The memory selection system now caches its state per-directory across queries within a session, reusing the conversation context for follow-up memory relevance queries instead of rebuilding it each time. The memory selection prompt has also been revised to support multi-turn usage ("Do not re-select memories you already returned for an earlier query").
Evidence
Memory selector state management (search for "memdir_relevance")
Strings lifted out of the shipped bundle, so the claim above can be checked against them.