From: Eric Hodel Date: 2007-03-28T05:15:52+09:00 Subject: Re: Are sub-versions now binary-compatible? On Mar 23, 2007, at 10:50, Eric Promislow wrote: > I found I had to build separate versions of a binary library to run on > 1.8.2 and 1.8.4 Which library? > Do versions 1.8.4 and 1.8.5 also have binary incompatibilities? Is > there a test suite around i could use? Depends on the library. Some can be used cross version, others can't. ParseTree refuses to work on a library other than the one it was built on. I've had no luck running ImageMagick on multiple ruby versions either.