Long-Term Memory Support for Agents in 26C

Summary:

26C is introducing long term memory for agents - is there more information on this?

Content (please ensure you mask any confidential information):

The 26C release notes announce long term memory support for agents, but the notes are very brief.

Long-Term Memory Support for Agents

This feels like a major change that might even change behaviour of existing agents. Is there more info on how this will work?

1. Does this automatically apply to all agents?
2. Does each agent have its own long-term memory, or is a single long-term memory shared across all agents used by that user?
3. As there may be confidential or employee specific data provided by users to agents, how does the long-term memory avoid capturing any record specific data?