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-rwxr-xr-xMaster/texmf/scripts/texlive/tlmgr.pl7
1 files changed, 6 insertions, 1 deletions
diff --git a/Master/texmf/scripts/texlive/tlmgr.pl b/Master/texmf/scripts/texlive/tlmgr.pl
index e4e39dde8e6..dd765ea315d 100755
--- a/Master/texmf/scripts/texlive/tlmgr.pl
+++ b/Master/texmf/scripts/texlive/tlmgr.pl
@@ -1584,7 +1584,8 @@ written to the terminal.
=item B<update> [I<option>] [I<pkg>...]
Updates the packages given as arguments to the latest version available
-at the installation source. Options:
+at the installation source. Either C<--all> or at least one I<pkg> name
+must be specified. Options:
=over 8
@@ -1611,6 +1612,10 @@ details.
=back
+If the package on the server is older than the package already installed
+(e.g., if the selected mirror is out of date), C<tlmgr> does not
+downgrade. Also, packages for uninstalled platforms are not installed.
+
=item B<backup> --backupdir I<dir> [B<--all>] [I<pkg>...]