From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.devel Subject: Re: when do we remove backward compatibility definitions? Date: Tue, 21 Nov 2017 22:03:13 +0200 Message-ID: <834lpncsce.fsf@gnu.org> References: Reply-To: Eli Zaretskii NNTP-Posting-Host: blaine.gmane.org X-Trace: blaine.gmane.org 1511294636 26860 195.159.176.226 (21 Nov 2017 20:03:56 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Tue, 21 Nov 2017 20:03:56 +0000 (UTC) Cc: sds@gnu.org, emacs-devel@gnu.org To: Paul Eggert Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Tue Nov 21 21:03:49 2017 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1eHElj-0006Ep-Kr for ged-emacs-devel@m.gmane.org; Tue, 21 Nov 2017 21:03:43 +0100 Original-Received: from localhost ([::1]:36318 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eHElq-0005bU-SD for ged-emacs-devel@m.gmane.org; Tue, 21 Nov 2017 15:03:50 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:56061) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eHElg-0005aY-Dd for emacs-devel@gnu.org; Tue, 21 Nov 2017 15:03:41 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eHElf-0002zb-Jz for emacs-devel@gnu.org; Tue, 21 Nov 2017 15:03:40 -0500 Original-Received: from fencepost.gnu.org ([2001:4830:134:3::e]:45887) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eHEla-0002w6-1Y; Tue, 21 Nov 2017 15:03:34 -0500 Original-Received: from [176.228.60.248] (port=4121 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1eHElX-000753-BS; Tue, 21 Nov 2017 15:03:33 -0500 In-reply-to: (message from Paul Eggert on Tue, 21 Nov 2017 11:54:13 -0800) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 2001:4830:134:3::e X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.org gmane.emacs.devel:220336 Archived-At: > From: Paul Eggert > Date: Tue, 21 Nov 2017 11:54:13 -0800 > > > R releases? > > M major releases? > > Y years? > > > > Where is it officially documented? > > I don't think we have an official policy, so how about this as a first > cut: If the oldest GNU/Linux or other GNU distribution still in > reasonably widespread use has Emacs version N, then we don't need to > continue to support features that were marked obsolete in version N or > earlier. No, I don't think we should look at GNU/Linux distributions to determine such a policy. Emacs is a separate project, and shouldn't depend on any OS distributions. And I'm not even sure we should have a policy. For starters, who will implement it? Let's instead solve practical problems with such issues. Are there any practical problems here? If so, what are they? Thanks.