this project to follow this change?

[z0rc]

To clarify my request. tzinfo supports TZInfo::Timezone.get('Europe/Kyiv') just fine, but all test cases use Europe/Kiev. Would it be sufficient to update test cases only?

[philr]

The only references to Europe/Kiev within tzinfo are in test fixture files. Those files were based on the 2020d release of the IANA Time Zone database. The Europe/Kiev time zone identifier is not used in the unit tests (or any code).

I've updated the test fixture files to 2023c in commit 9953fc0. That's reduced the number of references to Europe/Kiev in the test fixtures from 6 to 2 and increased the number of references to Europe/Kyiv from 0 to 6. The remaining Europe/Kiev references are because of the backwards compatible link that's still included in the IANA Time Zone database. Those will remain here until after Europe/Kiev is removed upstream (if that ever happens).