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.NEXT (dotNext) is a set of powerful libraries aimed to improve development productivity and extend .NET API with unique features. Some of these features are planned in future releases of .NET platform but already implemented in the library:

Quick overview of additional features:

• Attachment of user data to an arbitrary objects
• Extended set ofatomic operations
• Fast conversion of bytes to hexadecimal representation and vice versa withHex class
• ManualResetEvent,ReaderWriterLockSlim and other synchronization primitives now have theirasynchronous versions
• Atomic memory access operations for arbitrary value types
• PipeExtensions provides high-level I/O operations for pipelines such as string encoding and decoding
• A rich set of high-performancememory buffers for efficient I/O
• String formatting, encoding and decoding with low GC pressure:dynamic char buffers
• Fully-featuredRaft implementation
• Fully-featuredHyParView implementation

All these things are implemented in 100% managed code on top of existing .NET API.

• Features
• API documentation
• Benchmarks
• NuGet Packages

Release Date: 06-29-2025

DotNext 5.23.0

• AddedAtomic.Read andAtomic.Write methods forlong andulong data types for cross-architecture support of atomic reads/writes
• Fixed compatibility with 32-bit arch forTimstamp data type

DotNext.Metaprogramming 5.23.0

• Updated dependencies

DotNext.Unsafe 5.23.0

• AddedUnmanagedMemory<T> data type that provides allocation of the blittable value in the unmanaged memory in CLS-compliant manner
• IntroducedUnmanagedMemory.Discard static method for detaching of the physical memory from the virtual memory page

DotNext.Threading 5.23.0

• Fixed compatibility with 32-bit arch for asynchronous primitives andIndexPool data type
• Replaced spin wait with the monitor lock for value task sources

DotNext.IO 5.23.0

• Updated dependencies

DotNext.Net.Cluster 5.23.0

• Introduced private memory allocation type forWriteAheadLog class
• Added support of Linux Transparent Huge Pages forWriteAheadLog class when private memory allocation is enabled
• WriteAheadLog.FlushAsync ensures that the background flush is completed

DotNext.AspNetCore.Cluster 5.23.0

• Updated dependencies

Changelog for previous versions locatedhere.

The libraries are versioned according toSemantic Versioning 2.0.

❌ - unsupported, ✅ - bug and security fixes only, ✔️ - active development

Philosophy of development process:

1. All libraries in .NEXT family are available for various .NET form factors: Mono, WASM, NativeAOT
2. Minimal set of dependencies
3. Provide high-quality documentation
4. Stay cross-platform
5. Provide benchmarks

.NEXT is used by several companies in their projects:

This project welcomes contributions and suggestions. Most contributions require you to agree to aContributor License Agreement (CLA) declaring that you have the right to, and actually do, grant usthe rights to use your contribution. For details, visithttps://cla.microsoft.com.

When you submit a pull request, a CLA-bot will automatically determine whether you need to providea CLA and decorate the PR appropriately (e.g., label, comment). Simply follow the instructionsprovided 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 theCode of Conduct FAQ orcontactconduct@dotnetfoundation.org with any additional questions or comments.