1NEWS for v5.1.0 2 3This is primarily a maintenance release. 4 5The most notable update is that regular expression (RE) searches are 6supported again. In ancient times, most supported RE searches, but 7was RE support was dropped was dropped when UTF-8 support was added. 8The default is still to use a non-RE search. The -r command line 9switch may be used to make the default a RE-based search. Within 10most, ":r" may be used to toggle the search type between RE and 11non-RE. 12 13