Dpkg::BuildFlags: update embedded API changelog

scripts/Dpkg/BuildFlags.pm

@@ -390,6 +390,10 @@ the prepend operation everywhere.
 New method: $bf->load_maintainer_config() that update the build flags
 based on the package maintainer directives.
 
+=head Version 1.02
+
+New methods: $bf->get_features(), $bf->has_features(), $bf->set_feature().
+
 =head1 AUTHOR
 
 Raphaël Hertzog <hertzog@debian.org>