Today, Apple released the fifth major update to its Mac OS X 10.5 Leopard operating system for Macintosh computers. 10.5.5 offers a wide array of fixes, as well as improvements to stability, reliability, security, and much more.

A note in the knowledge base article about 10.5.5 notes that the update "IMproves speech dictionary." This may be specifically useful to VoiceOver users, as well as to those who use the Mac’s built-in text-to-speech for other applications.

Frequently, accessibility improvements or fixes are found in these updates, though they may not have been documented in the release notes. If we find any such changes, we’ll report them here.

You can update your system through the "Software Update…" option in your system’s Apple menu, as usual. To read about the changes in this update, click here.