[tz] proposal for new tzdb versions

[Paul Eggert]

On 9/23/21 6:59 AM, Almaz Mingaleev wrote:
> For Android having 2021a1 and 2021b would be inconvenient. Because
> there are hardcoded places which expect that tzdata version is exactly
> 5 characters. And we can't update that code along with time zone files.

OK, but can you please fix this in Android? That is, please put in a bug 
report or whatever it takes to start the machinery to fix things.

You don't need to fix Android right this second, but please don't put it 
off until the year 9999 either, as the sorts of changes that we have 
been discussing post-2021b are very likely to generate version numbers 
longer than 5 characters in the not-as-distant-as-the-year-9999 future. 
Plus, the guidelines already say that release IDs can be more than 5 
characters.

Thanks.