- Fix deadlock problem between atexit and dlclose processing which caused some programs to hang on exit.
- Fix handling of non-blocking pipes when read/write is attempted and previous I/O has not completed.
- Disable erroneous .exe/.lnk suffix handling for directories.
- Fix potentially corrupted locale information.
- Enable IPv6 support in rcmd(3) function, which was accidentally diabled since the function has been added to Cygwin 1.7.0.
- More relaxed Netapp FS recognition.
- Enable finding paths in backslash notation in calls to execvp/execlp.
- Modification and access timestamps of devices reflect the current time.
- Support for GB2312/EUC-CN. These charsets are implemented as aliases to GBK. GB2312 is now the default charset name for the locales zh_CN and zh_SG, just as on Linux.
- The Cygwin console emulation graphics mode switching now strictly follows ISO 2022.