[icu-support] Is icu4c/source/data/zone/tzdbNames.txt obsolete?

['Victor C. v. icu-s. <icu...@un...>]

Hi,

We followed this ICU documentation to update the time zone data in the ICU.
https://unicode-org.github.io/icu/userguide/datetime/timezone/#updating-the-time-zone-data

Essentially, the following 4 files need to be updated.

   - zoneinfo64.res
   - windowsZones.res
   - timezoneTypes.res
   - metaZones.res

However, we found this *tzdbNames.res* in the binary ICU packaged data. Is
it used by ICU? The source of tzdbNames can be found here.
https://github.com/unicode-org/icu/blob/maint/maint-76/icu4c/source/data/zone/tzdbNames.txt

The last update was 7 years ago. I guess that this file is obsolete? Or
will the file get updated in the future ICU release?

-- 

Victor Chang

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