Yes, it's possible, and I understand why you want to do it (why throw out a version that works fine, if you're not sure about possible bugs in the new version?) So you could do the following:
1) assuming you have LyX version 1.6.x installed the usual way, rename /Appplications/LyX.app to something else, e.g. LyX-1-6.app. 2) Just for safety, I would make a backup copy of the LyX-1.6 folder in ~/Library/Application Support/ (ideally, this shouldn't be necessary, because a new LyX-2.0 folder is created) 3) Download and install LyX version 2 Now whenever you want to open a file with the older LyX, drag it onto the icon for LyX-1-6 instead of the LyX application. One potential headache is to make sure LyX 2 is the default for opening LyX documents. You do that by highlighting any LyX file and going to the "Get Info" menu, then checking the "open with..." entry. It can sometimes be hard to make that setting stick for all files, especially if you go back and forth between old and new versions. So during this transition period, it's probably good to check the "About LyX" menu once in a while to verify you're using the version you intended. Be aware that files saved normally from LyX 2 won't be readable by LyX 1.6, so after some time you'll probably be happier working with the new version. Jens On May 8, 2011, at 5:58 AM, Pierfranco Minsenti wrote: > Hello, > > I would like to know if it is possible and how to install Lyx 2.0 on a MAC OS > X (10.6 Snow Leopard) as a a separate installation so that it doesn't > interfere with the 1.6 installation. > Thank you for your cooperation > pierfranco > > > 2011/5/8 Ken <kmai...@gmail.com> > Hi. Is it possible to have both LyX 1.6 and Lyx 2.0 installed at the > same time? Are there any consequences to having both installed? > > I would like to try LyX 2.0 but don't want to break anything on my > current work and want to go back to 1.6 easily if necessary. > > Thanks >
