On 06/06/2016 06:10 PM, Andrew Parsloe wrote: > On 7/06/2016 9:50 a.m., Richard Heck wrote: >> On 06/06/2016 03:33 PM, Georg Baum wrote: >>> Jean-Marc Lasgouttes wrote: >>> >>>> Le 05/06/2016 à 21:05, Guillaume Munch a écrit : >>>>> Yet, most of the file format changes are very simple. I wonder >>>>> whether >>>>> one could introduce a single compilation variable to disable them, >>>>> and ask developers to enclose file-format-specific code between the >>>>> corresponding #ifdefs. (For instance in my last file format change >>>>> all >>>>> that was needed to be enclosed was the parsing code.) This would >>>>> allow >>>>> the release of "master versions without file format changes", >>>>> either as >>>>> nightlies or as official "x.5" versions as Pavel suggested by >>>>> Pavel in >>>>> another message (without having to maintain three branches in >>>>> parallel). >>>> This looks too complicated to me. And eventually there will be >>>> changes that cannot be treated like that, and all the previous work >>>> on small changes will be useless. >>>> >>>> Note that that stable nightlies could be updated with lyx2lyx code >>>> for new master versions in parallel with master. >>> Or we could add a mode that calls lyx2lyx automatically after >>> saving, so that effectively the master version would use the old >>> file format. This would probably work fine as long as no new >>> features are used. >> Yes, but do we want to warn people then not to use new features? I think >> it would just confuse people for us to tell them to test master but not >> to use some new features if they want to be able to go back to stable. >> >> Richard >> > As a potential user-tester I've followed this discussion with > interest. I can't imagine downloading and installing LyX daily, but I > can imagine doing this each month and using the resulting installation > as my working LyX (as I did for the alphas and betas of 2.2.0), > therefore with all features turned on and potential unreadability in > earlier versions.
And you can always export to 2.2.x format, in the usual way. rh
