Yahoo upgraded its Yahoo Messenger service in June by adding features designed to prevent IM spamming, and gave its users until September 24 to upgrade to this new version. The problem now appears to be that the new version of Yahoo Messenger doesn"t play well with the Trillian application, something that had been expected. Cerulean Studios didn"t immediately reply to an e-mail request for comments about this matter, but a message on its Web site acknowledges the problem and says the company is working hard to resolve it.
A Yahoo spokesperson declined to address the specific difficulties Trillian users may be facing, but acknowledged the upgrade could disrupt third-party software and services that aim to interoperate with Yahoo Messenger. "Our primary goal for the update is to prevent spammers from spamming our users. If this upgrade affects the way in which other services interact with Yahoo Messenger, it is a by-product of our efforts to protect users from spammers," said Mary Osako, Yahoo"s director of communications.