Bump version to 4.0.0rc1 (#19473)

2 files changed, 131 insertions, 5 deletions

diff --git a/CHANGELOG.md b/CHANGELOG.md
index ed4cdd881..c161d95de 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,132 @@ Changelog
 
 All notable changes to this project will be documented in this file.
 
+## [Unreleased]
+
+Some of the features in this release have been funded through the [NGI0 Discovery](https://nlnet.nl/discovery) Fund, a fund established by [NLnet](https://nlnet.nl/) with financial support from the European Commission's [Next Generation Internet](https://ngi.eu/) programme, under the aegis of DG Communications Networks, Content and Technology under grant agreement No 825322.
+
+### Added
+
+- Add ability to filter followed accounts' posts by language ([Gargron](https://github.com/mastodon/mastodon/pull/19095), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/19268))
+- **Add ability to follow hashtags** ([Gargron](https://github.com/mastodon/mastodon/pull/18809), [Gargron](https://github.com/mastodon/mastodon/pull/18862), [Gargron](https://github.com/mastodon/mastodon/pull/19472), [noellabo](https://github.com/mastodon/mastodon/pull/18924))
+- Add ability to filter individual posts ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/18945))
+- **Add ability to translate posts** ([Gargron](https://github.com/mastodon/mastodon/pull/19218), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/19433), [Gargron](https://github.com/mastodon/mastodon/pull/19453), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/19434), [Gargron](https://github.com/mastodon/mastodon/pull/19388), [ykzts](https://github.com/mastodon/mastodon/pull/19244), [Gargron](https://github.com/mastodon/mastodon/pull/19245))
+- Add featured tags to web UI ([noellabo](https://github.com/mastodon/mastodon/pull/19408), [noellabo](https://github.com/mastodon/mastodon/pull/19380), [noellabo](https://github.com/mastodon/mastodon/pull/19358), [noellabo](https://github.com/mastodon/mastodon/pull/19409), [Gargron](https://github.com/mastodon/mastodon/pull/19382), [ykzts](https://github.com/mastodon/mastodon/pull/19418), [noellabo](https://github.com/mastodon/mastodon/pull/19403), [noellabo](https://github.com/mastodon/mastodon/pull/19404), [Gargron](https://github.com/mastodon/mastodon/pull/19398))
+- **Add support for language preferences for trending statuses and links** ([Gargron](https://github.com/mastodon/mastodon/pull/18288), [Gargron](https://github.com/mastodon/mastodon/pull/19349), [ykzts](https://github.com/mastodon/mastodon/pull/19335))
+  - Previously, you could only see trends in your current language
+  - For less popular languages, that meant empty trends
+  - Now, trends in your preferred languages' are shown on top, with others beneath
+- Add server rules to sign-up flow ([Gargron](https://github.com/mastodon/mastodon/pull/19296))
+- Add privacy icons to report modal in web UI ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/19190))
+- Add `noopener` to links to remote profiles in web UI ([shleeable](https://github.com/mastodon/mastodon/pull/19014))
+- Add warning for sensitive audio posts in web UI ([rgroothuijsen](https://github.com/mastodon/mastodon/pull/17885))
+- Add language attribute to posts in web UI ([tribela](https://github.com/mastodon/mastodon/pull/18544))
+- Add meta tag for official iOS app ([Gargron](https://github.com/mastodon/mastodon/pull/16599))
+- Add support for uploading WebP files ([Saiv46](https://github.com/mastodon/mastodon/pull/18506))
+- Add support for uploading `audio/vnd.wave` files ([tribela](https://github.com/mastodon/mastodon/pull/18737))
+- Add more debug information when processing remote accounts ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/15605), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/19209))
+- **Add retention policy for cached content and media** ([Gargron](https://github.com/mastodon/mastodon/pull/19232), [zunda](https://github.com/mastodon/mastodon/pull/19478), [Gargron](https://github.com/mastodon/mastodon/pull/19458), [Gargron](https://github.com/mastodon/mastodon/pull/19248))
+  - Set for how long remote posts or media should be cached on your server
+  - Hands-off alternative to `tootctl` commands
+- **Add customizable user roles** ([Gargron](https://github.com/mastodon/mastodon/pull/18641), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/18812), [Gargron](https://github.com/mastodon/mastodon/pull/19040), [tribela](https://github.com/mastodon/mastodon/pull/18825), [tribela](https://github.com/mastodon/mastodon/pull/18826), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/18776), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/18777), [unextro](https://github.com/mastodon/mastodon/pull/18786), [tribela](https://github.com/mastodon/mastodon/pull/18824), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/19436))
