v5.15.15

A big thanks to the 7 contributors who made this release possible. Here are some highlights ✨:
This release was mostly about 🐛 bug fixes and 📚 documentation improvements.

@mui/[email protected]

• [Autocomplete] Display options provided to the options prop even if loading is true (#41677) @ZeeshanTamboli
• [RadioGroup] Apply classnames (#41681) @ZeeshanTamboli

@mui/[email protected]

• Fix typo to avoid infinite recursion in function call (#41678) @ZeeshanTamboli

Docs

• [material-ui][Slider] Remove valueLabelFormat from restricted values demo so that the tooltip thumb label displays the same as the value text (#41679) @ZeeshanTamboli
• [material-ui] Remove deleted page from the sidenav (#41594) @danilo-leal
• [material-ui] Fix typo in CSS theme variables customization (#41680) @ZeeshanTamboli
• Continue migration of Base UI to sperate repository @oliviertassinari
• Add notification for MUI X v7 blog post (#41587) (#41605) @cherniavskii
• Update the versions dropdown to show v6 (#41557) @mnajdova

Core

• [blog] Link to Romain's blog post in MUI X v7 announcement post (#41641) @cherniavskii
• [blog] Blog post with MUI X v7.0.0 annoucement (#41563) (#41604) @cherniavskii
• [blog] Add post about remote (#41565) @danilo-leal
• [core] Continue rename of Toolpad @oliviertassinari
• [docs-infra] Add Toolpad product/category IDs to types (#41551) @bharatkashyap
• [website] Add Aarón to About Us (#41747) @aarongarciah
• [website] Add stray design adjustments throughout the site (#41642) @mnajdova
• [website] Update pricing table (#41606) @cherniavskii

All contributors of this release in alphabetical order: @aarongarciah, @bharatkashyap, @cherniavskii, @danilo-leal, @mnajdova, @oliviertassinari, @ZeeshanTamboli