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From: Glenn Morris <rgm@gnu.org>
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Subject: Re: split window
Date: Thu, 28 May 2015 16:41:23 -0400
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To: Richard Wordingham <richard.wordingham@ntlworld.com>
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Richard Wordingham wrote:

> Emacs 23.3.1 is the latest for Ubuntu 12.04 Precise Pangolin, which is
> in long-term support until 2017.

Note that YMMV for "long-term support".
Eg if I read https://launchpad.net/ubuntu/+source/emacs23 correctly,
Ubuntu aren't even updating Emacs 23 for known security issues with CVEs,
eg https://bugs.debian.org/747100.

I don't think those issues are actually at all important, but it makes
the point that the Emacs component of that release isn't being supported
by Ubuntu (AFAICS), and it sure isn't supported by any Emacs developers
any more.

I'm not blaming anyone, that's the usual nature of long-term releases IME.
Some form of "core" gets updates, the other stuff just comes along for
the ride.

By all means keep using Emacs 23.3 if you prefer it, but no-one's
supporting it.