On 2018-02-15, Wolfgang Engelmann wrote:

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> Is it true, that a lyx-file produced by lyx2.3.0beta1 is not taken by 
> lyx2.2.3?

Yes. However, you can use File>Export>LyX 2.2 to save a version that can be
opened by LyX 2.2.

> and, if so, which lyx2lyx shown in lyx-2.3.0beta1/*lib/lyx2lyx* should 
> be used for conversion:

> lyx_2_3.py

This is the Python module with the conversion functions for 2.2 <-> 2.3.

>             .pyc

.pyc files are pre-compiled "object code" files. You don't need them, they are
auto-generated if not present from the corresponding *.py file.


> lyx2lyx

lyx2lyx/lyx2lyx is the conversion script that should be called (e.g. with
--help). It loads the other modules in lib/lyx2lyx as required. (I placed
a symlink to usr/local/src/lyx23/lib/lyx2lyx/lyx2lyx in my PATH, so that
I can call it from everywhere.)

(You can even copy/link the complete lyx23/lib/lyx2lyx directory to your
2.2 user dir and then open 2.3 files with 2.2 directly.) 


Günter

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