couple of new "hacks". The following is straight from the README file.
Changes since 3.33: * Turned `memoryLimit' off by default, sigh. Apparently
some versions of the GL libraries (appear to) allocate
hundreds of megs for every GL program, so `memoryLimit'
was causing GL programs to malfunction or crash on
those systems.
* Improved fading on TrueColor XFree86 4.1.x systems.
* New GL hack, `circuit'.
* Added `fuzz' mode to `decayscreen'.
* New version of `whirlygig'.
* Added links to `glplanet' and `sphereEversion'.
* Fixed rare race condition that could make `sonar' hang.
* Fixed potential crash in `speedmine'.
* Made `xscreensaver-demo' not crash when imageDirectory
was set to a non-existent directory.
* Made `xscreensaver-getimage-video' invoke XawTV's
`streamer' program better.
* Made `phosphor' and `starwars' deal with CR, LF,
or CRLF line endings.
* Changes for Cygwin compilation environments.
* Made `sonar' compile on systems that can't ping.
* Configure changes for HPUX 10.20.
* Made PAM code work on Red Had 4.2 systems.
* Made `xscreensaver-command -deactivate' work when the
saver is not active: what that does is reset the idle
timer, as if keyboard input had been detected. This
was added for the benefit of people writing DVD-playing
software: they can now prevent the screensaver from
kicking in by sending a -deactivate message once a
minute while the movie is playing and not paused.
* Various minor portability tweaks.