Microsoft's Mac Business Unit (MacBU) has released software updates for Office 2004 and Messenger 6.0.

Messenger 6.0.1 fixes an issue when signing in for the service, the company reveals. It's an update to the latest version of the application - which now supports Yahoo! chat 0, which the company released last month.

The update for Office 2004 contains a batch of security patches, including "fixes for vulnerabilities that an attacker can use to overwrite the contents of your computer's memory with malicious code," the company said. The update also includes all improvements released in previous updates.

Both updates are available from the company's Mac website.