• Tabpane: assume text=true when ... #1749
• Improve tab-show algorithm so that each tabpane gets at most one show() call for its tabs
• ...

Related:

• Previous Tabpane shortcode fixes and enhancements (23Q3-Q4) #1641
• Look into (from @titusfortner):
  • Set language for tabs in URL query #1202
  • keep height of persistent language tabs constant #1227