v1.3.0-rc.1 - Stability & Core LSP

Pre-release candidate for v1.3.0. Not for production use.

Changes since v1.2.5

Added

• Rich hover tooltips for standard function blocks: parameter tables, behavior descriptions, usage examples (#22)
• Advanced diagnostics and linting: missing semicolons, duplicate declarations, undefined variables, unused variables, type mismatches (#6)
• Quick fixes for semantic diagnostics: insert semicolon, remove duplicate declaration, remove unused variable (#6)
• Levenshtein-based fuzzy matching for "did you mean?" suggestions on undefined identifiers (#6)
• Code formatting (Shift+Alt+F): keyword casing, indentation, operator spacing, VAR block alignment, trailing whitespace removal (#29)
• Format Selection support for partial document formatting (#29)
• Configurable formatting settings: keywordCase, insertSpacesAroundOperators, alignVarDeclarations, trimTrailingWhitespace, insertFinalNewline (#29)
• Rename Symbol (F2): rename variables, functions, FBs, programs with IEC 61131-3 validation, comment awareness (#28)
• Code actions and quick fixes: auto-insert missing END blocks, close unclosed strings, fix unmatched parentheses (#26)
• Real-time diagnostics with Problems panel integration: unmatched blocks, unclosed strings, unmatched parentheses (#27)
• AST parser rewrite with multi-line statement accumulator architecture (#41)
• 366 unit tests (up from 44 in v1.2.5)

Fixed

• Parser regex fails on multi-line variable declarations (#41)
• Verbose console.log in definition provider polluting output

Changed

• License changed from BUSL-1.1 to MIT (#78)
• Updated all npm dependencies (TypeScript 4.9→5.9, webpack 5.99→5.105, node types 16→20) (#50)
• Extracted getExtensionPath for testability (#44)
• Removed legacy parser

Removed

• Stale documentation, scripts, and branches