v5.0.0-alpha.21

Dec 30, 2020

Big thanks to the 14 contributors who made this release possible. Here are some highlights ✨:

• 👩‍🎤 Migrate the Avatar to emotion (#24114) @oliviertassinari
• 👩‍🎤 Migrate the Button to emotion (#24107, #24100) @mnajdova
• ♿️ Improve TrapFocus behavior, ignore the container as a tabbable element (#23364) @gregnb
  In rare cases, an element might not longer be tabbable when looping, e.g. overflow container in Firefox.
  You can work around the problem by adding a tabIndex={0} or customizing the getTabbable prop.
• And many more 🐛 bug fixes and 📚 improvements.

@material-ui/core@v5.0.0-alpha.21/@material-ui/unstyled@v5.0.0-alpha.21

• [Avatar] Migrate to emotion (#24114) @oliviertassinari
• [ButtonBase] Migrate styles to emotion (#24100) @mnajdova
• [Button] Migrate styles to emotion (#24107) @mnajdova
• [unstyled] Add utils for generating utility classes (#24126) @mnajdova
• [TrapFocus] Fix trap to only focus on tabbable elements (#23364) @gregnb
• [Link] Improve integration with Next.js (#24121) @kelvinsanchez15
• [Select] Fix overflow showing scrollbar (#24085) @Segebre
• [Slider] Fix circular type reference in SliderValueLabel (#24190) @eps1lon
• [Skeleton] Fix default TypeScript component type (#24191) @eps1lon

@material-ui/system@v5.0.0-alpha.21

• [system] Fix sx prop typings to support grid gap props (#24093) @mnajdova
• [system] Improve the SxProp typings structure, by splitting them in a separate module. (#24090) @mnajdova
• [system] Replace grid gap properties (#24094) @mnajdova

@material-ui/lab@v5.0.0-alpha.21

• [DatePicker] Allow to customize icons (#24017) @jackcwu
• [DatePicker] Fix missing component for theme augmentation (#24092) @rajzik
• [DatePicker] Hide outline on container (#24108) @oliviertassinari
• [DatePicker] Fix accessibility issue with heading (#24183) @gracektay
• [TimePicker] Improve the design to fit on smaller screens (#23855) @marianayap
• [TreeView] Add preventScroll for tree focus (#24105) @praveenkumar-kalidass

@material-ui/styles@v5.0.0-alpha.21

• [styles] Fix for supporting non string props in propsToClassKey (#24101) @mnajdova

@material-ui/styled-engine@v5.0.0-alpha.21/@material-ui/styled-engine-sc@v5.0.0-alpha.21

• [styled-engine] Fix StylesProvider injectFirst with sc (#24104) @mnajdova

Docs

• [docs] Add examples for adding and removing Typography variants (#24088) @mnajdova
• [docs] Fix typo (#24123) @Ajonp
• [docs] Fix warning about wrong prop type (#24117) @mnajdova
• [docs] Rename "Customization > Theme > Global" to "Customization > Theme > Components" (#24115) @mnajdova
• [docs] Rename customization/components to customization/how-to-customize (#24089) @mnajdova
• [docs] Replace process.browser with typeof navigator (#24122) @softshipper
• [docs] Sync translations (#24152) @l10nbot
• [docs] Update Fontsource install instructions (#24120) @DecliningLotus
• [docs] Add system grid page (#24119) @mnajdova
• [blog] 2020 in review and beyond (#24130) @oliviertassinari
• [docs] Improve naming and structure of the Customization and Guide pages (#24175) @mnajdova

Core

• [core] Batch small changes (#24131) @oliviertassinari
• [core] Fix overridesResolver on the core components and added tests (#24125) @mnajdova
• [core] Reduce number of files included in language server (#24165) @eps1lon
• [core] Reduce response time of initial PR bot comment (#24168) @eps1lon
• [core] Refactor styled() components to ease out the migration process (#24124) @mnajdova
• [test] Add more packages to browser test suite (#24155) @eps1lon
• [core] Monitor progress of fixing type imports (#24188) @eps1lon
• [core] Fix build on Windows (#24187) @oliviertassinari