Cygwin 3.5.1 + x64

Fix exit code for non-cygwin process running in console. The bug
was introduced in 3.5.0.
Make the interface names handled by if_nametoindex() and if_indextoname()
consistent with that of if_nameindex().
Revert error handling for non-Cygwin child processes to use Cygwin's
error mode by default. Resetting the error mode to the OS default
error mode is now possible by using the new CYGWIN environment variable
option "winjitdebug".
Addresses: https://cygwin.com/pipermail/cygwin/2024-February/255305.html
Fix handle leak in pty master which occurs when non-cygwin process
is started in pty.
Addresses: https://github.com/msys2/msys2-runtime/issues/198
Fix the problem that VMIN and VTIME does not work at all in console.
Fix a bug that cannot handle consoles more than 32, rather than 64.
Fix gettimeofday not checking for a NULL pointer
Addresses: https://cygwin.com/pipermail/cygwin/2024-February/255473.html
Fix two bugs in strptime, error checking of invalid numerical input and
%p handling.
Fix newgrp(1) group handling. Only allow groups already in the user
token, as Windows doesn't allow otherwise.
Fix getgrent enumeration of local SAM accounts on domain member machines.

Drop support for Windows 7, Windows 8, Server 2008 R2 and Server 2012.
Console devices (/dev/consN) are now accessible by processes attached to other consoles or ptys.
newgrp(1) tool.
cygcheck has new options searching for available packages in the cygwin distro

- Make <sys/cpuset.h> safe for c89 compilations.
Addresses: https://cygwin.com/pipermail/cygwin-patches/2023q3/012308.html

- Make gcc-specific code in <sys/cpuset.h> compiler-agnostic.
Addresses: https://cygwin.com/pipermail/cygwin/2023-July/253927.html

- Fix AT_EMPTY_PATH handling in fchmodat and fstatat if dirfd referres to
a file other than a directory
Addresses: https://cygwin.com/pipermail/cygwin-patches/2023q2/012306.html

- Rename internal macros _NL_CTYPE_OUTDIGITSx_MB/WC to GLibc compatible
_NL_CTYPE_OUTDIGITx_MB/WC.
Addresses: https://cygwin.com/pipermail/cygwin-developers/2023-July/012637.html

- Fix memory leak in printf() regarding gdtoa-based _ldtoa_r().
Addresses: https://cygwin.com/pipermail/cygwin/2023-July/254054.html

- Fix a bug introduced in cygwin 3.4.5 that open_shared() does not set
access permissions as requested by its argument.

Bug Fixes:
Fix CPU_SET(3) macro type mismatch by making the macros type-safe.
Addresses https://cygwin.com/pipermail/cygwin/2023-March/253220.html
Kill(1): don't print spurious error message.
Addresses: https://cygwin.com/pipermail/cygwin/2023-March/253291.html
Align behaviour of dirname in terms of leading slashes to POSIX:
https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap04.html
Fix reading CONIN$ in non cygwin apps when stdin is not a pty.
Addresses https://cygwin.com/pipermail/cygwin/2023-April/253424.html
Fix bug in cygheap allocation size computation after fork. Addresses:
https://cygwin.com/pipermail/cygwin-developers/2023-April/012620.html
Fix return value of ilogbl(NaN).
Addresses: https://cygwin.com/pipermail/cygwin/2023-April/253511.html
Fix error handling in readlinkat.
Addresses: https://cygwin.com/pipermail/cygwin/2023-April/253510.html
Fix return code and errno set by renameat2, if oldfile and newfile
refer to the same file, and the RENAME_NOREPLACE flag is set.
Addresses: https://cygwin.com/pipermail/cygwin/2023-April/253514.html

никогда не пойму

Fix a bug in fhandler_dev_clipboard::read() that the second read fails with 'Bad address'.
Convert UNC path prefix back to drive letter in symlink_info::check(). This solves the following issues:
Fix a bug in pty code that input is wrongly sent to io_handle_nat rather than io_handle while neither read() nor select() is called after the cygwin app is started from non-cygwin app.
Avoid a crash when NtQueryInformationProcess returns invalid handle data.
Ignore INHERIT ACEs when reading the DACL of non-directory files.
Fix an "Invalid argument" problem in posix_spawn on i686.
Fix handling of AAAA records in Cygwin resolver code using native windows calls. Also fix various bugs in the resolver.
Fix a problem creating a dir "foo", if a file (but not a Cygwin symlink) "foo.lnk" already exists.
Fix double free for archetype, which is caused when open() fails.
Fix a permission problem when writing DOS attributes on Samba.