The newest Apple Operating System, OS X 10.7 (Lion), was released on July 20. Before you upgrade to 10.7, take note that Lion does not include Rosetta, Apple’s compatibility environment for running PowerPC applications. This means that some applications and software packages commonly used at Queen’s will not work in OS X 10.7. In particular, this impacts:
- Oracle Calendar client for Macintosh
- Office 2008 (and older)
- Adobe CS4 (and older)

As well, Lion does not recognize Entrust Certificates in Safari. Users may therefore receive a warning when they try to access some services. Visit the Verify Certificate tutorial to learn how to accept the Certificate and bypass the warning: http://www.queensu.ca/its/software/issues/certificate.html.

For further details, including workarounds, visit the Known Software Issues page on the ITServices website: http://www.queensu.ca/its/software/issues.html. You may wish to bookmark this page in your browser and refer to it regularly as it will be updated whenever issues relating to the software and applications commonly used at Queen’s are discovered.