History question again. Does anybody know when .xsession-errors were started. The oldest I can find about from
/usr/share/doc/xserver-xorg/ is from 2005 which tells about the X11R7.0.0 release . Does anybody know what used to the state before that ?
In the old X Consortium upstream sources, it was added in 1991 to replace logging to a system-wide log file that users might not have access to:
but that had only been introduced a month before, and hadn't made it out into a release yet:
before that, it appears to be as @WumpusQ.Wumbley said in the comment above - it wasn't being captured by the Xsession and instead either lost or logged with the xdm stderr logs.