-`load()` method on `ApiController` extender to allow eager loading of relations (https://github.com/flarum/core/pull/2724)
- Installation supports enabling a set of extensions (https://github.com/flarum/core/pull/2757)
- RequestUtil helper class added to abstract the logic of the actor, session, locale and route name from the request (https://github.com/flarum/core/pull/2449)
- Code scanning action with GitHub CodeQL (https://github.com/flarum/core/pull/2744)
- The Formatter extender now has an `unparse` method to allow extensions to hook into the unparsing of content (https://github.com/flarum/core/pull/2780)
- A Filesystem extender allows direct modification and addition of filesystem disks (https://github.com/flarum/core/pull/2732)
- A slug driver based on the User ID was introduced (https://github.com/flarum/core/pull/2787)
- An extensible users list was added to the admin area (https://github.com/flarum/core/pull/2626)
- Headers hardened by adding Referer Policy, Xss Protection and Content type (https://github.com/flarum/core/pull/2721)
- Moved `insertText` and `styleSelectedText` from markdown to core (https://github.com/flarum/core/pull/2826)
- A squashed database schema install dump to speed up new installs (https://github.com/flarum/core/pull/2842)
- Pagination in the canonical URL for discussion pages (https://github.com/flarum/core/pull/2853)
- PaginatedListState for the DiscussionList and to support paginated lists in the frontend (https://github.com/flarum/core/pull/2781)
- Introduce the new webpack config and flarum-tsconfig for typehinting (https://github.com/flarum/core/pull/2856)
### Changed
- Now tracking bundle sizes to keep an eye on web performance (https://github.com/flarum/core/pull/2695)
- Eager load relations on ListPostsController to improve performance (https://github.com/flarum/core/pull/2717)
- Replace classList with clsx library (https://github.com/flarum/core/pull/2760)
- Replaced the javascript based loading spinner with a pure CSS version (https://github.com/flarum/core/pull/2764)
- Route names now have to be unique (https://github.com/flarum/core/pull/2771)
- ActorReference is now available from the error handler middleware (https://github.com/flarum/core/pull/2410)
- The `migrations` table now has an Auto Increment ID (https://github.com/flarum/core/pull/2794)
- Assets and avatars are now managed using Laravel filesystem disks (https://github.com/flarum/core/pull/2729)
- Extracted asset publishing (`php flarum assets:publish`) from migrating (https://github.com/flarum/core/pull/2731)
- Assets were compiled in the format `<asset>-<revision>.<js|css>`, this is now `<asset>.<js|css>?v=<revision>` (https://github.com/flarum/core/pull/2805)
- The powered by header can now be configured in the config under `headers` (https://github.com/flarum/core/pull/2777)
- Switched to the ICU format for translation files (https://github.com/flarum/core/pull/2759)
- Allow extend and override to apply to multiple methods in one call
- Notifications dropdown and list refactored (https://github.com/flarum/core/pull/2822)
- Updated validation locale strings based on Laravel 8 changes (https://github.com/flarum/core/pull/2829)
- Caching of permissions is now taken care of centrally, reducing code duplication (https://github.com/flarum/core/pull/2832)
- Replaced lodash-es by throttle-debounce to reduce bundle size (https://github.com/flarum/core/pull/2827)
- Internal API requests are now executed through middleware (https://github.com/flarum/core/pull/2783)
- Permission changes: `viewDiscussions` to `viewForum` and `viewUserList` to `searchUsers` (https://github.com/flarum/core/pull/2854)
### Fixes
- Javascript is shown when editing the title of a discussion (https://github.com/flarum/core/pull/2693)
- Canonical url logic uses request object which causes wrong URL's when a different page is default (https://github.com/flarum/core/pull/2674)
- Dropdown toggle has no aria label (https://github.com/flarum/core/pull/2668)
- Nav drawer is focusable when off-screen on small viewports (https://github.com/flarum/core/pull/2666)
- Search input has no aria-label and no role (https://github.com/flarum/core/pull/2669)
- Code duplication exists between SendConfirmationEmailController and AccountActivationMailer (https://github.com/flarum/core/pull/2493)
