Found the following validation problem for the NEWS.Rd HTML conversion:
NEWS.html:566:1 (inst/NEWS.Rd:281): Warning: missing </ul> before </div>
NEWS.html:98:1 (inst/NEWS.Rd:42): Warning: <h4> anchor "Additions" already defined
NEWS.html:114:1 (inst/NEWS.Rd:52): Warning: <h4> anchor "Additions" already defined
NEWS.html:134:1 (inst/NEWS.Rd:62): Warning: <h4> anchor "Bugs-fixed" already defined
NEWS.html:149:1 (inst/NEWS.Rd:70): Warning: <h4> anchor "Additions" already defined
NEWS.html:164:1 (inst/NEWS.Rd:79): Warning: <h4> anchor "Additions" already defined
NEWS.html:185:1 (inst/NEWS.Rd:89): Warning: <h4> anchor "Additions" already defined
NEWS.html:209:1 (inst/NEWS.Rd:100): Warning: <h4> anchor "Additions" already defined
NEWS.html:224:1 (inst/NEWS.Rd:108): Warning: <h4> anchor "Additions" already defined
NEWS.html:248:1 (inst/NEWS.Rd:120): Warning: <h4> anchor "Additions" already defined
NEWS.html:263:1 (inst/NEWS.Rd:129): Warning: <h4> anchor "Additions" already defined
NEWS.html:278:1 (inst/NEWS.Rd:138): Warning: <h4> anchor "Additions" already defined
NEWS.html:296:1 (inst/NEWS.Rd:148): Warning: <h4> anchor "Additions" already defined
NEWS.html:314:1 (inst/NEWS.Rd:159): Warning: <h4> anchor "Additions" already defined
NEWS.html:341:1 (inst/NEWS.Rd:173): Warning: <h4> anchor "Additions" already defined
NEWS.html:376:1 (inst/NEWS.Rd:190): Warning: <h4> anchor "Additions" already defined
NEWS.html:387:1 (inst/NEWS.Rd:196): Warning: <h4> anchor "Bugs-Fixed" already defined
NEWS.html:402:1 (inst/NEWS.Rd:205): Warning: <h4> anchor "Additions" already defined
NEWS.html:415:1 (inst/NEWS.Rd:211): Warning: <h4> anchor "Bugs-Fixed" already defined
NEWS.html:430:1 (inst/NEWS.Rd:219): Warning: <h4> anchor "Additions" already defined
NEWS.html:441:1 (inst/NEWS.Rd:225): Warning: <h4> anchor "Bugs-Fixed" already defined
NEWS.html:459:1 (inst/NEWS.Rd:233): Warning: <h4> anchor "Additions" already defined
NEWS.html:470:1 (inst/NEWS.Rd:239): Warning: <h4> anchor "Bugs-Fixed" already defined
NEWS.html:485:1 (inst/NEWS.Rd:247): Warning: <h4> anchor "Additions" already defined
NEWS.html:502:1 (inst/NEWS.Rd:254): Warning: <h4> anchor "Bugs-Fixed" already defined
NEWS.html:517:1 (inst/NEWS.Rd:262): Warning: <h4> anchor "Additions" already defined
NEWS.html:552:1 (inst/NEWS.Rd:276): Warning: <h4> anchor "Bugs-Fixed" already defined