Re: Bump minimum Java version to 17 on main (10.0)

[Adrien Grand <jp...@gmail.com>]

I opened https://issues.apache.org/jira/browse/LUCENE-10283.

On Fri, Nov 5, 2021 at 3:46 AM Robert Muir <rc...@gmail.com> wrote:
>
> On Thu, Nov 4, 2021 at 10:42 AM Dawid Weiss <da...@gmail.com> wrote:
> >
> > > we don't have to "support" users on our main trunk branch. That's why
> > > we make releases.
> >
> > Nah. I don't agree with this one - you have to be aware about who is
> > using your project (especially a library) and in what context. Maybe
> > we differ in our opinion here. Your previous argument is much more
> > convincing (thank you for laying it out so clearly).
> >
>
> Let's try again. First of all, I feel Uwe's reply says it perfectly,
> so it is difficult to elaborate more.
>
> But there should be a place to add "latest-and-greatest" changes, that
> take advantage of whatever new slim pickings java will give us. This
> allows the project to move forward: both in terms of new
> opportunities, but also basic janitorial work: so you don't have a ton
> of slow suboptimal code that doesn't "keep with the times".
>
> This is what a 'main' branch is all about: it is the latest and
> greatest. We have stable branches such as 'branch_9x' which stay
> stable on their old java 11, and maybe we spin 10 releases for them
> for 2.5 years just like we did for 8.x Plenty of bugfixes/improvements
> can be backported to 'branch_9x', maybe they require some small
> modifications because 'branch_9x' is on java 11. When this gets to be
> painful it is a sign that lucene 10 is overdue, and we branch again :)
>
> So it really shouldn't be controversial for the main branch to have
> the latest dependencies and so on. But yet we suffer through this
> battle *EVERY SINGLE MAJOR LUCENE RELEASE*. Like pulling teeth to bump
> the jdk version so that we can improve its features. Doesn't make any
> sense as the change won't have user impact for 2.5 years. In this
> case, in 2.5 years (2023), JDK11 will actually be EOL already. No
> sense in holding back 10.x like that.
>
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-- 
Adrien

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