Re: tzdata 2025b

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Masahiko Sawada <sawada(dot)mshk(at)gmail(dot)com>
Cc: PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: tzdata 2025b
Date: 2025-03-31 22:46:37
Message-ID: 243582.1743461197@sss.pgh.pa.us
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Masahiko Sawada <sawada(dot)mshk(at)gmail(dot)com> writes:
> tzdata 2025b has been released on 3/22[1]. Do we need to update the
> tzdata.zi file on HEAD and backbranches?

Yup, eventually, but I don't normally worry about it until we are
approaching a release date. tzdata changes often come in bunches
around the spring and fall equinoxes, which is when governments
tend to rush out DST changes without thinking about lead times :-(.
So it's entirely possible that 2025b will already be obsolete by May.
(See for example ecbac3e6e and d8fc45bd0, when I thought I'd waited
long enough and was wrong.)

The situation might be different with a tzdata release that affects
our regression test results, but I don't believe this one does.

regards, tom lane

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