+=item B<--pack-executables>
+
+This option has been removed in febootstrap 2.5. In previous versions
+it was used to pack executables using the external C<upx> program.
+However it was not enabled by default and never worked very
+effectively.
+
+=back
+
+=head1 TODO
+
+=over 4
+
+=item *
+
+Deduplicate files with the same content (by hardlinking them).
+See the program L<hardlink(1)>.
+
+=item *
+
+Remove unused binaries.
+
+=item *
+
+Remove unused libraries.
+