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User-visible changes in release 3.10:
* ln accepts a new option: --no-dereference (-n). With this option,
if the destination command line argument is a symlink to a directory,
use that as the destination instead of the file in the directory.
* `ln -i no-such-file existing-file' gives a diagnostic and fails.
Before, if you responded `yes' to the prompt it would both remove
`existing-file' and fail to make a link.
* du no longer requires read access to all of the directory components
of the current working directory on systems with fchdir.
* touch -d 'date' is no longer off by one hour.
* New program: sync.
* Fix bug in cp that made the commands `ln -s . s; cp -rd s r' incorrectly
create `r' as a symlink instead of as a regular file.
* du's -S and -c options now work when used together.
Before, the grand total was always reported to be zero.
Major changes in release 3.9:
* --help gives a one-line description of each option and shows the
correspondence between short and long-named options.
* work around systems with BROKEN_STAT_MACROS
* work around problem where $(srcdir)/config.h was used instead of
../config.h -- this happened only when building in a subdirectory
and when config.h remained in $(srcdir) from a previous ./configure.
* GNU chmod treats symlinks the same way other vendor's versions do.
Now symlinks listed on the command line are processed (they were
ignored before); the permissions of the dereferenced files are
changed. Symlinks encountered in recursive traversals are still
ignored. This makes GNU chmod act more like e.g. Sun's.
* configure uses config.h, so DEFS won't exceed preprocessor limits of
some compilers on the number of symbols defined via -D.
* ls and cp can handle mount points on more systems
* cp, mkdir, and rmdir long option --path renamed to --parents; --path
will still work for a while
* cp, ln, and mv convert `cp A B/' to cp A B/A when A is not a directory.
This change affects only the two-argument form of the commands. It makes
such commands fail when the target has a trailing slash but is not a
directory or symlink to a directory and the source is not a directory.
They used to succeed, ignoring the implicitly contradictory trailing slash.
Major changes in release 3.8:
* install isn't as likely to produce spurious errors
* avoid redundant compilations for `dir' and `vdir';
* configure properly defines STAT_STATFS2_BSIZE on a Pyramid MIServer
running OSx 5.1
Major changes in release 3.7:
* none
Major changes in release 3.6:
* `ln -s dir_pathname .' works when the pathname has a trailing slash
* with the --version option programs print the version and exit immediately
* GNU ls -f works like Unix ls -f
* mktime replacement works
Major changes in release 3.5:
* adds support for DEC Alpha under OSF/1
* configuring with gcc uses CFLAGS='-g -O' by default
* all programs accept --help and --version options
* long-named options must be introduced with `--'; `+' is no longer
accepted since it is incompatible with the POSIX.2 standard
* chmod accepts long-named options
* dd conv=unblock doesn't hang
* new df option --exclude=fstype
* new ls option --full-time
Major changes in release 3.4:
* cp -p and mv preserve setuid and setgid bits
* chown works on systems where sizeof(uid_t) != sizeof(int)
or sizeof(uid) != sizeof(gid)
* catch errors from spurious slashes at ends of arguments
Major changes in release 3.3:
* df sped up by not calling sync for every filesystem
* df ported to AIX (RS/6000 and PS/2), and SVR2 port fixed
* df -i now also prints the total number of inodes per filesystem
* ls sped up by not reading symlink contents unnecessarily
* du doesn't die on POSIX systems when the root filesystem is NFS mounted
* cp and mv report chown Permission denied errors when run by root
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