[erlang-questions] version or vsn?

Steve Davis <>
Sat Jan 31 20:51:33 CET 2009

I've noticed that if you use -version() in your source then -vsn() is 
still recorded in Module:module_info(attributes) -- apparently as a 128 
uuid. However, If you do use -vsn(), that uuid isn't generated... so is 
it better practice to use -version() in your source so that you have 
that auto-generated serial UID to uniquely identify the beam from the 
-vsn() attribute?


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