Modernized async/dependency stack, plus fixes found through it:
- Replaced requests (upstream feature-freeze) with niquests for DLL-download fallback — HTTP/2/3, actively maintained
- Settings migrated from config.ini to config.toml (msgspec) — automatic, non-destructive one-time migration
- Adopted anyio for structured concurrency across update/scan/database — consolidated several separate thread pools into shared, properly-bounded limiters
- Logging now runs through a background queue instead of blocking on every call
- Fixed: deadlock in the high-performance batch updater that could freeze the progress dialog partway through a large batch
- Fixed: Games Library not showing updated DLL versions after a batch update if the tab hadn't been opened yet that session
- Fixed: HyperParallelLoader briefly blocking the UI event loop during thread-pool dispatch
Full Changelog: V4.2.2...V4.2.3