IT++ 4.0.6 is the next maintenance release of the current IT++ stable branch (itpp-4-0). It fixes all the reported and noticed bugs since IT++ 4.0.5 was released and adds a few other minor modifications as described in the release notes.

一个通信系统的C语言库，便于开发有关通信系统方面的各个模块的软件，十分有用-A communication system C-language library, to facilitate the development of related communications systems for each module of the software, very useful