+  - Previously, there were 3 hard-coded roles, user, moderator, and admin
+  - Create your own roles and decide which permissions they should have
+- Add notifications for new reports ([Gargron](https://github.com/mastodon/mastodon/pull/18697), [Gargron](https://github.com/mastodon/mastodon/pull/19475))
+- Add ability to select all accounts matching search for batch actions in admin UI ([Gargron](https://github.com/mastodon/mastodon/pull/19053), [Gargron](https://github.com/mastodon/mastodon/pull/19054))
+- Add ability to view previous edits of a status in admin UI ([Gargron](https://github.com/mastodon/mastodon/pull/19462))
+- Add ability to block sign-ups from IP ([Gargron](https://github.com/mastodon/mastodon/pull/19037))
+- **Add webhooks to admin UI** ([Gargron](https://github.com/mastodon/mastodon/pull/18510))
+- Add admin API for managing domain allows ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/18668))
+- Add admin API for managing domain blocks ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/18247))
+- Add admin API for managing e-mail domain blocks ([Gargron](https://github.com/mastodon/mastodon/pull/19066))
+- Add admin API for managing canonical e-mail blocks ([Gargron](https://github.com/mastodon/mastodon/pull/19067))
+- Add admin API for managing IP blocks ([Gargron](https://github.com/mastodon/mastodon/pull/19065))
+- Add `services` and `metadata` to the NodeInfo endpoint ([MFTabriz](https://github.com/mastodon/mastodon/pull/18563))
+- Add `--remove-role` option to `tootctl accounts modify` ([Gargron](https://github.com/mastodon/mastodon/pull/19477))
+- Add `--days` option to `tootctl media refresh` ([tribela](https://github.com/mastodon/mastodon/pull/18425))
+- Add `EMAIL_DOMAIN_LISTS_APPLY_AFTER_CONFIRMATION` environment variable ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/18642))
+- Add `IP_RETENTION_PERIOD` and `SESSION_RETENTION_PERIOD` environment variables ([kescherCode](https://github.com/mastodon/mastodon/pull/18757))
+- Add `http_hidden_proxy` environment variable ([tribela](https://github.com/mastodon/mastodon/pull/18427))
+
+### Changed
+
+- **Change brand color and logotypes** ([Gargron](https://github.com/mastodon/mastodon/pull/18592), [Gargron](https://github.com/mastodon/mastodon/pull/18639), [Gargron](https://github.com/mastodon/mastodon/pull/18691), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/18634), [Gargron](https://github.com/mastodon/mastodon/pull/19254), [mayaeh](https://github.com/mastodon/mastodon/pull/18710))
+- **Change post editing to be enabled in web UI** ([Gargron](https://github.com/mastodon/mastodon/pull/19103))
+- **Change web UI to work for logged-out users** ([Gargron](https://github.com/mastodon/mastodon/pull/18961), [Gargron](https://github.com/mastodon/mastodon/pull/19250), [Gargron](https://github.com/mastodon/mastodon/pull/19294), [Gargron](https://github.com/mastodon/mastodon/pull/19306), [Gargron](https://github.com/mastodon/mastodon/pull/19315), [ykzts](https://github.com/mastodon/mastodon/pull/19322), [Gargron](https://github.com/mastodon/mastodon/pull/19412), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/19437), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/19415), [Gargron](https://github.com/mastodon/mastodon/pull/19348), [Gargron](https://github.com/mastodon/mastodon/pull/19295), [Gargron](https://github.com/mastodon/mastodon/pull/19422), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/19414), [Gargron](https://github.com/mastodon/mastodon/pull/19319), [Gargron](https://github.com/mastodon/mastodon/pull/19345), [Gargron](https://github.com/mastodon/mastodon/pull/19310), [Gargron](https://github.com/mastodon/mastodon/pull/19301), [Gargron](https://github.com/mastodon/mastodon/pull/19423), [ykzts](https://github.com/mastodon/mastodon/pull/19471), [ykzts](https://github.com/mastodon/mastodon/pull/19333), [ykzts](https://github.com/mastodon/mastodon/pull/19337), [ykzts](https://github.com/mastodon/mastodon/pull/19272), [ykzts](https://github.com/mastodon/mastodon/pull/19468), [Gargron](https://github.com/mastodon/mastodon/pull/19466), [Gargron](https://github.com/mastodon/mastodon/pull/19457), [Gargron](https://github.com/mastodon/mastodon/pull/19426), [Gargron](https://github.com/mastodon/mastodon/pull/19427), [Gargron](https://github.com/mastodon/mastodon/pull/19421), [Gargron](https://github.com/mastodon/mastodon/pull/19417), [Gargron](https://github.com/mastodon/mastodon/pull/19413), [Gargron](https://github.com/mastodon/mastodon/pull/19397), [Gargron](https://github.com/mastodon/mastodon/pull/19387), [Gargron](https://github.com/mastodon/mastodon/pull/19396), [Gargron](https://github.com/mastodon/mastodon/pull/19385), [ykzts](https://github.com/mastodon/mastodon/pull/19334), [ykzts](https://github.com/mastodon/mastodon/pull/19329), [Gargron](https://github.com/mastodon/mastodon/pull/19324), [Gargron](https://github.com/mastodon/mastodon/pull/19318), [Gargron](https://github.com/mastodon/mastodon/pull/19316), [Gargron](https://github.com/mastodon/mastodon/pull/19263), [trwnh](https://github.com/mastodon/mastodon/pull/19305), [ykzts](https://github.com/mastodon/mastodon/pull/19273))
