I have uploaded a new version of the Windows installer to http://ftp.lyx.org/pub/lyx/devel/lyx-2.3/
This SHOULD (and does seem to) use a versioned user directory but NOT have versioned executables. Please test. Stefan: I am pretty sure this will be the final version, but I don't want to tag it until I'm sure. Still, if you want to go ahead and build a new package, then you can check out rgheck/2.3.1-1, which is what I will push as a new tag once I am sure. (It'll be exactly the same code, but of course in the main repo.) The only change that will affect you is the one to configure.ac. The others are Windows only. Riki