3.5.0 — 2025-07-26

← 3.5.1 | 3.4.5 → | ↑ 3.x series

New Features

Protobuf DTO Support

• BaseProtobufDTO - Added new base class for Data Transfer Objects that can be converted to and from Protobuf messages
  • Provides seamless integration between Pydantic DTOs and Google Protocol Buffers
  • Supports bidirectional conversion with from_proto() and to_proto() methods
  • Includes runtime dependency checking for protobuf availability
  • Maintains type safety with proper error handling for missing protobuf dependencies

Bug Fixes

Type Safety Improvements

• ClassVar Type Variable Issue - Fixed critical type annotation issue in BaseProtobufDTO where ClassVar contained type variables
  • Resolved ClassVar parameter cannot include type variables error
  • Updated type annotations to use concrete Message type instead of type variables
  • Improved type safety by using proper concrete types for class variables
  • Added comprehensive type annotations for all methods and parameters

Code Quality Enhancements

• Import Cleanup - Removed invalid Unicode characters and simplified import structure
  • Fixed invisible Unicode character \uab that was causing linter errors
  • Streamlined protobuf import logic by removing unnecessary type variables
  • Enhanced code readability and maintainability
  • Added proper docstring formatting with Google-style documentation

Linting Configuration

• Ruff Configuration - Updated linting rules to accommodate protobuf DTO patterns
  • Added ANN401 exception for base_protobuf_dto.py to allow Any types in *args and **kwargs
  • Maintained strict type checking while allowing necessary flexibility for DTO inheritance patterns
  • Ensured all pre-commit hooks pass without compromising code quality standards