*** *** *** *** *** *** *** *** *** *** RELEASE NOTES *** *** ***** *** *** *** *** *** *** *** 1) RELEASE NOTES: --- ---- The release notes are now provided in PDF format in the file: \\SOFTWARE\\uCOS-II\\DOC\\RelV251.PDF

在内存运行软件，而不需要将其释放到磁盘上，这样可以有效保护自己的软件。-Running software in memory without having to be released on to disk, this can effectively protect their software.

操作系统的线程管理,使用软件的方法,防止临界区产生错误,保护临界区并对并发线程保护,无死锁现象.-The operating system' s thread management, use of software methods to prevent the critical error, protect critical areas and the protection of concurrent threads, deadlock phenomenon.