Release 1.2.11

Added

• Add support for --capath and --proxy-capath configuration options (da9b0e9).
• Support --config=path to specify a configuration file (db65bb5).
• Add core unit testing suite using the Unity framework (e50d690).
• Add system integration test suite (89e5027).
• Add a debug memory allocation tracker and hardened memory allocations (e86afe8).

Changed

• Optimize Cache_open by caching file size locally and avoiding redundant system calls to Data_size (10e5208).
• Exclude integration tests from default Meson test runs, executing them only in CI or when explicitly requested (f13559b, 91a8295).
• Refactor fatal logging infrastructure (0753fc4).
• Refactor and enhance the FREE macro and fix format specifiers (ef80e80).
• Replace custom limit macros with standard limits.h constants (f9d4542).
• Run cache tests with multiple block sizes and recreate cache directory between iterations (6f889ac, 9fe774a).
• Install clang in build and pre-commit workflow environments, and upload Meson test logs as build artifacts (d6dd5d8, 4edc45b).
• Update documentation in src/README.md (unit/integration test guides) and USAGE.md (4d67613, bde2dfa).

Fixed

• Resolve concurrent cache initialization race in fs_open (64e8ea3).
• Correct off-by-one error in cache segment count calculation (4cba404).
• Prevent unbound MOUNT_DIR error in integration test cleanup (12b8cdd).
• Check for backtrace in libc before searching for execinfo in build configuration (ded25f9).
• Reset proxy_cafile correctly in Config_init (6a88d4d).
• Handle Link_download errors in cache mode (23ec785).