- A Unix-like system or OS/2 with XFree
- At least X11 Release 5
- A decent LaTeX2e installation (e.g. teTeX or NTeX) not older
- than 1995/12/01
- Optionally ghostscript and ghostview (or compatible)
- Perl5.002 or later to import LaTeX files into LyX
+ Either of :
+ * a Unix-like system (including Windows with cygwin)
+ * Windows 98 or newer
+ * Mac OS 10.2 or newer
+
+ A decent LaTeX2e installation (e.g. teTeX for unix) not older
+ than 1995/12/01.
+ Python 2.3 or later to convert old LyX files and for helper scripts
+
+How does the LyX version scheme work?
+
+ LyX uses a continuous numbering scheme in which odd or
+ even numbering is not significant. Instead a number '1.x.y'
+ indicates stable release '1.x', fix level 'y'. Prereleases
+ are labeled with a "pre" suffix. Thus there are three possible
+ file names:
+
+ lyx-1.4.0.tar.gz -- stable release
+ lyx-1.4.5.tar.gz -- fifth maintenance release of the
+ 1.4 stable release
+ lyx-1.4.0pre1.tar.gz -- potentially unstable test release
+
+ The maintenance releases are designed primarily to fix bugs. The
+ goal here is not to have parallel development as for the linux
+ kernel (the team is too small to afford that), but rather to
+ include all the simple (so that the maintenance burden on us
+ is not too high) and safe (so that system administrators can
+ install them without fear) bug fixes. Experience shows that
+ these releases will contain a few new features, and that the
+ bulk of the patches will be documentation updates.
+
+ If you get the source from Subversion, the version string will
+ look like one of:
+
+ 1.4.1svn -- this is the stable branch on which maintenance
+ release 1.4.1 will eventually be tagged.
+ 1.5.0svn -- this is the main branch on which stable
+ release 1.5.0 will eventually be tagged.