v4.2.0

July 6, 2019

Big thanks to the 24 contributors who made this release possible!

Here are some highlights ✨:

• ♿️ Fix the persisting aria-hidden logic of the Modal (#16392) @eps1lon
• 💄 Move the Slider component to the core (#16416).
• 💄 Introduce a new TextareaAutosize component (#16362).
• ⚛️ Migrate a few components to testing-library.
• 🚀 Remove two dependencies (react-event-listener and debounce).
• And many more 🐛 bug fixes 📚 improvements.

@material-ui/core@v4.2.0

• [Tabs] Use the correct window reference (#16497) @NMinhNguyen
• [Breadcrumbs] Add li to BreadcrumbsClassKey type (#16425) @le0nik
• [ButtonBase] Fix anchors with href having a button role (#16397) @eps1lon
• [ButtonBase] Improve test coverage (#16361) @eps1lon
• [CardMedia] Change prop requirements to conform html picture semantics (#16396) @maeertin
• [ClickAwayListener] Don't miss any click away events (#16446) @NMinhNguyen
• [FormControl] Add useFormControlState (#16467) @eps1lon
• [ListItemIcon] Add margin to line up when using flex-start (#16398) @slim-hmidi
• [ListItemSecondaryAction] Add missing types for props spread (#16411) @nsams
• [MenuItem] Fix type deceleration not using MenuItemClassKey (#16358) @merceyz
• [Menu] Fix autoFocus to work correctly with keepMounted (#16450) @ryancogswell
• [Modal] Fix persisting aria-hidden (#16392) @eps1lon
• [Modal] Make the modal demo style more "agnostic" (#16385) @oliviertassinari
• [Select] Fix node reference (#16401) @ffjanhoeck
• [Slider] Fix small step regression (#16395) @alitaheri
• [Slider] Fix textAlign prop affecting Slider rail (#16440) @mohan-cao
• [Slider] Move to core (#16416) @oliviertassinari
• [Tabs] Migrate to hooks (#16427) @oliviertassinari
• [TextareaAutosize] Fix one possible case of infinite render loop (#16387) @ZYinMD
• [TextareaAutosize] New public component (#16362) @oliviertassinari
• [Tooltip] Fix arrow demos (#16412) @favna

@material-ui/styles@v4.2.0

• [styles] Add test for removing styles via overrides (#16420) @eps1lon
• [styles] Handle props of type any in styled (#16356) @merceyz
• [styles] Support augmenting CSS properties (#16333) @merceyz

@material-ui/lab@v4.0.0-alpha.19

• [Slider] Move to core (#16416) @oliviertassinari

Docs

• [docs] Fix typo in TypeScript doc (#16365) @DDDDDanica
• [docs] Add missing page title for translations (#16375) @jaironalves
• [docs] Correct spelling imporant -> important (#16388) @rlfarman
• [docs] Fix typo in customizing components (#16404) @YipinXiong
• [docs] Fix typo in docs server (#16406) @thanasis00
• [docs] Fixed link to Button API in FAQ (#16370) @kxlow
• [docs] Improve example of Custom Pagination Actions Table (#16472) @bigtone1284
• [docs] Minor improvements (#16423) @eps1lon
• [docs] Reduce the headers font-size (#16433) @oliviertassinari
• [docs] Remove compose helper (#16429) @oliviertassinari
• [docs] Remove outdated references to the @next release (#16428) @davidoffyuy
• [docs] Replace hardcoded content with translation (#16380) @eps1lon
• [docs] Small ad information icon (#16438) @oliviertassinari
• [docs] Update displayEmpty prop description in Select API docs (#16376) @bigtone1284
• [docs] Update testing guide (#16368) @eps1lon
• [docs] Use full text of the code of conduct (#16417) @mbrookes
• [docs] [TableCell] Fix padding and size property descriptions (#16378) @the-question

Core

• [test] Simpler createClientRender (#16461) @eps1lon
• [ci] Move TypeScript tests into separate job (#16405) @eps1lon
• [ci] Persist/Report only if previous steps succeeded (#16432) @eps1lon
• [core] Improve test coverage (#16453) @eps1lon
• [core] Speed-up typechecking (#16413) @merceyz