- When setting tags as homepage default, visiting a tag will show all posts (https://github.com/flarum/core/pull/2754)
- Locale cache is cleared twice when cache clearing (https://github.com/flarum/core/pull/2738)
- When cache clearing fails an exception can be thrown due to a partial flush (https://github.com/flarum/core/pull/2756)
- Database migrations rely on MyISAM even though the eventual migrated database does not use it (https://github.com/flarum/core/pull/2442)
- Discussion search result is not sorted by relevance by default (https://github.com/flarum/core/pull/2773)
- Split user edit permissions into permissions for editing of user credentials, username, groups and suspending (https://github.com/flarum/core/pull/2620)
- Reduced number of admin extension categories (https://github.com/flarum/core/pull/2604)
- Move search related classes to a dedicated Query namespace (https://github.com/flarum/core/pull/2645)
- Rewrite common helpers into typescript (https://github.com/flarum/core/pull/2541)
-`TextEditor` is moved to the common namespace for use in the admin frontend (https://github.com/flarum/core/pull/2649)
- Update Laravel/Illuminate components to 8 (https://github.com/flarum/core/pull/2576)
- Eager load relations in discussion listing to improve performance (https://github.com/flarum/core/pull/2639)
- Replace `user` gambit with `author` gambit ([612a57c](https://github.com/flarum/core/commit/612a57c4664415a3ea120103483645c32acc6f12))
- Posts page of on user profile loads posts using username instead of id ([30017ee](https://github.com/flarum/core/commit/30017eef09ae9e78640c4e2cacd4909fffa8d775))
- Composer header is hidden on mobile devices (https://github.com/flarum/core/pull/2279)
- Cannot delete a post or discussion of a deleted user (https://github.com/flarum/core/pull/2521)
- DiscussionListPane jumps around not keeping the scroll position (https://github.com/flarum/core/pull/2402)
- Infinite scroll on notifications dropdown broken (https://github.com/flarum/core/pull/2524)
- The show language selector switch remains toggled on ([9347b12](https://github.com/flarum/core/commit/9347b12b47bf4ab97ffb7ca92673604b237c1012))
- Model Visibility extender throws exception on extensions that aren't installed or enabled (https://github.com/flarum/core/pull/2580)
- Extensions are marked as enabled when enabling fails to unmet extension dependencies (https://github.com/flarum/core/pull/2558)
- Routes to admin extension pages without a valid ID break the admin page (https://github.com/flarum/core/pull/2584)
- Disabled fieldset use an incorrect CSS property `disallowed` (https://github.com/flarum/core/pull/2585)
- Scrolling to a post that is already loaded the Load More button shows and does not trigger (https://github.com/flarum/core/pull/2388)
- Opening discussions on some mobile devices require a double tap (https://github.com/flarum/core/pull/2607)
- iOS devices show erratic behavior in the post stream while updating (https://github.com/flarum/core/pull/2548)
- Small mobile screens partially hides the composer when the keyboard is open (https://github.com/flarum/core/pull/2631)
- Clearing cache does not clear the template cache in storage/views (https://github.com/flarum/core/pull/2648)
- Boot errors show critical information (https://github.com/flarum/core/pull/2633)
- List user endpoint discloses last online even if user choose against it (https://github.com/flarum/core/pull/2634)
- Group gambit disclosed hidden groups (https://github.com/flarum/core/pull/2657)
- Search results on small windows not fully visible (https://github.com/flarum/core/pull/2650)
- Composer goes off screen on Safari when starting to type (https://github.com/flarum/core/pull/2660)
- A search that has no results shows the search results dropdown ([b88a7cb](https://github.com/flarum/core/commit/b88a7cb33b56e318f11670e9e2d563aef94db039))
- The composer modal moves around when typing on Safari ([a64c398](https://github.com/flarum/core/commit/a64c39835aba43e831209609f4a9638ae589aa41))
-`Rememberer::remember` argument `$token` should receive an instance of `RememberAccessToken` with `AccessToken` being deprecated (https://github.com/flarum/core/pull/2651)
- Floodgate moved to middleware and extender added (https://github.com/flarum/core/pull/2170).
