Graham, et al. Just a followup: I kind of assumed that everyone knew where the upgrade instructions are. If not, the instructions for 2.12 are here:
http://docs.evergreen-ils.org/2.12/_upgrading_the_evergreen_server.html You can also find the latest instructions for upgrade in the docs/installation directory of an extracted tarball or git checkout. It's formatted in asciidoc, so you can make it more readable by running asciidoc on it and outputting HTML, a PDF, DocBook, or other formats. There are no upgrade instructions to 3.0, yet, because it has not been released. There are steps you can do if you want to test the master branch. If you plan to go that route, then I recommend sticking with the master branch and not trying to switch to releases later. Upgrading OpenSRF is very easy. You just install the new version. It should overwrite the old one if you use the same options. Cheers, Jason