From the FAQ, <a href="https://github.com/yue/help" rel="nofollow">https://github.com/yue/help</a><p>> But once you have done modifications to Yue's source code, all your code linked with Yue have to be open sourced with MS-RL. The only way to remove this limitation is to subscribe to Yue's paid plan.<p>> The license seems like a non starter.<p>> Note that the license of Yue has less restrictions than LGPL, it does not require you to open source your project when you statically link with Yue, or compile Yue's source code as part of your project.<p>> So if you are fine with LGPL libraries, there is no reason to worry about Yue's license.<p>> Yue is just another open source project with dual licenses, and it has less restrictions than most dual licenses projects.<p>With the LGPL you can change the code, compile and dynamically link <i>without</i> releasing your own code. It's a significant difference.