Update release candidate number in docs sidebar
Merge pull request #16911 from terminalmage/update-version-template

Update release candidate number in docs sidebar
Allowing iptables state to save rules if rule already exists and save=true
Fix typo
Merge pull request #16931 from cachedout/issue_16883

Fix typo
Merge pull request #16928 from garethgreenaway/16843_20147_7_iptables_save

fixes to iptables state.
Fix pre-required vs pre-requiring mixups in prereq doc
Merge pull request #16934 from basepi/prereqdocs16826

Fix pre-required vs pre-requiring mixups in prereq doc
Better error messages for failed dns resolution
Merge pull request #16938 from cachedout/issue_10466

Better error messages for failed dns resolution