Can't open 2.4.0-beta5 doc in 2.4.0-beta3

[José Matos]

On Tue, 2023-09-05 at 15:45 -0500, Christopher Menzel wrote:
> LyX folk,
> 
> I recently compiled Lyx 2.4.0-beta5 under Linux and find that I am
> unable to open the file in Lyx 2.4.0-beta3 under MacOS and the
> conversion script is failing to export to 2.3.x. By changing
> "\lyxformat 618” to "\lyxformat 616” I was able to load the document
> in 2.4.0-beta3 although I got two "Document header” errors: "Unknown
> token: \use_formatted_ref \use_formatted_ref” and "Unknown token: 0
> 0”. After saving the file, it opened without any errors in beta3 and
> the contents appear to be OK. But I’d prefer a more elegant solution
> if one exists.
> 
> Thanks.
> 
> Chris Menzel

As Riki said.

Another alternative is to copy/replace the lyx2lyx folder from beta5 to
the beta3 installation. Then it will work flawlessly and the same with
the conversion to lyx 2.3 format. Actually only the lyx_2_4.py file
should be different...

Regards,
-- 
José Abílio