Canon PIXMA iP4950 Driver Changelog
What's new in Canon PIXMA iP4950 Driver 11.7.1.0
May 20, 2015- OS X Yosemite (v10.10) has been added as a supported OS.
New in Canon PIXMA iP4950 Driver 10.84.2.0 (May 1, 2014)
- The following problem has been rectified: While installing the printer driver, you may be prompted to install Xcode.
New in Canon PIXMA iP4950 Driver 10.67.1.0 (Sep 3, 2012)
- OS X Mountain Lion (v10.8) has been added as a supported OS.