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Re: [OFFTOPIC] Semver

From: Yuri Khan
Subject: Re: [OFFTOPIC] Semver
Date: Tue, 6 Jul 2021 18:49:36 +0700

On Tue, 6 Jul 2021 at 16:57, Emanuel Berg via Users list for the GNU
Emacs text editor <> wrote:

> OK, but if minor should be "forward not OK, backward OK" that
> means it can't be update when drop stuff, only when you add
> stuff, the the supposedly major number will keep track of
> that... Wow, I'm soo excited to get the new version 2.0.0,
> I wonder what stuff they have dropped??

Yeah exactly. When you see a new major version in a semantically
versioned program/library, the emotion you feel is not excitement but
anxiety: what did they break this time? Is it something I was attached

Of course, from the maintainer’s side, the situation is reversed:
“Woo! 57.0, we can finally drop that legacy API we’ve had to support
for the last several years, and that has been holding us back from
refactoring a whole subsystem because that would break every user of
that API!”

> > When we say “version 4.5.3 is forward-compatible with
> > 4.5.1”, we mean “Any software that works with 4.5.3 will
> > also work with 4.5.1”.
> OK, but on that level by definition everything is compatible
> with everything, right?

You mean, on the level of only patch number change? Should be, yes.
That’s why feature additions increment the minor version component.

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