Cygwin 64-bit 3.1.6 freeware
Cygwin is a Linux-like environment for Windows. It consists of two parts:
# A DLL (cygwin1.dll) which acts as a Linux API emulation layer providing substantial Linux API functionality.
# A collection of tools which provide Linux look and feel.
|Author||Red Hat, Inc.|
|OS||Windows XP, Windows Vista x64, Windows 7 x64, Windows 8 x64, Windows 10 x64|
|Installation||Instal And Uninstall|
|Keywords||Linux-like environment x64, linux on windows x64, emulation layer x64, linux x64, emulation x64, emulate x64|
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|3.1.6||Jul 13, 2020||New Release||This is mainly a bugfix release.
Support more IPPROTO_TCP socket options: TCP_FASTOPEN, TCP_KEEPIDLE, TCP_KEEPCNT, TCP_KEEPINTVL, TCP_QUICKACK, TCP_USER_TIMEOUT.
Fix IPPROTO_TCP option handling, especially in terms of TCP_MAXSEG.
Fix a buffer overrun in Cygwin-internal string comparison.
Fix microcode registry lookup for /proc/cpuinfo output.
|3.1.5||Jun 1, 2020||New Release||What changed:
Support WSL symlinks. Create those by default now.
FIFOs can now be opened multiple times for reading.
Fix accidental evaluation of NUL () characters in xterm console output.
Don't move cursor to the right in case of a NUL character in the console
output stream, this is not backed by terminfo.
Fix a segfault when starting, e.g., mintty from a bash in a console
running xterm emulation.
Fix TIOCINQ to always return number of inbound chars if available.
Fix error handling in raw disk writes and allow full disk writes
including necessary locking on floppies as well.
Fix several FIFO bugs.
|3.1.4||Feb 19, 2020||New Release||Allow symlinks to be opened with O_PATH | O_NOFOLLOW.
Allow the pathname argument to readlinkat(2) to be an empty string, provided the dirfd argument refers to a symlink opened with O_PATH | O_NOFOLLOW. The readlinkat call then operates on that symlink.
Support the Linux-specific AT_EMPTY_PATH flag for fchownat(2) and fstatat(2).
Allow AF_LOCAL sockets to be opened with O_PATH.
<signal.h>: New macro _NSIG replacing NSIG. NSIG is now only visible to MISC builds, as on Linux.
The new locale modifier @cjksingle allows enforcing of single-width character property for usually double-widthed characters. This will be supported by upcoming mintty releases. For the reasoning, see https://gitlab.freedesktop.org/terminal-wg/specifications/issues/9.
Define CPU_SETSIZE, as on Linux. Addresses: https://cygwin.com/ml/cygwin/2019-12/msg00248.html
Fix a regression that prevented the root of a drive from being the Cygwin installation root.