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Release notes

Pi 0.12.7

Added

  • Context Compaction: Long sessions can now be compacted to reduce context usage while preserving recent conversation history. (#92, docs)
    • /compact [instructions]: Manually compact context with optional custom instructions for the summary
    • /autocompact: Toggle automatic compaction when context exceeds threshold
    • Compaction summarizes older messages while keeping recent messages (default 20k tokens) verbatim
    • Auto-compaction triggers when context reaches contextWindow - reserveTokens (default 16k reserve)
    • Compacted sessions show a collapsible summary in the TUI (toggle with o key)
    • HTML exports include compaction summaries as collapsible sections
    • RPC mode supports {"type":"compact"} command and auto-compaction (emits compaction events)
  • Branch Source Tracking: Branched sessions now store branchedFrom in the session header, containing the path to the original session file. Useful for tracing session lineage.