+  - The web app can now be accessed without being logged in
+  - No more `/web` prefix on web app paths
+  - Profiles, posts, and other public pages now use the same interface for logged in and logged out users
+  - The web app displays a server information banner
+  - Pop-up windows for remote interaction have been replaced with a modal window
+  - No need to type in your username for remote interaction, copy-paste-to-search method explained
+  - Various hints throughout the app explain what the different timelines are
+  - New about page design
+  - New privacy policy page design shows when the policy was last updated
+  - All sections of the web app now have appropriate window titles
+  - The layout of the interface has been streamlined between different screen sizes
+  - Posts now use more horizontal space
+- Change label of publish button to be "Publish" again in web UI ([Gargron](https://github.com/mastodon/mastodon/pull/18583))
+- Change language to be carried over on reply in web UI ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/18557))
+- Change "Unfollow" to "Cancel follow request" when request still pending in web UI ([prplecake](https://github.com/mastodon/mastodon/pull/19363))
+- **Change post filtering system** ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/18058), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/19050), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/18894), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/19051), [noellabo](https://github.com/mastodon/mastodon/pull/18923), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/18956), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/18744))
+  - Filtered keywords and phrases can now be grouped into named categories
+  - Filtered posts show which exact filter was hit
+  - Individual posts can be added to a filter
+  - You can peek inside filtered posts anyway
+- Change path of privacy policy page from `/terms` to `/privacy-policy` ([Gargron](https://github.com/mastodon/mastodon/pull/19249))
+- Change how hashtags are normalized ([Gargron](https://github.com/mastodon/mastodon/pull/18795), [Gargron](https://github.com/mastodon/mastodon/pull/18863), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/18854))
+- Change public timelines to be filtered by current locale by default ([Gargron](https://github.com/mastodon/mastodon/pull/19291))
+- Change settings area to be separated into categories in admin UI ([Gargron](https://github.com/mastodon/mastodon/pull/19407))
+- Change "No accounts selected" errors to use the appropriate noun in admin UI ([prplecake](https://github.com/mastodon/mastodon/pull/19356))
+- Change e-mail domain blocks to match subdomains of blocked domains ([Gargron](https://github.com/mastodon/mastodon/pull/18979))
+- Change custom emoji file size limit from 50 KB to 256 KB ([Gargron](https://github.com/mastodon/mastodon/pull/18788))
+- Change "Allow trends without prior review" setting to also work for trending posts ([Gargron](https://github.com/mastodon/mastodon/pull/17977))
+- Change search API to be accessible without being logged in ([Gargron](https://github.com/mastodon/mastodon/pull/18963), [Gargron](https://github.com/mastodon/mastodon/pull/19326))
+- Change following and followers API to be accessible without being logged in ([Gargron](https://github.com/mastodon/mastodon/pull/18964))
+- Change Helm configuration ([deepy](https://github.com/mastodon/mastodon/pull/18997), [jgsmith](https://github.com/mastodon/mastodon/pull/18415), [deepy](https://github.com/mastodon/mastodon/pull/18941))
+
+### Removed
+
+- Remove setting that disables account deletes ([Gargron](https://github.com/mastodon/mastodon/pull/17683))
+- Remove digest e-mails ([Gargron](https://github.com/mastodon/mastodon/pull/17985))
+- Remove unnecessary sections from welcome e-mail ([Gargron](https://github.com/mastodon/mastodon/pull/19299))
+- Remove item titles from RSS feeds ([Gargron](https://github.com/mastodon/mastodon/pull/18640))
+- Remove volume number from hashtags in web UI ([Gargron](https://github.com/mastodon/mastodon/pull/19253))
+- Remove Nanobox configuration ([tonyjiang](https://github.com/mastodon/mastodon/pull/17881))
+
+### Fixed
+
