On 2017-04-08, John White wrote: > I have found that the newer lyx versions open files created in an older > lyx version, but not visa versa.
This is true, because the older lyx version cannot reliably handle features added in a new lyx version. Exception: the last maintenance release of a major release can open files from the next major release. OTOH, you can export files to older LyX formats with File>Export... Advanced users can also just install a new lyx2lyx script for the old lyx. Günter
