Packages, GLPv3 and 21.4 (was: Tramp 2.2.)

What is the current view on upgrading or adding packages that might or might not work under 21.4. Some time has passed since 21.5 core got GPLv3 or later so it might be the time to address this again. The dilemma is: - (My understanding is) GPLv3 or later packages can't really be modified to work with 21.4 if that is the sole purpose of the change. - We would like to take advantage of using GPLv3 packages in the package tree to stay in sync etc, etc. (lots of reasons.) - We would like to use the ability to sync the 21.5 XEmacs core with parts of GNU Emacs to get GPLV3 or later features possibly needed by GPLv3 or later packages. My, probably naive, view is to branch the packages so that we can move forward with adding GPLv3 or later stuff, and still have a branch that 21.4 could use. My, probably very, very naive, view is to just at some time state that the packages with that release is not practical to use with 21.4 and that 21.4 users should not upgrade or they should move to 21.5. Views? Yours -- %% Mats _______________________________________________ XEmacs-Beta mailing list XEmacs-Beta(a)xemacs.org http://lists.xemacs.org/mailman/listinfo/xemacs-beta