+- Fix OCR not working due to Content Security Policy in web UI ([prplecake](https://github.com/mastodon/mastodon/pull/18817))
+- Fix `nofollow` rel being removed in web UI ([Gargron](https://github.com/mastodon/mastodon/pull/19455))
+- Fix language dropdown causing zoom on mobile devices in web UI ([Gargron](https://github.com/mastodon/mastodon/pull/19428))
+- Fix button to dismiss suggestions not showing up in search results in web UI ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/19325))
+- Fix language dropdown sometimes not appearing in web UI ([Gargron](https://github.com/mastodon/mastodon/pull/19246))
+- Fix quickly switching notification filters resulting in empty or incorrect list in web UI ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/19052), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/18960))
+- Fix media modal link button in web UI ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/18877))
+- Fix error upon successful account migration ([Gargron](https://github.com/mastodon/mastodon/pull/19386))
+- Fix negatives values in search index causing queries to fail ([Gargron](https://github.com/mastodon/mastodon/pull/19464), [Gargron](https://github.com/mastodon/mastodon/pull/19481))
+- Fix error when searching for invalid URL ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/18580))
+- Fix IP blocks not having a unique index ([Gargron](https://github.com/mastodon/mastodon/pull/19456))
+- Fix remote account in contact account setting not being used ([Gargron](https://github.com/mastodon/mastodon/pull/19351))
+- Fix swallowing mentions of unconfirmed/unapproved users ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/19191))
+- Fix incorrect and slow cache invalidation when blocking domain and removing media attachments ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/19062))
+- Fix HTTPs redirect behaviour when running as I2P service ([gi-yt](https://github.com/mastodon/mastodon/pull/18929))
+- Fix deleted pinned posts potentially counting towards the pinned posts limit ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/19005))
+- Fix compatibility with OpenSSL 3.0 ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/18449))
+- Fix error when a remote report includes a private post the server has no access to ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/18760))
+- Fix suspicious sign-in mails never being sent ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/18599))
+- Fix fallback locale when somehow user's locale is an empty string ([tribela](https://github.com/mastodon/mastodon/pull/18543))
+- Fix avatar/header not being deleted locally when deleted on remote account ([tribela](https://github.com/mastodon/mastodon/pull/18973))
+- Fix missing `,` in Blurhash validation ([noellabo](https://github.com/mastodon/mastodon/pull/18660))
+- Fix order by most recent not working for relationships page in admin UI ([tribela](https://github.com/mastodon/mastodon/pull/18996))
+- Fix uncaught error when invalid date is supplied to API ([Gargron](https://github.com/mastodon/mastodon/pull/19480))
+- Fix REST API sometimes returning HTML on error ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/19135))
+- Fix ambiguous column names in `tootctl media refresh` ([tribela](https://github.com/mastodon/mastodon/pull/19206))
+- Fix ambiguous column names in `tootctl search deploy` ([mashirozx](https://github.com/mastodon/mastodon/pull/18993))
+- Fix `CDN_HOST` not being used in some asset URLs ([tribela](https://github.com/mastodon/mastodon/pull/18662))
+- Fix `CAS_DISPLAY_NAME`, `SAML_DISPLAY_NAME` and `OIDC_DISPLAY_NAME` being ignored ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/18568))
+- Fix various typos in comments throughout the codebase ([luzpaz](https://github.com/mastodon/mastodon/pull/18604))
+
 ## [3.5.3] - 2022-05-26
 ### Added
 
@@ -75,7 +201,7 @@ All notable changes to this project will be documented in this file.
 - Remove IP matching from e-mail domain blocks ([Gargron](https://github.com/mastodon/mastodon/pull/18190))
   - The IPs of the blocked e-mail domain or its MX records are no longer checked
   - Previously it was too easy to block e-mail providers by mistake
-  
+
 ## Fixed
 
 - Fix compatibility with Friendica's pinned posts ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/18254), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/18260))
diff --git a/lib/mastodon/version.rb b/lib/mastodon/version.rb
index 8ed955aa0..179490098 100644
--- a/lib/mastodon/version.rb
+++ b/lib/mastodon/version.rb
@@ -5,19 +5,19 @@ module Mastodon
     module_function
 
     def major
-      3
+      4
     end
 
     def minor
-      5
+      0
     end
 
     def patch
-      3
+      0
     end
 
     def flags
-      ''
+      'rc1'
     end
 
     def suffix