+ <STRONG>o</STRONG> In April 2011, a Red Hat developer submitted a patch to the Linux
+ kernel, modifying its console driver to do the same thing.
+ Documentation of this change, appearing in Linux 3.0, did not
+ mention <EM>xterm</EM>, although that program was cited in the Red Hat bug
+ report (#683733) motivating the feature.
+
+ <STRONG>o</STRONG> Subsequently, more terminal developers adopted the feature. The
+ next relevant step was to change the <EM>ncurses</EM> <STRONG>clear</STRONG> program in 2013
+ to incorporate this extension.
+
+ <STRONG>o</STRONG> In 2013, the <STRONG>E3</STRONG> capability was not exercised by "<STRONG>tput</STRONG> <STRONG>clear</STRONG>". That
+ oversight was addressed in 2016 by reorganizing <STRONG>tput</STRONG> to share its
+ logic with <STRONG>clear</STRONG> and <STRONG>tset</STRONG>.