DBreeze

Provides multi-threaded ACID compliance with deadlock resolution, ensuring reliable data operations in concurrent environments, as stated in the key features.

Combines key-value storage, object database capabilities, text search, and vector similarity search in one system, offering versatility for complex applications without external dependencies.

Runs on .NET Framework, .NET Core, Xamarin, Unity, and UWP across Linux, Windows, and macOS, making it highly portable within the .NET ecosystem.

Uses Liana-Trie indexing to maintain consistent insert/update/remove speeds without defragmentation, as highlighted in the features, ensuring long-term reliability.