.NEXT (dotNext) is a set of powerful libraries designed for high-performance scenarios when your application expects near zero memory allocation and high flexibility. It is aimed to high-load microservices, database engines, actors, and various types of distributed applications. The feature list includes a rich set of efficient tools with low overhead:
- Buffer manipulations
- String building
- Monadic types
- Advanced GC notifications
- Low-level API to work with memory: alignment detection, type-safe unmanaged allocators, Span<T> manipulations
- Base64 streaming encoder/decoder
- Async-friendly SIEVE cache
- Async locks
- Extended LINQ Expression Trees and dynamic code generation tools with async lambdas for metaprogramming
- Raft Consensus Algorithm with extensions such as the failure detection
- Fast general-purpose Write Ahead Log
- TCP multiplexing protocol
- HyParView protocol implementation
All these things are implemented in 100% managed code on top of existing .NET API.
Release Date: 03-29-2026
- Fixed cancellation support in
BufferWriterSlim<T> BoxedValue<T>cannot be derived anymore (which was a bug)
- Updated dependencies
- Added cleanup callback for
OpaqueValue<T>that can be passed to the unmanaged code
- Added alternate lookup to
RandomAccessCache<TKey, TValue>class - Fixed false positive when the object cannot be returned to the object pool even if there is a free space in it
- Updated dependencies
DotNext.AspNetCore.Cluster 6.1.0
- Updated dependencies
The libraries are versioned according to Semantic Versioning 2.0.
| Version | .NET compatibility | Support Level |
|---|---|---|
| 0.x | .NET Standard 2.0 | ❌ |
| 1.x | .NET Standard 2.0 | ❌ |
| 2.x | .NET Standard 2.1 | ❌ |
| 3.x | .NET Standard 2.1, .NET 5 | ❌ |
| 4.x | .NET 6 | ❌ |
| 5.x | .NET 8 | ✅ |
| 6.x | .NET 10 | ✔️ |
❌ - unsupported, ✅ - bug and security fixes only, ✔️ - active development
Philosophy of development process:
- All libraries in .NEXT family are available for various .NET form factors: Mono, WASM, NativeAOT
- Minimal set of dependencies
- Provide high-quality documentation
- Stay cross-platform
- Provide benchmarks
.NEXT is used by several companies in their projects:
This project welcomes contributions and suggestions. Most contributions require you to agree to a Contributor License Agreement (CLA) declaring that you have the right to, and actually do, grant us the rights to use your contribution. For details, visit https://cla.microsoft.com.
When you submit a pull request, a CLA-bot will automatically determine whether you need to provide a CLA and decorate the PR appropriately (e.g., label, comment). Simply follow the instructions provided by the bot. You will only need to do this once across all repos using our CLA.
This project has adopted the .NET Foundation Code of Conduct. For more information see the Code of Conduct FAQ or contact conduct@dotnetfoundation.org with any additional questions or comments.