[RFR] [8u262] JDK-8243541: (tz) Upgrade time-zone data to tzdata2020a

[Martin Buchholz]

On Wed, Jun 10, 2020 at 6:41 AM Andrew Hughes <gnu.andrew at redhat.com> wrote:
>
> On 10/06/2020 01:34, Martin Buchholz wrote:
> > Looks good.  At Google we also unsurprisingly used rearguard tzdata for jdk8.
> >
>
> Thanks for the quick review, Martin.
>
> What are your thoughts on moving 8u over to vanguard? The patch so far
> is looking relatively straight-forward (the difficulty is a bunch of
> refactoring in 11u, plus some superfluous changes in the changeset) and
> I don't fancy relying on rearguard being continually available, given 8u
> may be around for a while yet.

I am biased because I was opposed to the changes that are part of IANA
vanguard (along with many other people), and I've already invested
effort into staying on rearguard, and I'm more conservative about
adding new features to old releases.  But of course the world has to
migrate to vanguard.

I would choose to keep jdk8 (and jdk7, and jdk6 !) on rearguard
forever, and switch newer ones to vanguard.
If upstream IANA drops support for rearguard, it's probably easy
enough to do it ourselves.

>
> Thanks,
> --
> Andrew :)
>
> Senior Free Java Software Engineer
> Red Hat, Inc. (http://www.redhat.com)
>
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