versions it worked only with --extract.
** New option --show-transformed-names enables display of transformed file
-or archive. In particular, when creating archive in verbose mode,
-the option lists member names as stored in the archive. It
-generalizes --show-stored-names option, introduced in 1.15.90. In
-particular, when creating an archive in verbose mode, it lists member
-names as stored in the archive, i.e., with any eventual prefixes
+or archive. It generalizes --show-stored-names option, introduced in
+1.15.90. In particular, when creating an archive in verbose mode, it lists
+member names as stored in the archive, i.e., with any eventual prefixes
removed and file name transformations applied. The option is useful,
for example, while comparing `tar cv' and `tar tv' outputs.
** New incremental snapshot file format keeps information about file names
as well as that about directories.
+** Option --checkpoint takes an optional argument specifying the number
+of records between the two successive checkpoints. Optional dot
+starting the argument intructs tar to print dots instead of textual
+checkpoints.
+
\f
version 1.15.90 - Sergey Poznyakoff, 2006-02-19