For Gartner analyst Larry Cannell , the Inbox feature is the most interesting in this upgrade, because it offers users an alternative to the software's main activity stream.
"It's an interesting approach to enable people to deal with a high volume activity feed. The reliance on activity streams and the potential to overload it with messages is a concern expressed by many enterprises," Cannell said via email.
Yammer is also announcing several new partners that are integrating their products with Yammer's software, including Hootsuite, the social media dashboard application that lets people manage multiple accounts from a central interface.
Now, users will be able to view their Yammer notifications in Hootsuite, and also post and search for Yammer content from the Hootsuite interface.
Other new integration partners include MindFlash, Get Satisfaction and Mindjet. Yammer now has about 30 such partners.
"Yammer appears to be picking up the momentum for its partner application network, which customers will also appreciate. We expect 2013 to be the Year of The App Store for enterprise social networking providers," said Jim Lundy, an analyst at Aragon Research, via email.
Juan Carlos Perez covers enterprise communication/collaboration suites, operating systems, browsers and general technology breaking news for The IDG News Service. Follow Juan on Twitter at @JuanCPerezIDG.