NewLife.Core

NewLife.Core - Core Library

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NewLife.Core is the foundation of the NewLife ecosystem: one package for logging, configuration, caching, networking, serialization, scheduling, object container and APM tracing. It is NativeAOT-ready, ships runtime messages in 31 languages, targets 11 frameworks from net45 to net10.0, and powers XCode, Cube, Redis, Stardust and 30+ sibling projects.

Core library tutorial: https://newlifex.com/core

Contents: Quick Start · Why NewLife.Core · Main Features · Ecosystem Map · Documentation · Contributing · Team · License

Quick Start

Install

dotnet add package NewLife.Core

Minimal example

using NewLife.Caching;
using NewLife.Log;

XTrace.UseConsole();                    // console log (also writes to file)
XTrace.WriteLine("Hello NewLife");

var cache = new MemoryCache();          // in-memory cache
cache.Set("key", "value", 60);          // expires in 60 seconds
var value = cache.Get<String>("key");   // read back

Template scaffolding

Run the following commands in a command line to quickly experience NewLife components:

dotnet new install NewLife.Templates
dotnet new nconsole --name test
cd test
dotnet run

Platform support

Why NewLife.Core

• One package for common infrastructure: logging, configuration, caching, networking, serialization, scheduling, object container and DI — a single reference is enough.
• Broad coverage, modern runtime: 11 target frameworks in one package (net45 → net10.0, including Windows variants), NativeAOT-ready on the core path, and runtime messages localized into 31 languages — the same API for legacy systems and new projects.
• Proven at ecosystem scale: the same foundation runs XCode (single tables of 10 billion rows), Net (1.77M pps / 14.5 Gbps, TCP 1KB), Redis and Stardust (tens of billions of records).
• Restrained dependencies, permissive license: BCL and Microsoft compatibility packages only; MIT, so you can modify and rebrand (see License).

Main Features

Basic Extensions (10)

Logging and Tracing (2)

Scheduling (3)

Configuration System (4)

Serialization (7)

Caching (7)

High-Performance Buffers (7)

Application Framework (15)

Security and Tokens (3)

Networking (13)

RPC (ApiServer/ApiClient) has moved to NewLife.Remoting.

Ecosystem Map

NewLife is a layered ecosystem of independently versioned open-source projects. The map below is shared verbatim by every NewLife repository; each project links to its repository and its primary NuGet package.

Project	What it does	Downloads
Foundation
NewLife.Core	Logging, configuration, caching, networking, serialization, scheduling and APM tracing.
NewLife.XCode	Data middleware: single tables at the tens-of-billions scale, automatic sharding, read-write splitting, 10+ databases.
NewLife.Net	High-performance network library: 1.77M pps / 14.5 Gbps on a single machine (TCP 1KB, 2026-10), 4M long-lived TCP connections.
NewLife.Remoting	Protocol communication and RPC framework for client/server applications and IoT devices.
NewLife.Agent	Installs .NET applications as OS daemons: Windows services and Linux systemd.
NewLife.Templates	dotnet new project templates for console, web, API, service, data and IoT projects.
Data & Messaging
NewLife.Redis	Redis client with microsecond latency, millions of ops/s and built-in message queues.
NewLife.RocketMQ	Pure managed RocketMQ client for Apache RocketMQ and Alibaba Cloud Message Queue.
NewLife.MQTT	MQTT client and server, including Alibaba Cloud IoT connectivity.
NewLife.NovaDb	Hybrid database in C#: embedded or networked, relational, time-series, message queue and KV in one.
NewLife.MySql	MySql driver and helper layer built on the NewLife data stack.
Web, AI & Distributed
NewLife.Cube	Rapid admin-platform framework: permissions, SSO, OAuth server and CRUD scaffolding.
Stardust	Distributed service platform: node management, APM, configuration center, registry and release center.
AntJob	Distributed task and real-time data scheduling platform with sharding, retries and backfill.
NewLife.AI	Unified client for 46 LLM providers plus ChatAI, a ready-to-run web chat application.
Industrial & IoT
NewLife.IoT	IoT standard library defining protocol contracts and device abstractions.
NewLife.Modbus	Modbus TCP/RTU/ASCII implementation on top of NewLife.IoT.
NewLife.Siemens	Siemens PLC protocol on top of NewLife.IoT.
NewLife.Omron	Omron PLC protocol on top of NewLife.IoT.
NewLife.Melsec	Mitsubishi Melsec PLC protocol on top of NewLife.IoT.
NewLife.OPC	OPC client for industrial data access.	—
NewLife.BACnet	BACnet building-automation protocol stack.
ZeroIoT	Lightweight open-source IoT platform with gateway and device management.	—
Vehicle Telematics
NewLife.JT808	JT/T 808 vehicle positioning protocol: 70+ message bodies, 2011/2013/2019.
NewLife.JT809	JT/T 809 platform-to-platform protocol for transport authorities.
NewLife.JT1078	JT/T 1078 in-vehicle video: RTP parsing, FLV/fMP4 remuxing and live streaming.
Domain Components
NewLife.Office	One package for Excel, Word, PPT, PDF and 15+ document formats.
NewLife.Audio	Cross-platform audio: codecs, device I/O, DSP, containers and streaming.
NewLife.Video	Video codecs, container formats, frame processing and streaming.
NewLife.Map	Unified interface over Baidu, AMap, Tencent and Tianditu with geocoding and coordinate conversion.
NewLife.IP	IPv4 geolocation with an offline memory-mapped database and an online API fallback.
Tools & Products
CrazyCoder	Developer toolbox: network, serial port, crypto, regex, Modbus and MQTT.
GitCandy	Self-hosted Git source code management system.	—
LuckyClover	Installs the matching .NET runtime automatically when launched from an older host.	—