- DRY up image uploading logic (https://github.com/flarum/core/pull/2477).
- Process isolation on testing (https://github.com/flarum/core/commit/984f751c718c89501cc09857bc271efa2c7eea8c).
- Forum and admin javascript exports namespaced (https://github.com/flarum/core/pull/2488).
### Fixed
- Web updater does not take into account subfolder installations (https://github.com/flarum/core/pull/2426).
- Callables handling in extenders failed (https://github.com/flarum/core/pull/2423).
- Scrolling on mobile from PostSteam changes didn't work correctly (https://github.com/flarum/core/pull/2385).
- Side pane covers part of the discussion page due to `app.discussions` being empty (https://github.com/flarum/core/commit/102e76b084bf47fdfb4c73f95e1fbb322537f7aa).
- Change email modal keeps showing the previous error message even on success (https://github.com/flarum/core/pull/2467).
- Comment count not updated when discussions are deleted (https://github.com/flarum/core/pull/2472).
-`goToIndex` in PostStream does not trigger an xhr to retrieve new data (https://github.com/flarum/core/commit/09e2736cbcc267594b660beabbd001d9030f9880).
- On refresh the post number is reduced by one (https://github.com/flarum/core/pull/2476).
- Queue worker would instantiate a new Queue factory, not the bound one (https://github.com/flarum/core/pull/2481).
- Header accidentally has a border bottom (https://github.com/flarum/core/pull/2489).
- Namespace mentioned in docblock is incorrect (https://github.com/flarum/core/pull/2494).
- Expose supported mail drivers in IoC container ([208bad3](https://github.com/flarum/core/commit/208bad393f37bfdb76007afcddfa4b7451563e9d))
- More test for some API endpoints ([1670590](https://github.com/flarum/core/commit/167059027e5a066d618599c90164ef1b5a509148))
- The `Formatter\Rendering` event now receives the HTTP request instance as well ([0ab9fac](https://github.com/flarum/core/commit/0ab9facc4bd59a260575e6fc650793c663e5866a))
- More and better validation in installer UIs
- Check and enforce minimum MariaDB ([7ff9a90](https://github.com/flarum/core/commit/7ff9a90204923293adc520d3c02dc984845d4f9f))
- Revert publication of assets when installation fails ([ed9591c](https://github.com/flarum/core/commit/ed9591c16fb2ea7a4be3387b805d855a53e0a7d5))
- Benefit from Laravel's database reconnection logic in long-running tasks ([e0becd0](https://github.com/flarum/core/commit/e0becd0c7bda939048923c1f86648793feee78d5))
- The "vendor path" (where Composer dependencies can be found) can now be configured ([5e1680c](https://github.com/flarum/core/commit/5e1680c458cd3ba274faeb92de3ac2053789131e))
- Allow per-site extenders to override extension extenders ([ba594de](https://github.com/flarum/core/commit/ba594de13a033480834d53d73f747b05fe9796f8))
- Do not resolve objects from the IoC container (in service providers and extenders) until they are actually used
- Replace event subscribers (that resolve objects from the IoC container) with listeners (that resolve lazily)
- Use custom service provider for Mail component ([ac5e26a](https://github.com/flarum/core/commit/ac5e26a254d89e21bd4c115b6cbd40338e2e4b4b))
- Update to Laravel 5.7, revert custom logic for building database index names
- Refactored installer, extracted Installation class and pipeline for reuse in CLI and web installers ([790d5be](https://github.com/flarum/core/commit/790d5beee5e283178716bc8f9901c758d9e5b6a0))
- Use whitelist for enabling pre-installed extensions during installation ([4585f03](https://github.com/flarum/core/commit/4585f03ee356c92942fbc2ae8c683c651b473954))
