# \[psychtoolbox\] Psychtoolbox 2.42 for Mac available

**URL:** <https://psychtoolbox.discourse.group/t/psychtoolbox-psychtoolbox-2-42-for-mac-available/1897>\
**Category:** Uncategorized\
**Created:** [March 7, 2000, 7:23pm UTC](https://psychtoolbox.discourse.group/t/psychtoolbox-psychtoolbox-2-42-for-mac-available/1897 "2000-03-07T19:23:36Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![Allen\_Ingling](https://avatars.discourse-cdn.com/v4/letter/a/a183cd/32.png) [@Allen\_Ingling](https://psychtoolbox.discourse.group/u/Allen_Ingling)\
**Post date:** [March 7, 2000, 7:23pm UTC](https://psychtoolbox.discourse.group/t/psychtoolbox-psychtoolbox-2-42-for-mac-available/1897/1 "2000-03-07T19:23:36Z")

</div>

Dear Psychophysics Toolbox User:  
  
We have posted version 2.42 of the Psychophysics Toolbox for the  
Mac. The current Windows release remains 2.41 and is an alpha version.  
  
The enhancements form 2.41 to 2.42 eliminate several minor bugs and  
spurious warnings. We recommend that you upgrade. For details see changes:  
\<[http://color.psych.ucsb.edu/psychtoolbox/mac.html#highlights](http://color.psych.ucsb.edu/psychtoolbox/mac.html#highlights)\>.  
To download, go to: \<[http://color.psych.ucsb.edu/psychtoolbox/download](http://color.psych.ucsb.edu/psychtoolbox/download)\>.  
  
Do you have a stimulus that you could send us as an image file (or  
quicktime movie) to decorate the psychtoolbox web site? (Tell  
us what info you'd like in the caption.) See  
\<[http://color.psych.ucsb.edu/psychtoolbox/intro.html](http://color.psych.ucsb.edu/psychtoolbox/intro.html)\>  
for examples provided by some of your colleagues. If you'd like  
to contribute something, send it to Denis Pelli ([denis@...](mailto:denis@...)).  
  
Best,  
  
David and Denis