The following packages have been uploaded to the Cygwin distribution: * cygwin-3.1.6-1 * cygwin-devel-3.1.6-1 * cygwin-doc-3.1.6-1 This is mainly a bugfix release. What changed: ------------- - Support more IPPROTO_TCP socket options: TCP_FASTOPEN, TCP_KEEPIDLE, TCP_KEEPCNT, TCP_KEEPINTVL, TCP_QUICKACK, TCP_USER_TIMEOUT. Bug Fixes: ---------- - Fix IPPROTO_TCP option handling, especially in terms of TCP_MAXSEG. - Fix a buffer overrun in Cygwin-internal string comparison. Fixes: https://cygwin.com/pipermail/cygwin/2020-June/245226.html - Fix microcode registry lookup for /proc/cpuinfo output. Fixes: https://cygwin.com/pipermail/cygwin/2020-May/245063.html