- Update minimum MySQL version ([7ff9a90](https://github.com/flarum/core/commit/7ff9a90204923293adc520d3c02dc984845d4f9f))
- Signing up via OAuth providers was broken ([67f9375](https://github.com/flarum/core/commit/67f9375d4745add194ae3249d526197c32fd5461))
- Group badges were overlapping ([16eb1fa](https://github.com/flarum/core/commit/16eb1fa63b6d7b80ec30c24c0e406a2b7ab09934))
- API: Endpoint for uninstalling extensions returned an error ([c761802](https://github.com/flarum/core/commit/c76180290056ddbab67baf5ede814fcedf1dcf14))
- Documentation links in installer were outdated ([b58380e](https://github.com/flarum/core/commit/b58380e224ee54abdade3d0a4cc107ef5c91c9a9))
- Event posts where counted when aggregating user posts ([671fdec](https://github.com/flarum/core/commit/671fdec8d0a092ccceb5d4d5f657d0f4287fc4c7))
- Admins could not reset user passwords ([c67fb2d](https://github.com/flarum/core/commit/c67fb2d4b6a128c71d65dc6703310c0b62f91be2))
- Several down migrations were invalid
- Validation errors on reset password page resulted in HTTP 404 ([4611abe](https://github.com/flarum/core/commit/4611abe5db8b94ca3dc7bf9c447fca7c67358ee3))
-`is:unread` gambit generated an invalid query ([e17bb0b](https://github.com/flarum/core/commit/e17bb0b4331f2c92459292195c6b7db8cde1f9f3))
- Entire forum was breaking when the `custom_less` setting was missing from the database ([bf2c5a5](https://github.com/flarum/core/commit/bf2c5a5564dff3f5ef13efe7a8d69f2617570ce6))
- Dropdown icon was not showing in user card when on user page ([12fdfc9](https://github.com/flarum/core/commit/12fdfc9b544a27f6fe59c82ad6bddd3420cc0181))
- Requests were missing the `original*` attributes, which broke installations in subfolders ([56fde28](https://github.com/flarum/core/commit/56fde28e436f52fee0c03c538f0a6049bc584b53))
- Special characters such as `%` and `_` could return incorrect results ([ee3640e](https://github.com/flarum/core/commit/ee3640e1605ff67fef4b3d5cd0596f14a6ae73c9))
- FontAwesome component package changed paths in version 5.9.0 ([5eb69e1](https://github.com/flarum/core/commit/5eb69e1f59fa73fdfd5badbf41a05a6a040e7426))
- Some server environments had problems accessing the system-wide tmp path for storing JS file maps ([54660eb](https://github.com/flarum/core/commit/54660ebd6311f9ea142f1b573263d0d907400786))
- Content length of posts.content was not migrated to mediumText in 2017 ([590b311](https://github.com/flarum/core/commit/590b3115708bf94a9c7f169d98c6126380c7056e))
- An error occurred when going to the previous route if there was no previous route found ([985b87da](https://github.com/flarum/core/commit/985b87da6c9942c568a1a192e2fdcfde72e030ee))
-`php flarum install --defaults` - this was meant to be used in our old development VM ([44c9109](https://github.com/flarum/core/commit/44c91099cd77138bb5fc29f14fb1e81a9781272d))
- Obsolete `id` attributes in JSON-API responses ([ecc3b5e](https://github.com/flarum/core/commit/ecc3b5e2271f8d9b38d52cd54476d86995dbe32e) and [7a44086](https://github.com/flarum/core/commit/7a44086bf3a0e3ba907dceb13d07ac695eca05ea))
- Ensure InnoDB engine is used for all tables ([fb6b51b](https://github.com/flarum/core/commit/fb6b51b1cfef0af399607fe038603c8240800b2b), [6370f7e](https://github.com/flarum/core/commit/6370f7ecffa9ea7d5fb64d9551400edbc63318db))
- Fix discussion list scroll position not being maintained when hero is not visible ([40dc6ac](https://github.com/flarum/core/commit/40dc6ac604c2a0973356b38217aa8d09352daae5))
