New C++ Framework Gains Popularity: What Developers Need to Know

New framework for C++ is rapidly gaining popularity: overview and prospects

The world of C++ is an ecosystem where every new tool goes through a long path of recognition. However, at the beginning of 2025, the developer community was shaken by the news: a relatively young framework Async++ (the working name of the project, which gained more than 15,000 stars on GitHub in six months) is showing explosive growth in popularity. What is the secret and why should every C++ developer pay attention to it? Let's figure it out.

What is Async++ and how is it different?

Unlike classic libraries (Boost, Qt) or general-purpose frameworks, Async++ was created as a lightweight but powerful solution for asynchronous programming and high-load systems. Its key feature is full compatibility with modern C++17/20 standards and built-in support for coroutines.

The framework's developers set an ambitious goal: to make asynchronous code in C++ as simple and intuitive as in Python or JavaScript, while maintaining native performance and low-level control.

Key advantages that caused the hype

Why did this particular framework attract the attention of thousands of developers? Here are the main factors:

• Minimal entry threshold. To get started, you don't need to study monstrous libraries. The framework is connected via a single header file or CMake dependency.
• Native work with coroutines. Async++ provides ready-made primitives (Task, Generator, Stream) that integrate with co_await, co_return, and co_yield. Errors when working with asynchrony are minimized.
• Performance. Benchmarks show that the framework's overhead is less than 5% compared to "bare" asynchronous code on callbacks. This makes it suitable for real-time and embedded systems.
• Built-in event loop and thread pool. Developers do not need to manually manage thread pools — the framework takes care of this, automatically scaling to the number of processor cores.
• Active community. The project has open source code and detailed documentation. Over the last 3 months, the number of contributors has grown 4 times.

Where it is used and what developers say

The greatest interest in Async++ was shown by creators of web servers, microservices, and tools for working with network protocols. Early users note that the framework allows reducing the amount of code for typical tasks (for example, an HTTP client or WebSocket server) by 2-3 times compared to the traditional approach on boost::asio.

One of the early followers of the project, a lead developer at the company "TechnoSoft", shared his opinion: "We rewrote the order processing module from QtConcurrent to Async++. The code became cleaner, and the response time decreased by 12%. At the same time, we do not sacrifice memory control — this is still real C++".

Prospects and forecasts

Given the current dynamics, analysts predict that by the end of 2025, Async++ could enter the top 10 most used C++ libraries according to JetBrains. However, risks remain: competition with mature projects (Poco, Folly) and the need to support outdated compilers.

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