Question
Is a default Sametime installation affected by the following WebSphere plugin expirations occurring on April 26:
Password to the plugin-key.kdb file expires on April 26, 2012 US EDT (#1588312)
The password to the plugin-key.kdb file that is shipped with WebSphere Application Server expires on April 26, 2012 US EDT. A majority of users do not reference the affected file at runtime and therefore are not impacted. However, a small minority of users must take action and use certificate management tools to remove the password expiration prior to April 26, 2012 to avoid experiencing this failure.
Plugin Personal Certificate will expire on April 26, 2012 (#1577327)
The personal certificate called “WebSphere Plugin Key” within the plugin-key.kdb that is shipped with the WebSphere Plugin install will expire on April 26, 2012.
Answer
No, the default out-of-the-box Sametime 8.5 environment is not affected by these expirations. Sametime 8.5 servers do not use the WebSphere plugin.
via IBM Is Sametime affected by the WebSphere plugin expiration of 26 April 2012? – United States.