0.2.0

0.2.0 - 2026-10-11
Added
Tiered memory model: working, short_term, long_term tiers derived from the memory type; new types fact, procedure, observation, task (ADR-007).
Per-memory importance, tags, access_count, last_accessed, supersedes and promoted_from metadata. Records written by 0.1.x load unchanged with derived defaults.
Recall re-scoring by relevance + recency + importance with configurable weights; recency decays from last access; superseded memories are hidden.
Access-reinforced retention for short-term and working memories (MEMKERNEL_ACCESS_BOOST, MEMKERNEL_OBSERVATION_TTL_DAYS, MEMKERNEL_TASK_TTL_HOURS, MEMKERNEL_RECENCY_HALF_LIFE_DAYS).
MemoryService.promote, consolidate, forget_expired, list_memories.
MCP tools promote, consolidate, forget_expired, wiki_export, wiki_import; recall gains a tier filter; retain gains importance, tags, supersedes.
LLM-wiki bridge (memkernel.wiki): compile long-term memories into draft markdown pages and index curated pages as memories (ADR-008); MEMKERNEL_WIKI_DIR setting.
memkernel.factory.build_service() as the supported Python entry point; templates/hooks/session-start.py.
Design docs: architecture, literature review, sibling-project map, ADRs 007–009, licensing review, roadmap, harness integration plan.
Release workflow using PyPI trusted publishing.
Changed
License changed from MIT to Apache-2.0.
recall and get record an access (pass touch=False to avoid it).
/stats reports a per-tier breakdown.
Hook templates build the service through build_service() and surface promotion candidates after compaction.
CI frees runner disk before installing dependencies; actions moved to checkout@v5 / setup-python@v6.