Found the following validation problem for the NEWS.Rd HTML conversion:
NEWS.html:451:1 (inst/NEWS.Rd:233): Warning: missing </ul> before </div>
NEWS.html:51:1 (inst/NEWS.Rd:19): Warning: <h4> anchor "NEW-FEATURES" already defined
NEWS.html:62:1 (inst/NEWS.Rd:25): Warning: <h4> anchor "BUG-FIXES" already defined
NEWS.html:83:1 (inst/NEWS.Rd:35): Warning: <h4> anchor "NEW-FEATURES" already defined
NEWS.html:94:1 (inst/NEWS.Rd:41): Warning: <h4> anchor "BUG-FIXES" already defined
NEWS.html:112:1 (inst/NEWS.Rd:50): Warning: <h4> anchor "NEW-FEATURES" already defined
NEWS.html:123:1 (inst/NEWS.Rd:56): Warning: <h4> anchor "BUG-FIXES" already defined
NEWS.html:138:1 (inst/NEWS.Rd:64): Warning: <h4> anchor "NEW-FEATURES" already defined
NEWS.html:152:1 (inst/NEWS.Rd:71): Warning: <h4> anchor "BUG-FIXES" already defined
NEWS.html:167:1 (inst/NEWS.Rd:79): Warning: <h4> anchor "NEW-FEATURES" already defined
NEWS.html:178:1 (inst/NEWS.Rd:85): Warning: <h4> anchor "BUG-FIXES" already defined
NEWS.html:193:1 (inst/NEWS.Rd:93): Warning: <h4> anchor "NEW-FEATURES" already defined
NEWS.html:204:1 (inst/NEWS.Rd:99): Warning: <h4> anchor "BUG-FIXES" already defined
NEWS.html:225:1 (inst/NEWS.Rd:109): Warning: <h4> anchor "NEW-FEATURES" already defined
NEWS.html:242:1 (inst/NEWS.Rd:117): Warning: <h4> anchor "BUG-FIXES" already defined
NEWS.html:263:1 (inst/NEWS.Rd:128): Warning: <h4> anchor "NEW-FEATURES" already defined
NEWS.html:274:1 (inst/NEWS.Rd:134): Warning: <h4> anchor "BUG-FIXES" already defined
NEWS.html:290:1 (inst/NEWS.Rd:144): Warning: <h4> anchor "NEW-FEATURES" already defined
NEWS.html:302:1 (inst/NEWS.Rd:151): Warning: <h4> anchor "BUG-FIXES" already defined
NEWS.html:317:1 (inst/NEWS.Rd:160): Warning: <h4> anchor "NEW-FEATURES" already defined
NEWS.html:329:1 (inst/NEWS.Rd:167): Warning: <h4> anchor "BUG-FIXES" already defined
NEWS.html:344:1 (inst/NEWS.Rd:176): Warning: <h4> anchor "NEW-FEATURES" already defined
NEWS.html:355:1 (inst/NEWS.Rd:182): Warning: <h4> anchor "BUG-FIXES" already defined
NEWS.html:370:1 (inst/NEWS.Rd:191): Warning: <h4> anchor "NEW-FEATURES" already defined
NEWS.html:381:1 (inst/NEWS.Rd:197): Warning: <h4> anchor "BUG-FIXES" already defined
NEWS.html:396:1 (inst/NEWS.Rd:206): Warning: <h4> anchor "NEW-FEATURES" already defined
NEWS.html:411:1 (inst/NEWS.Rd:215): Warning: <h4> anchor "BUG-FIXES" already defined
NEWS.html:426:1 (inst/NEWS.Rd:223): Warning: <h4> anchor "NEW-FEATURES" already defined
NEWS.html:437:1 (inst/NEWS.Rd:229): Warning: <h4> anchor "BUG-FIXES" already defined