Found the following validation problem for the NEWS.Rd HTML conversion:
NEWS.html:370:1 (inst/NEWS.Rd:191): Warning: missing </ul> before </div>
NEWS.html:42:1 (inst/NEWS.Rd:18): Warning: <h4> anchor "BUG-FIXES" already defined
NEWS.html:68:1 (inst/NEWS.Rd:32): Warning: <h4> anchor "BUG-FIXES" already defined
NEWS.html:87:1 (inst/NEWS.Rd:42): Warning: <h4> anchor "NEW-FEATURES" already defined
NEWS.html:98:1 (inst/NEWS.Rd:47): Warning: <h4> anchor "BUG-FIXES" already defined
NEWS.html:113:1 (inst/NEWS.Rd:55): Warning: <h4> anchor "NEW-FEATURES" already defined
NEWS.html:124:1 (inst/NEWS.Rd:60): Warning: <h4> anchor "BUG-FIXES" already defined
NEWS.html:139:1 (inst/NEWS.Rd:68): Warning: <h4> anchor "NEW-FEATURES" already defined
NEWS.html:150:1 (inst/NEWS.Rd:73): Warning: <h4> anchor "BUG-FIXES" already defined
NEWS.html:165:1 (inst/NEWS.Rd:83): Warning: <h4> anchor "NEW-FEATURES" already defined
NEWS.html:184:1 (inst/NEWS.Rd:94): Warning: <h4> anchor "NEW-FEATURES" already defined
NEWS.html:195:1 (inst/NEWS.Rd:99): Warning: <h4> anchor "BUG-FIXES" already defined
NEWS.html:210:1 (inst/NEWS.Rd:108): Warning: <h4> anchor "NEW-FEATURES" already defined
NEWS.html:221:1 (inst/NEWS.Rd:113): Warning: <h4> anchor "BUG-FIXES" already defined
NEWS.html:236:1 (inst/NEWS.Rd:122): Warning: <h4> anchor "NEW-FEATURES" already defined
NEWS.html:247:1 (inst/NEWS.Rd:127): Warning: <h4> anchor "BUG-FIXES" already defined
NEWS.html:262:1 (inst/NEWS.Rd:136): Warning: <h4> anchor "NEW-FEATURES" already defined
NEWS.html:273:1 (inst/NEWS.Rd:141): Warning: <h4> anchor "BUG-FIXES" already defined
NEWS.html:288:1 (inst/NEWS.Rd:150): Warning: <h4> anchor "NEW-FEATURES" already defined
NEWS.html:299:1 (inst/NEWS.Rd:155): Warning: <h4> anchor "BUG-FIXES" already defined
NEWS.html:314:1 (inst/NEWS.Rd:164): Warning: <h4> anchor "NEW-FEATURES" already defined
NEWS.html:325:1 (inst/NEWS.Rd:169): Warning: <h4> anchor "BUG-FIXES" already defined
NEWS.html:344:1 (inst/NEWS.Rd:181): Warning: <h4> anchor "NEW-FEATURES" already defined
NEWS.html:355:1 (inst/NEWS.Rd:186): Warning: <h4> anchor "BUG-FIXES" already defined