+version 1.23.90 - (Git)
+
+* The --full-time option.
+
+New command line option `--full-time' instructs tar to output file
+time stamps to the full resolution.
+
+* Bugfixes.
+
+** More reliable directory traversal when creating archives
+
+Tar now checks for inconsistencies caused when a file system is
+modified while tar is creating an archive. In the new approach, tar
+maintains a cache of file descriptors to directories, so it uses more
+file descriptors than before, but it adjusts to system limits on
+the number of file descriptors. The new checks are implemented via
+the openat, fdopendir, fstatat, and readlinkat calls
+standardized by POSIX.1-2008. On an older system where these calls do
+not exist or do not return useful results, tar emulates the calls at
+some cost in efficiency and reliability.
+
+** Spurious error diagnostics on broken pipe.
+
+When receiving SIGPIPE, tar would exit with error status and
+"write error" diagnostics. In particular, this occurred if
+invoked as in the example below:
+
+ tar tf archive.tar | head -n 1
+
+** --remove-files
+
+Tar --remove-files failed to remove a directory which contained
+symlinks to another files within that directory.
+
+** --test-label behavior
+
+In case of a mismatch, `tar --test-label LABEL' exits with code 1,
+not 2 as it did in previous versions.
+
+The `--verbose' option used with `--test-label' provides additional
+diagnostics.
+
+Several volume labels may be specified in a command line, e.g.:
+
+ tar --test-label -f archive 'My volume' 'New volume' 'Test volume'
+
+In this case, tar exits with code 0 if any one of the arguments
+matches the actual volume label.
+
+** --label used with --update
+
+The `--label' option can be used with `--update' to prevent accidental
+update of an archive:
+
+ tar -rf archive --label 'My volume' .
+
+This did not work in previous versions, in spite of what the docs said.
+
+** --record-size and --tape-length (-L) options
+
+Usual size suffixes are allowed for these options. For example,
+-L10k stands for a 10 kilobyte tape length.
+
+** Fix dead loop on extracting existing symlinks with the -k option.
+
+\f
+version 1.23 - Sergey Poznyakoff, 2010-03-10