Version 3.5.6 (December 2025) - Code Quality & Harmonization
🛠️ NEW: Centralized feedback system (show_info/warning/error/success)
🐛 FIX: Fixed syntax errors in dockwidget module
⚡ PERF: PostgreSQL init optimization (5-50× faster layer loading)
🔧 IMPROVED: Connection caching for PostgreSQL layers
📊 QUALITY: Code quality score improved to 8.9/10
🧹 CLEANUP: Removed obsolete code and fixed bare except clauses

Version 2.3.5 (December 2025) - Configuration System v2.0
⚙️ Configuration v2.0 with integrated metadata structure
🔄 Automatic config migration (v1.0→v2.0) with backup/rollback
🔒 Forced backend respect - user choice strictly enforced
🚀 PostgreSQL 30% faster loading (fast counting + UNLOGGED MVs)

Version 2.3.4 (December 2025) - PostgreSQL & UX Improvements
🐛 CRITICAL FIX: PostgreSQL 2-part table references now work correctly
✨ FEATURE: Smart display field selection for exploring expressions
🐛 FIX: GeometryCollection buffer results now properly handled
🛠️ IMPROVED: Automatic ANALYZE on source tables for query
optimization

Version 2.3.0 (December 2025) - Global Undo/Redo System
⭐ FEATURE: Intelligent undo/redo with context detection
(source-only/global)
🏗️ REFACTOR: Task modules extracted (-99% appTasks.py, +400%
maintainability)
✅ QUALITY: PEP 8 95%, 26 tests, CI/CD active
🚀 PERFORMANCE: Geometry caching (5× speedup)

Version 2.2.5 (December 2025) - Geographic CRS Auto-Handling
FEATURE: Automatic EPSG:3857 conversion for geographic CRS
FIX: Geographic coordinates zoom & flash flickering

Version 2.2.4 (December 2025) - Bug Fix Release
BUG FIX: Fixed Spatialite field name quote handling
IMPROVED: Expression conversion reliability

Version 2.2.0 (December 2025) - Stability Improvements
STABILITY: Improved Qt JSON view crash prevention
FIXED: Tab widget error handling and recovery
IMPROVED: Theme synchronization and resource management
OPTIMIZED: Performance and memory usage

Version 2.1.0 (December 2025) - Production Release
STABLE: Production-ready multi-backend architecture
FIXED: Critical undo/redo functionality restored
FIXED: Field selection now includes all fields
FIXED: SQLite database lock errors with retry mechanism
FIXED: Subset string handling for OGR layers
IMPROVED: Advanced geometry repair with multiple strategies
IMPROVED: Enhanced UI theme support and consistency
IMPROVED: Predicate ordering optimization (2.5x faster)
IMPROVED: Comprehensive test coverage and documentation
Version 1.9.0 (December 2025) - Major Update
NEW: Works WITHOUT PostgreSQL! Plugin now supports any data source
NEW: Automatic backend selection (PostgreSQL/Spatialite/Local OGR)
IMPROVED: Better error messages with troubleshooting hints
FIXED: Plugin starts even if psycopg2 not installed
PERFORMANCE: Same speed as before with PostgreSQL, new Spatialite
backend for other formats
BREAKING: None (100% backward compatible with v1.8)

Version 1.8 (Previous)
- Rework filtering logic: use of temporary materialized views and
indexes
- Add spatialite management: project metadata and subset history
- Rebuild QgsCheckableComboBoxFeaturesListPickerWidget to show
filtered entities
- Rework combine logic filter