X Window System
Version 11 Release 7.7

X11R7.7 is an Open Source version of the X Window System that supports Linux, BSD, Solaris, Cygwin and MacOS X on Intel and other platforms.

The X11R7.7 release has been produced by the many contributors to the X.Org community and members of the X.Org Foundation and includes code from the X Consortium, the Open Group and the XFree86® Project.

This release is part of our celebration of 25 years of X11, recognizing the 25th anniversary of the X Window System Version 11, Release 1 on September 15, 1987.