[erlang-questions] R14B03 compiled code vs R15B compiled code

Jachym Holecek <>
Sun Jan 22 15:15:46 CET 2012


# Tim Watson 2012-01-22:
> On 20 January 2012 22:52, Jachym Holecek <> wrote:
> 
> > # Wes James 2012-01-20:
> > > I've been pushing some R15B compiled code to some workstations that
> > > have R14B03 on them, but they crash when run.  If I take my code and
> > > compile it on the R14B03 system and run it, it does not crash.  What
> > > is the compatibility between versions?
> >
> > IIRC the contract is that code compiled with R${n} shall work fine
> > with R${N+1} and R${N+2} -- nothing more, especially not in the
> > opposite direction.
>
> Is the *official line* wrt compatibility between OTP releases documented
> somewhere? We produce binary artefacts that get stashed in a repository and
> used as dependencies for build/deployment and I'd like to understand what
> we should be doing about different erts versions on the target environment.

See http://erlang.org/pipermail/erlang-questions/2011-June/059464.html

BR,
	-- Jachym



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