==== improving new features ====
===== iframe sandbox removal =====
Moved to [[HTML5/iframe#drop_sandbox_attribute|HTML5/iframe]].
===== summary naming =====
Moved to [[HTML5/summary#summary_naming|HTML5/summary]]
===== nesting time =====
Moved to [[HTML5/time#nesting_time|HTML5/time]]
==== waiting for HTML5 improvements ====
==== upgrade HTML4 features to be more flexible and usable ====
* moved to [[HTML5/del#datetime_should_take_date|HTML5/del]].
==== improving new features ====
===== iframe sandbox removal =====
Moved to [[HTML5/iframe#drop_sandbox_attribute|HTML5/iframe]].
==== lower priority improvements ====