Cerulean Studios is preparing patches for Trillian to thwart moves by Microsoft and Yahoo to lock the popular instant messaging client out of their IM networks.
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Microsoft and Yahoo recently announced plans to update their IM services which are likely to lock out third-party IM clients.
Microsoft is planning its update on 15 October, while Yahoo's update will begin on 24 September.
Microsoft has said it is upgrading the MSN Messenger service because of a security issue, but added that it did not want third-party clients using its network without a form of compensation. Yahoo said it is upgrading to prevent spammers from hacking into its protocol and sending its users unsolicited messages.
But Trillian will not allow its users be disconnected by updates from the companies. Patches for Trillian versions 0.74 and 1.0 will be released shortly, said Cerulean Studios co-founder and head developer Scott Werndorfer.
"The patches will be out before the deadlines, and will include both Yahoo and Microsoft updates," he said, adding that Trillian Pro 2.0, released last week, has already been updated.
Trillian had about 940,000 users in the US in July, making it the most popular third-party IM client, according to market researcher ComScore Media Metrix.
Trillian and other clients such as Imici and Odigo allow users to consolidate multiple IM accounts in one client.
Joris Evers writes for IDG News Service