Badges show the primary package of each project; theme, extension and satellite packages are listed on their NuGet pages. The 30+ packages not listed here (FTP, LoRa, Office extensions, protocol drivers and more) are available under the NewLifeX organization and on newlifex.com.

Documentation

Guides

• Core Library Contents: index of core component articles, grouped by module
• AOT Compatibility Analysis: NativeAOT scope, measured conclusions (smoke 31/31), RID matrix and known boundaries
• Localization: supported languages and basic usage
• Mobile architecture: .NET mobile stack, UI framework selection, APK packaging and AOT notes
• Samples: console, service, Http, IoT and mobile samples

Release notes

• ChangeLog.md: version history

Contributing

Build and test

The solution opens in Visual Studio (latest release) and also builds with the .NET CLI; project files stay deliberately simple so that a fresh clone builds out of the box.

dotnet build NewLife.Core/NewLife.Core.csproj -c Release
dotnet test XUnitTest.Core -c Release

• Full parallel run: run-tests.ps1 (multi-host parallel, timeout guard and trx summary)
• NativeAOT smoke: AotSmoke/, CI in .github/workflows/aot.yml
• Benchmarks: Benchmark/ (BenchmarkDotNet)

Repository layout

Release

Push a v-prefixed tag (for example v12.0.2026.0927) to trigger .github/workflows/publish.yml. The workflow packs the package, publishes it to NuGet.org and GitHub Packages, and creates a GitHub Release whose notes are taken from the matching ChangeLog.md section (assets include nupkg and snupkg). A manual run only publishes packages and does not create a Release.

Development docs

The Doc/ directory keeps a capability documentation set that mirrors the code: requirements → feature tracking → architecture. These documents are written in Chinese.

• Requirements: vision, core goals and functional requirements
• Feature List: implementation, test and comment status of every feature
• Architecture Design: layering, components and key design decisions

Feedback

• Before submitting, make sure dotnet build and the relevant unit tests pass; follow the repository conventions for code style and commit messages.
• Report bugs and suggestions via Issue; Stars and PRs are welcome.

Team

Founded in 2002, the NewLife team has spent more than two decades on the .NET and IoT ecosystem, maintains nearly 100 open-source projects (34 of them core to this map), and delivers integrated software and hardware solutions for power, logistics, healthcare, industrial control and internet industries. We live by the motto "learning has no seniority — mastery earns respect".

Open-source components have been downloaded 6.48M times from NuGet (ecosystem-wide, as of 2026-10).

Website: https://newlifex.com · Open source organization: https://github.com/NewLifeX

WeChat Official Account: 智能大石头 (scan to follow)

License

This project is licensed under MIT; the strong-name certificate newlife.snk is published so you can build and replace assemblies yourself, and the sources may be modified and redistributed without attribution.

If this project is helpful to you, welcome to Star it, share it with your team, or provide improvement suggestions via Issue/PR.