Nov 8, 2021

A big thanks to the 33 contributors who made this release possible. Here are some highlights ✨:

• 🎉 Support custom elements under ButtonGroup (#28645) @ZeeshanTamboli
• 🛠 Add support for arrays in the sx prop (#29297) @siriwatknp
• And many more 🐛 bug fixes and 📚 improvements.

@mui/material@5.1.0

• ​[Autocomplete] Fix hiddenLabel prop of TextField variant={filled} inside Autocomplete (#29234) @jatinsandilya
• ​[Box] Support generateClassName and defaultClassName (#29347) @siriwatknp
• ​[ButtonGroup] Fix variant outlined always has primary color borders on hover (#29487) @ZeeshanTamboli
• ​[ButtonGroup] Support different elements under ButtonGroup (#28645) @ZeeshanTamboli
• ​[CssBaseline] Add enableColorScheme prop so enable using color-scheme property to deal with dark mode (#29454) @alexfauquette
• ​[FormControlLabel] Narrow the label type (#29324) @michaldudak
• ​[Grid] Fix usage when columns > 12 (#29196) @tanay123456789
• ​[InputBase] Do not repeat the same classname (#29353) @hbjORbj
• ​[InputBase] Remove WebkitAppearance from search type (#29383) @nicbarajas
• ​[ListItem] Add missing exports (#29571) @robcaldecott
• ​[Pagination] Allow customization of icons (#29336) @mbeltramin
• ​[TextField] Fix bootstrap, normalize.css, sanitize.css conflicts (#28674) @ChrisClaude
• ​[TextField] Fix invisible wrap within notched inputs (#29088) @DASPRiD
• ​[Tooltip] open prop in componentsProps.popper can be optional (#29370) @ZeeshanTamboli
• ​[Tooltip] Fix className not getting applied from PopperProps (#29023) @ZeeshanTamboli
• ​[useRadioGroup] Convert to TypeScript (#29326) @eps1lon

@mui/system@5.1.0

• ​[system] Introduce mode to CssVarsProvider (#29418) @siriwatknp
• ​[system] Improve breakpoints resolver function (#29300) @hbjORbj
• ​[system] Add array support for sx prop (#29297) @siriwatknp

@mui/codemod@5.1.0

• ​[codemod] Add codemod parser flag (#29059) (#29229) @ElonVolo

@mui/lab@5.0.0-alpha.54

• ​[DatePicker] Fix disabled/readOnly for view components (#28815) @adamfitzgibbon
• ​[Masonry] Fix crash on unmount when using React 18 (#29358) @eps1lon
• ​[Masonry] Improve height computation and detect changes in children (#29351) @hbjORbj

@mui/joy@5.0.0-alpha.0

• ​[Joy] Update default theme (#29478) @siriwatknp
• ​[Joy] Export CssVarsProvider with default theme (#29150) @siriwatknp
• ​[Joy] Remove private to leverage CodeSandbox (#29280) @siriwatknp

Docs

• ​[docs] Add differences between styled and sx (#28685) @eric-burel
• ​[docs] Track usage of dark mode in Google Analytics (#29419) @oliviertassinari
• ​[docs] Remove create-mui-theme as it is no longer working (#29472) @IPJT
• ​[docs] Fix warnings in AppSearch (#29459) @eps1lon
• ​[docs] Add framework example for ClassNameGenerator (#29453) @siriwatknp
• ​[docs] Fix layout shift when scrolling (#29436) @oliviertassinari
• ​[docs] Fix layout-shift on id='main-content' (#29425) @oliviertassinari
• ​[docs] Remove usage of process.browser (#29438) @oliviertassinari
• ​[docs] Add instruction on how to use the child selector API with emotion (#29350) @mnajdova
• ​[docs] Fix small typos (#29424) @oliviertassinari
• ​[docs] Fix TOC highlighting logic (#29435) @oliviertassinari
• ​[docs] Fix about page flags (#29314) @mbrookes
• ​[docs] Fix Box JS docs (#29282) @Pablion
• ​[docs] Update storybook section in migration to v5 docs (#28800) @siriwatknp
• ​[docs] Document how to enable color on dark mode (#29340) @Wimukti
• ​[docs] Display search functionality in all viewports (#28819) @eps1lon
• ​[docs] Query heading for ToC on demand (#29204) @eps1lon
• ​[docs] Add next.js styled-component guide and update links to example (#29118) @Jareechang
• ​[docs] Fix overriding MuiTextField's default props in the migration guide (#29174) @tm1000
• ​[docs] Fix "clickable" and "deletable" typos (#28702) @jacklaurencegaray
• ​[docs] Update migration-v4 docs for wrong import path (#29042) @busches
• ​[docs] Add GitHub icon change to "Migration from v4 to v5" guide (#29182) @dan-mba
• ​[website] Benny Joo joining MUI (#29499) @mnajdova
• ​[website] Update the Print export feature info on the pricing page (#29484) @DanailH
• ​[website] Improve the dev rel role description (#29477) @oliviertassinari
• ​[website] Add customers section on Design Kits and Templates marketing pages (#29168) @danilo-leal
• ​[website] Improvements to the /core product page @danilo-leal
• ​[website] Fix typo on the About Page (#29286) @gssakash

Core

• ​[core] Handle RecordType and FieldType in generatePropDescription.ts (#29467) @flaviendelangle
• ​[core] Convert a named color to lowercase (#29465) @ainatenhi
• ​[core] Allow to reuse functions from docs:api (#28828) @m4theushw
• ​[core] Commit new nextjs 12 tsconfig (#29458) @eps1lon
• ​[core] Settle on MUI X for the official name (#29420) @oliviertassinari
• ​[core] Add mui as a npm keyword (#29427) @oliviertassinari
• ​[core] Fix issue template redirection (#29432) @oliviertassinari
• ​[core] Remove unecessary destructuration (#29354) @oliviertassinari
• ​[core] Use cross-env to set env variables in material-icons scripts (#29327) @michaldudak
• ​[core] Don't bump peer dependency ranges on dependency updates (#29303) @eps1lon
• ​[test] Fix browser tests (#29505) @eps1lon
• ​[test] Fix missing act warnings in latest React 18 alpha (#29357) @eps1lon
• ​[test] Replace createClientRender with new createRenderer API (#29471) @eps1lon
• ​[test] Fix possible "missing act" warning (#29463) @eps1lon
• ​[test] Remove render#baseElement (#29462) @eps1lon
• ​[test] Expose AbortController on global (#29360) @eps1lon
• ​[test] Add internal test for uniqe name in Rating (#29329) @eps1lon
• ​[test] Fix browser tests (#29305) @eps1lon

All contributors of this release in alphabetical order: @adamfitzgibbon, @ainatenhi, @alexfauquette, @busches, @ChrisClaude, @dan-mba, @DanailH, @danilo-leal, @DASPRiD, @ElonVolo, @eps1lon, @eric-burel, @flaviendelangle, @gssakash, @hbjORbj, @IPJT, @jacklaurencegaray, @Jareechang, @jatinsandilya, @m4theushw, @mbeltramin, @mbrookes, @michaldudak, @mnajdova, @nicbarajas, @oliviertassinari, @Pablion, @robcaldecott, @siriwatknp, @tanay123456789, @tm1000, @Wimukti, @ZeeshanTamboli