Fixes

• Check whether oldDom is present in the DOM (#4318, thanks @JoviDeCroock)
• Simplify the logic introduced in #4322 & use eventClock for capture events too (#4324, thanks @jviide)
• Use a virtual clock instead of Date.now() for event dispatch times (#4322, thanks @jviide)

Types

• Add template tag JSX type (#4334, thanks @marvinhagemeister)

Maintenance

• Integrate the new benchmarks repo and update (#4310, thanks @andrewiggins)
• Some byte improvements (#4321, thanks @JoviDeCroock)

Fixes

• Add special case for focusIn and focusOut (#4316, thanks @JoviDeCroock)

Features

• Add isMemo to compact to allow compatibility with react-is dependant libraries (#4302, thanks @ziongh)

Fixes

• Fix case where shrinking a list would cause an exception (#4312, thanks @JoviDeCroock)

Types

• Bring consistency to our focus-event types (#4307, thanks @JoviDeCroock)
• Add onScrollend listener type (#4305, thanks @JoviDeCroock)
• Align state updater type with Raeect (#4306, thanks @JoviDeCroock)

Fixes

• Revert batch commit callbacks from all components in the render queue (#4297, thanks @JoviDeCroock)

tl;dr: This release contains bug fixes for incorrect ordering of unkeyed children.

Fixes

• Match null placeholders using skewed index (#4290, thanks @andrewiggins)
• Fix increment skew when we aren't removing the first pointer (#4284, thanks @JoviDeCroock)
• Fix invalid vnode internal id for text nodes (#4291, thanks @marvinhagemeister)
• Fix unkeyed reconciliation order in certain scenarios (#4287, thanks @marvinhagemeister, thanks @JoviDeCroock)

Full Changelog: 10.19.5...10.19.6

Fixes

• Address scenario where we would crash when replacing a matched vnode with null (#4281, thanks @JoviDeCroock)
• Correctly restore _original (#4280, thanks @JoviDeCroock)
• Protect against nullish render (#4278, thanks @JoviDeCroock)
• Support setting translate through direct access (#3800, thanks @JoviDeCroock)

Types

• Add dpub aria 1.0 role JSX types (#4276, thanks @novari)

Fixes

• event-listeners in safari 12.3 fix (#4253, thanks @JoviDeCroock)
• support passing context into pure component (#4269, thanks @JoviDeCroock)
• retain masks across render invocations (#4245, thanks @JoviDeCroock)
• skip comment nodes for placeChild (#4128, thanks @JoviDeCroock)
• ensure we are able to support capture events from compat (#4243, thanks @JoviDeCroock)
• batch commit callbacks from all components in the render queue (#4234, thanks @developit)

Types

• improve preact compat types adding a few missing @types/react used by styled-components (#4271, thanks @jduthon)
• add ComponentType to preact/compat (#4239, thanks @ianobermiller)
• add missing contenteditable "inherit" value (#4242, thanks @marvinhagemeister)

Maintenance

• add some sensible timeouts to actions that call out to external services (#4259, thanks @andrewiggins)
• improve types of hook source (#4229, thanks @andrewiggins)

Bug Fixes

• Add MathML types (#4214, thanks @fekete965)
• Fix event handler event types for onInput, onBeforeInput and onSubmit (#4226, #4220, thanks @marvinhagemeister)
• Fix invalid vnodes not filtered out in children (#4219 , thanks @billti)

Maintenance

• Remove focus from event capturing tests (#4217, @andrewiggins)

Fixes

• Call options.vnode on rerender (#4209, thanks @andrewiggins)

Maintenance

• Fix tests in IE11 (#4211, thanks @andrewiggins)
• Add test for removing children of memoed components (#4210, thanks @andrewiggins)

Fixes

• Missing preact import error when using compat (#4206, thanks @JoviDeCroock)

Types

• Make children optional in Provider's typings (#4205, thanks @shicks)