|  | @@ -3977,7 +3977,7 @@ successfully.  For example, @w{@samp{tar --version}} might print:
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				|  |  |  
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				|  |  |  @smallexample
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				|  |  |  tar (GNU tar) @value{VERSION}
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				|  |  | -Copyright (C) 2013-2017 Free Software Foundation, Inc.
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				|  |  | +Copyright (C) 2013-2019 Free Software Foundation, Inc.
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				|  |  |  License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
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				|  |  |  This is free software: you are free to change and redistribute it.
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				|  |  |  There is NO WARRANTY, to the extent permitted by law.
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				|  | @@ -9552,8 +9552,8 @@ switch to @samp{posix}.
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				|  |  |  @GNUTAR{} is able to create and read compressed archives.  It supports
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				|  |  |  a wide variety of compression programs, namely: @command{gzip},
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				|  |  |  @command{bzip2}, @command{lzip}, @command{lzma}, @command{lzop},
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				|  |  | -@command{xz} and traditional @command{compress}. The latter is
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				|  |  | -supported mostly for backward compatibility, and we recommend
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				|  |  | +@command{zstd}, @command{xz} and traditional @command{compress}. The
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				|  |  | +latter is supported mostly for backward compatibility, and we recommend
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				|  |  |  against using it, because it is by far less effective than the other
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				|  |  |  compression programs@footnote{It also had patent problems in the past.}.
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				|  |  |  
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				|  | @@ -9694,6 +9694,10 @@ Filter the archive through @command{lzma}.
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				|  |  |  @item --lzop
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				|  |  |  Filter the archive through @command{lzop}.
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				|  |  |  
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				|  |  | +@opindex zstd
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				|  |  | +@item --zstd
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				|  |  | +Filter the archive through @command{zstd}.
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				|  |  | +
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				|  |  |  @opindex compress
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				|  |  |  @opindex uncompress
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				|  |  |  @item -Z
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