Is branch 6.3 still maintained?

[denis.be...@gmail.com]

I see a release r955 on source forge, with a fix  "for return value constraint crash".

The release is only for branches 6.4 and 7.0. 

Similarly, previously, I noticed that  the introduction of function "with-open-file" was not done in branch 6.3.

Is branch 6.3 still maintained ?

[CLIPS Support]

The short answer is no. I don't recall if I've made any exceptions to this rule, but new features are only added to the current major.minor version of the software (in this case, 6.4). I frequently backport bug fixes to the prior version of CLIPS, but I don't necessarily do that at the same time I fix it in the current version.