Found the following validation problem for the NEWS.Rd HTML conversion:
NEWS.html:611:1 (inst/NEWS.Rd:484): Warning: missing </ul> before </div>
NEWS.html:68:1 (inst/NEWS.Rd:97): Warning: <h4> anchor "BUG-FIXES" already defined
NEWS.html:95:1 (inst/NEWS.Rd:115): Warning: <h4> anchor "NEW-FEATURES" already defined
NEWS.html:108:1 (inst/NEWS.Rd:123): Warning: <h4> anchor "BUG-FIXES" already defined
NEWS.html:121:1 (inst/NEWS.Rd:131): Warning: <h4> anchor "OTHER-USER-VISIBLE-CHANGES" already defined
NEWS.html:143:1 (inst/NEWS.Rd:146): Warning: <h4> anchor "NEW-FEATURES" already defined
NEWS.html:157:1 (inst/NEWS.Rd:154): Warning: <h4> anchor "BUG-FIXES" already defined
NEWS.html:176:1 (inst/NEWS.Rd:168): Warning: <h4> anchor "OTHER-USER-VISIBLE-CHANGES" already defined
NEWS.html:194:1 (inst/NEWS.Rd:180): Warning: <h4> anchor "BUG-FIXES" already defined
NEWS.html:212:1 (inst/NEWS.Rd:191): Warning: <h4> anchor "OTHER-USER-VISIBLE-CHANGES" already defined
NEWS.html:229:1 (inst/NEWS.Rd:203): Warning: <h4> anchor "NEW-FEATURES" already defined
NEWS.html:287:1 (inst/NEWS.Rd:239): Warning: <h4> anchor "BUG-FIXES" already defined
NEWS.html:300:1 (inst/NEWS.Rd:248): Warning: <h4> anchor "OTHER-USER-VISIBLE-CHANGES" already defined
NEWS.html:332:1 (inst/NEWS.Rd:269): Warning: <h4> anchor "NEW-FEATURES" already defined
NEWS.html:350:1 (inst/NEWS.Rd:280): Warning: <h4> anchor "OTHER-USER-VISIBLE-CHANGES" already defined
NEWS.html:363:1 (inst/NEWS.Rd:288): Warning: <h4> anchor "BUG-FIXES" already defined
NEWS.html:396:1 (inst/NEWS.Rd:311): Warning: <h4> anchor "NEW-FEATURES" already defined
NEWS.html:429:1 (inst/NEWS.Rd:332): Warning: <h4> anchor "BUG-FIXES" already defined
NEWS.html:442:1 (inst/NEWS.Rd:341): Warning: <h4> anchor "OTHER-USER-VISIBLE-CHANGES" already defined
NEWS.html:479:1 (inst/NEWS.Rd:364): Warning: <h4> anchor "NEW-FEATURES" already defined
NEWS.html:506:1 (inst/NEWS.Rd:386): Warning: <h4> anchor "BUG-FIXES" already defined
NEWS.html:535:1 (inst/NEWS.Rd:410): Warning: <h4> anchor "OTHER-USER-VISIBLE-CHANGES" already defined
NEWS.html:570:1 (inst/NEWS.Rd:445): Warning: <h4> anchor "NEW-FEATURES" already defined