Found the following validation problem for the NEWS.Rd HTML conversion:
NEWS.html:468:1 (inst/NEWS.Rd:239): Warning: missing </ul> before </div>
NEWS.html:52:1 (inst/NEWS.Rd:19): Warning: <h4> anchor "BUG-FIXES" already defined
NEWS.html:71:1 (inst/NEWS.Rd:29): Warning: <h4> anchor "NEW-FEATURES" already defined
NEWS.html:82:1 (inst/NEWS.Rd:34): Warning: <h4> anchor "BUG-FIXES" already defined
NEWS.html:101:1 (inst/NEWS.Rd:44): Warning: <h4> anchor "BUG-FIXES" already defined
NEWS.html:116:1 (inst/NEWS.Rd:52): Warning: <h4> anchor "BUG-FIXES" already defined
NEWS.html:134:1 (inst/NEWS.Rd:61): Warning: <h4> anchor "NEW-FEATURES" already defined
NEWS.html:145:1 (inst/NEWS.Rd:66): Warning: <h4> anchor "BUG-FIXES" already defined
NEWS.html:161:1 (inst/NEWS.Rd:75): Warning: <h4> anchor "BUG-FIXES" already defined
NEWS.html:177:1 (inst/NEWS.Rd:84): Warning: <h4> anchor "NEW-FEATURES" already defined
NEWS.html:196:1 (inst/NEWS.Rd:94): Warning: <h4> anchor "NEW-FEATURES" already defined
NEWS.html:207:1 (inst/NEWS.Rd:99): Warning: <h4> anchor "BUG-FIXES" already defined
NEWS.html:222:1 (inst/NEWS.Rd:107): Warning: <h4> anchor "NEW-FEATURES" already defined
NEWS.html:244:1 (inst/NEWS.Rd:120): Warning: <h4> anchor "NEW-FEATURES" already defined
NEWS.html:272:1 (inst/NEWS.Rd:137): Warning: <h4> anchor "NEW-FEATURES" already defined
NEWS.html:283:1 (inst/NEWS.Rd:142): Warning: <h4> anchor "BUG-FIXES" already defined
NEWS.html:298:1 (inst/NEWS.Rd:150): Warning: <h4> anchor "BUG-FIXES" already defined
NEWS.html:330:1 (inst/NEWS.Rd:168): Warning: <h4> anchor "NEW-FEATURES" already defined
NEWS.html:348:1 (inst/NEWS.Rd:179): Warning: <h4> anchor "NEW-FEATURES" already defined
NEWS.html:371:1 (inst/NEWS.Rd:190): Warning: <h4> anchor "BUG-FIXES" already defined
NEWS.html:389:1 (inst/NEWS.Rd:200): Warning: <h4> anchor "BUG-FIXES" already defined
NEWS.html:404:1 (inst/NEWS.Rd:208): Warning: <h4> anchor "BUG-FIXES" already defined
NEWS.html:420:1 (inst/NEWS.Rd:217): Warning: <h4> anchor "NEW-FEATURES" already defined
NEWS.html:438:1 (inst/NEWS.Rd:226): Warning: <h4> anchor "NEW-FEATURES" already defined
NEWS.html:454:1 (inst/NEWS.Rd:235): Warning: <h4> anchor "NEW-FEATURES" already defined