[Full Changelog](https://github.com/matrix-org/matrix-react-sdk/compare/v3.15.0...v3.16.0-rc.1) * Upgrade to JS SDK 9.9.0-rc.1 * Translations update from Weblate [\#5743](https://github.com/matrix-org/matrix-react-sdk/pull/5743) * Document behaviour of showReadReceipts=false for sent receipts [\#5739](https://github.com/matrix-org/matrix-react-sdk/pull/5739) * Tweak sent marker code style [\#5741](https://github.com/matrix-org/matrix-react-sdk/pull/5741) * Fix sent markers disappearing for edits/reactions [\#5737](https://github.com/matrix-org/matrix-react-sdk/pull/5737) * Ignore to-device decryption in the room list store [\#5740](https://github.com/matrix-org/matrix-react-sdk/pull/5740) * Spaces suggested rooms support [\#5736](https://github.com/matrix-org/matrix-react-sdk/pull/5736) * Add tooltips to sent/sending receipts [\#5738](https://github.com/matrix-org/matrix-react-sdk/pull/5738) * Remove a bunch of useless 'use strict' definitions [\#5735](https://github.com/matrix-org/matrix-react-sdk/pull/5735) * [SK-1] Fix types for replaceableComponent [\#5732](https://github.com/matrix-org/matrix-react-sdk/pull/5732) * [SK-2] Make debugging skinning problems easier [\#5733](https://github.com/matrix-org/matrix-react-sdk/pull/5733) * Support sending invite reasons with /invite command [\#5695](https://github.com/matrix-org/matrix-react-sdk/pull/5695) * Fix clicking on the avatar for opening member info requires pixel-perfect accuracy [\#5717](https://github.com/matrix-org/matrix-react-sdk/pull/5717) * Display decrypted and encrypted event source on the same dialog [\#5713](https://github.com/matrix-org/matrix-react-sdk/pull/5713) * Fix units of TURN server expiry time [\#5730](https://github.com/matrix-org/matrix-react-sdk/pull/5730) * Display room name in pills instead of address [\#5624](https://github.com/matrix-org/matrix-react-sdk/pull/5624) * Refresh UI for file uploads [\#5723](https://github.com/matrix-org/matrix-react-sdk/pull/5723) * UI refresh for uploaded files [\#5719](https://github.com/matrix-org/matrix-react-sdk/pull/5719) * Improve message sending states to match new designs [\#5699](https://github.com/matrix-org/matrix-react-sdk/pull/5699) * Add clipboard write permission for widgets [\#5725](https://github.com/matrix-org/matrix-react-sdk/pull/5725) * Fix widget resizing [\#5722](https://github.com/matrix-org/matrix-react-sdk/pull/5722) * Option for audio streaming [\#5707](https://github.com/matrix-org/matrix-react-sdk/pull/5707) * Show a specific error for hs_disabled [\#5576](https://github.com/matrix-org/matrix-react-sdk/pull/5576) * Add Edge to the targets list [\#5721](https://github.com/matrix-org/matrix-react-sdk/pull/5721) * File drop UI fixes and improvements [\#5505](https://github.com/matrix-org/matrix-react-sdk/pull/5505) * Fix Bottom border of state counters is white on the dark theme [\#5715](https://github.com/matrix-org/matrix-react-sdk/pull/5715) * Trim spurious whitespace of nicknames [\#5332](https://github.com/matrix-org/matrix-react-sdk/pull/5332) * Ensure HostSignupDialog border colour matches light theme [\#5716](https://github.com/matrix-org/matrix-react-sdk/pull/5716) * Don't place another call if there's already one ongoing [\#5712](https://github.com/matrix-org/matrix-react-sdk/pull/5712) * Space room hierarchies [\#5706](https://github.com/matrix-org/matrix-react-sdk/pull/5706) * Iterate Space view and right panel [\#5705](https://github.com/matrix-org/matrix-react-sdk/pull/5705) * Add a scroll to bottom on message sent setting [\#5692](https://github.com/matrix-org/matrix-react-sdk/pull/5692) * Add .tmp files to gitignore [\#5708](https://github.com/matrix-org/matrix-react-sdk/pull/5708) * Initial Space Room View and Creation UX [\#5704](https://github.com/matrix-org/matrix-react-sdk/pull/5704) * Add multi language spell check [\#5452](https://github.com/matrix-org/matrix-react-sdk/pull/5452) * Fix tetris effect (holes) in read receipts [\#5697](https://github.com/matrix-org/matrix-react-sdk/pull/5697) * Fixed edit for markdown images [\#5703](https://github.com/matrix-org/matrix-react-sdk/pull/5703) * Iterate Space Panel [\#5702](https://github.com/matrix-org/matrix-react-sdk/pull/5702) * Fix read receipts for compact layout [\#5700](https://github.com/matrix-org/matrix-react-sdk/pull/5700) * Space Store and Space Panel for Room List filtering [\#5689](https://github.com/matrix-org/matrix-react-sdk/pull/5689) * Log when turn creds expire [\#5691](https://github.com/matrix-org/matrix-react-sdk/pull/5691) * Null check for maxHeight in call view [\#5690](https://github.com/matrix-org/matrix-react-sdk/pull/5690) * Autocomplete invited users [\#5687](https://github.com/matrix-org/matrix-react-sdk/pull/5687) * Add send message button [\#5535](https://github.com/matrix-org/matrix-react-sdk/pull/5535) * Move call buttons to the room header [\#5693](https://github.com/matrix-org/matrix-react-sdk/pull/5693) * Use the default SSSS key if the default is set [\#5638](https://github.com/matrix-org/matrix-react-sdk/pull/5638) * Initial Spaces feature flag [\#5668](https://github.com/matrix-org/matrix-react-sdk/pull/5668) * Clean up code edge cases and add helpers [\#5667](https://github.com/matrix-org/matrix-react-sdk/pull/5667) * Clean up widgets when leaving the room [\#5684](https://github.com/matrix-org/matrix-react-sdk/pull/5684) * Fix read receipts? [\#5567](https://github.com/matrix-org/matrix-react-sdk/pull/5567) * Fix MAU usage alerts [\#5678](https://github.com/matrix-org/matrix-react-sdk/pull/5678)