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yams/CHANGELOG.md

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Changelog

All notable changes to YAMS (Yet Another Memory System) will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

Archived Changelogs

  • v0.7.x archive: docs/changelogs/v0.7.md
  • v0.6.x archive: docs/changelogs/v0.6.md
  • v0.5.x archive: docs/changelogs/v0.5.md
  • v0.4.x archive: docs/changelogs/v0.4.md
  • v0.3.x archive: docs/changelogs/v0.3.md
  • v0.2.x archive: docs/changelogs/v0.2.md
  • v0.1.x archive: docs/changelogs/v0.1.md

[v0.7.9] - Unreleased

Added

  • Path Tree Repair: New yams repair --path-tree command to rebuild path tree index for documents added before the feature was implemented
    • Automatic background repair task runs after daemon reaches Ready state with no degraded subsystems
    • FSM-based scheduling waits for optimal system load before starting repair scan
    • Added metadata-only RepairManager constructor for path tree operations
  • Tag and Metadata Search: Search engine now supports tag-based and metadata attribute search as fusion components
    • New queryTags() component finds documents by tags with AND/OR matching
    • New queryMetadata() component matches documents by mimeType, extension, and modified time filters
    • Results are fused with other search components (FTS5, vector, path tree, etc.) using weighted scoring
    • Added SearchParams.tags, matchAllTags, mimeType, extension, modifiedAfter, modifiedBefore fields
    • Configurable weights: tagWeight (default 0.10) and metadataWeight (default 0.05)
  • Session Tree Integration: SessionService now uses path tree index for efficient document queries
    • New getTreeBranch() method returns tree node info with child segments for a path prefix
    • New getDocumentsFromTree() method queries documents using findDocumentsByPathTreePrefix()
    • warm() now uses tree-based queries instead of pattern matching for faster materialization

Removed

  • TUI/Browse Interface: Removed FTXUI-based terminal UI components in preparation for Flutter mobile application
    • Removed src/cli/tui/ directory and all TUI source files
    • Removed include/yams/cli/tui/ directory and TUI headers
    • Removed browse command (src/cli/commands/browse_command.cpp)
    • Removed FTXUI dependencies from build system
    • Updated command registry and CLI help to remove browse references

Fixed

  • Tree Command: Fixed "Metadata repository unavailable" error by ensuring storage initialization before accessing metadata
    • Path tree now properly populated during document ingestion via upsertPathTreeForDocument()
  • List Command: Fixed --name "*.md" glob patterns being incorrectly treated as file paths
    • Patterns starting with * or ? now correctly handled as glob patterns instead of literal filenames
  • Windows Support
  • Thread Safety: Fixed critical race conditions detected by ThreadSanitizer (TSan)
    • Fixed AsioConnection destructor race by properly canceling and closing sockets before destruction
    • Fixed RepairCoordinator access race by adding mutex protection around all accesses from TuningManager callbacks
    • Added mutex synchronization for RepairCoordinator lifecycle (creation, access, destruction)
    • Enabled ThreadSanitizer by default for Debug builds to catch race conditions early
  • Streaming Response Hang: Fixed coroutine race condition and idle timeout bypass causing streaming requests to hang
    • Streaming requests would timeout after connection went idle due to writer_drain not completing properly
    • Root cause 1: enqueue_frame coroutine suspension between flag check and flag set allowed multiple writers to start
    • Root cause 2: Connections with in-flight requests bypassed idle timeout, staying open indefinitely (105+ minutes observed)
    • Solution 1: Created synchronous enqueue_frame_sync() that sets writer_running_ flag atomically before suspension
    • Solution 2: Close idle connections even with in-flight requests - if client stopped reading, requests are stuck anyway
    • Added comprehensive test suite (writer_drain_test.cpp) with 5 integration tests validating the fix
    • Files: src/daemon/ipc/request_handler.cpp, include/yams/daemon/ipc/request_handler.h
  • Document Retrieval: Fixed "Document not found" error when multiple instances of a document exist
    • yams get --name now returns the most recently indexed document by default when multiple matches exist
    • Added --oldest flag support to retrieve the oldest indexed version instead
    • Updated resolveNameToHash to accept disambiguation strategy parameter
    • Non-blocking for LLM usage - always returns a result without requiring manual selection
  • Snapshot Creation: Fixed "File found in index but not in any snapshot" error
    • Simplified snapshot logic to always create snapshots on every ingestion
    • Removed conditional 24-hour check that prevented snapshot creation for existing documents
    • All documents now properly tracked in version history via yams list <filename>
  • Connection Pool Reliability: Simplified connection lifecycle management following daemon-managed best practices
    • Removed all client-side staleness prediction logic (is_stale(), age-based checks, peek logic)
    • Daemon now fully controls connection lifecycle via idle timeout (6 seconds)
    • Client pool simplified to only remove expired weak_ptrs, no health prediction
    • Read loop starts immediately on connection creation for proper request/response flow
    • Client reacts to natural I/O errors with automatic retry instead of trying to predict failures
    • Removed synchronization complexity (read_loop_ready flag and polling)

Changed

  • Build System: Removed enable-tui build option from meson_options.txt
  • Developer Experience: ThreadSanitizer now enabled by default in Debug builds via setup.sh