[erlang-questions] Code/Hot/Loading

Sam Bobroff <>
Mon Jan 23 22:21:40 CET 2012


2012/1/23 Björn Gustavsson <>

> On 1/23/12, Sam Bobroff <> wrote:
> > Sorry I'm a little late with my reply, but the situation is not as simple
> > as that (at least as of R14B02, I have not re-tested R15): funs can
> migrate
> > between versions of a module in some situations.
> >
> > Here's the thread where I asked a similar question:
> >
> > http://erlang.org/pipermail/erlang-questions/2011-May/058301.html
> >
> > Another older thread is referenced in that one and it's also interesting.
> >
>
> This problem has been fixed in R15B. Here is the release note
> from the README:
>
> OTP-9667  The calculation of the 'uniq' value for a fun (see
> erlang:fun_info/1) was too weak and has been strengthened. It
> used to be based on the only the code for the fun body, but
> it is now based on the MD5 of the BEAM code for the module.
>
> /Björn
>

Thank you! It's great to have that cleared up :-)

Sam.
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