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chore(release): v1.7.2 - Critical Bugfixes & Performance Improvements

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CRITICAL BUGFIXES:
- IMPL_014: JSON/Markdown Timestamp Sync - Server mtime source of truth
- IMPL_015: SyncStatus PENDING Fix - Set before JSON serialization
- IMPL_001: Deletion Tracker Race Condition - Mutex-based sync
- IMPL_002: ISO8601 Timezone Parsing - Multi-format support
- IMPL_003: Memory Leak Prevention - SafeSardine Closeable
- IMPL_004: E-Tag Batch Caching - ~50-100ms performance gain

FEATURES:
- Auto-updating timestamps in UI (every 30s)
- Performance optimizations for Staggered Grid scrolling

BUILD:
- versionCode: 19
- versionName: 1.7.2

This release prepares for a new cross-platform Markdown editor
(Web, Desktop Windows + Linux, Mobile) with proper JSON ↔ Markdown synchronization
and resolves critical sync issues for external editor integration.
This commit is contained in:
inventory69
2026-02-04 16:05:33 +01:00
parent 45f528ea0e
commit e9e4b87853
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CHANGELOG.md
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@@ -8,6 +8,77 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
---
## [1.7.2] - 2026-02-04
### 🐛 Critical Bug Fixes
#### JSON/Markdown Timestamp Sync
**Problem:** External editors (Obsidian, Typora, VS Code, custom editors) update Markdown content but don't update YAML `updated:` timestamp, causing the Android app to skip changes.
**Solution:**
- Server file modification time (`mtime`) is now used as source of truth instead of YAML timestamp
- Content changes detected via hash comparison
- Notes marked as `PENDING` after Markdown import → JSON automatically re-uploaded on next sync
- Fixes sorting issues after external edits
#### SyncStatus on Server Always PENDING
**Problem:** All JSON files on server contained `"syncStatus": "PENDING"` even after successful sync, confusing external clients.
**Solution:**
- Status is now set to `SYNCED` **before** JSON serialization
- Server and local copies are now consistent
- External web/Tauri editors can correctly interpret sync state
#### Deletion Tracker Race Condition
**Problem:** Batch deletes could lose deletion records due to concurrent file access.
**Solution:**
- Mutex-based synchronization for deletion tracking
- New `trackDeletionSafe()` function prevents race conditions
- Guarantees zombie note prevention even with rapid deletes
#### ISO8601 Timezone Parsing
**Problem:** Markdown imports failed with timezone offsets like `+01:00` or `-05:00`.
**Solution:**
- Multi-format ISO8601 parser with fallback chain
- Supports UTC (Z), timezone offsets (+01:00, +0100), and milliseconds
- Compatible with Obsidian, Typora, VS Code timestamps
### ⚡ Performance Improvements
#### E-Tag Batch Caching
- E-Tags are now written in single batch operation instead of N individual writes
- Performance gain: ~50-100ms per sync with multiple notes
- Reduced disk I/O operations
#### Memory Leak Prevention
- `SafeSardineWrapper` now implements `Closeable` for explicit resource cleanup
- HTTP connection pool is properly evicted after sync
- Prevents socket exhaustion during frequent syncs
### 🔧 Technical Details
- **IMPL_001:** `kotlinx.coroutines.sync.Mutex` for thread-safe deletion tracking
- **IMPL_002:** Pattern-based ISO8601 parser with 8 format variants
- **IMPL_003:** Connection pool eviction + dispatcher shutdown in `close()`
- **IMPL_004:** Batch `SharedPreferences.Editor` updates
- **IMPL_014:** Server `mtime` parameter in `Note.fromMarkdown()`
- **IMPL_015:** `syncStatus` set before `toJson()` call
### 📚 Documentation
- External Editor Specification for web/Tauri editor developers
- Detailed implementation documentation for all bugfixes
---
## [1.7.1] - 2026-02-02
### 🐛 Critical Bug Fixes
@@ -568,8 +639,8 @@ The complete UI has been migrated from XML Views to Jetpack Compose. The app is
### Documentation
- Added WebDAV mount instructions (Windows, macOS, Linux)
- Created [SYNC_ARCHITECTURE.md](../project-docs/simple-notes-sync/architecture/SYNC_ARCHITECTURE.md) - Complete sync documentation
- Created [MARKDOWN_DESKTOP_REALITY_CHECK.md](../project-docs/simple-notes-sync/markdown-desktop-plan/MARKDOWN_DESKTOP_REALITY_CHECK.md) - Desktop integration analysis
- Complete sync architecture documentation
- Desktop integration analysis
---