MediaWiki:Gadget-WatchlistChangesBold.js

Note: After publishing, you may have to bypass your browser's cache to see the changes.

Firefox / Safari: Hold Shift while clicking Reload, or press either Ctrl-F5 or Ctrl-R (⌘-R on a Mac)
Google Chrome: Press Ctrl-Shift-R (⌘-Shift-R on a Mac)
Internet Explorer / Edge: Hold Ctrl while clicking Refresh, or press Ctrl-F5
Opera: Press Ctrl-F5.

$(document).ready( function() {
 var $message = $('#mw-wlheader-showupdated');
 if( $message.length == 1 ) {
  $message.html('Pages that have been changed since you last visited them are shown in <b>bold</b>.');
  $message.show(0); /* counters hiding in enhanced RC mode */
 }
});