Restored the ability to accept and decline offline friendship and group membership offers. As part of this work, the following capabilities have been significantly re-implemented:
Third-party viewer and open source developers should verify the functionality of friendship and group membership offers generally. And there are small documentation updates on the Wiki: https://wiki.secondlife.com/wiki/Current_Sim_Capabilities
Server-side generation of Calling Cards when a friendship offer is accepted has been removed. This feature moved to the viewer several years ago and now accepting friendship offers creates, at most, two Calling Cards, one for each party.
Quirks are also preserved. Offline offers can be acted upon only while in the region one logged into. Offers remain active for 24 hours from receipt or until the region restarts.