Initial queue support: Infrastructure for offloading long-running tasks (e.g. email sending) to background workers (#1773)
Notifications can now be marked as read without visiting a discussion (#151)
SEO: The discussion list now has a rel="canonical" meta tag, preventing duplicate content (#1134, #1814)
The "Edit User" permission can now be edited in the UI (#1845)
New status message and redirect after user deletion (#1750, #1777)
Errors in Flarum's boot process are now presented with more detailed information (#1607)

Better, more detailed and extensible error handling (#1641, #1843)
Error pages in debug mode now return the same HTTP status codes as in production (#1648)
Tweak HTTP status codes for authentication / authorization errors (#1854)
Already-used links from account activation emails now show a better error message (#1337)

Security vulnerabilities in dependencies
Performance: High CPU usage when scrolling in a discussion (#1222)
Special characters crashed the search (#1498)
Missing declarations for language and text direction in HTML output (#1772)
Private messages were counted in user post counts (#1695)
Extensions could not change the forum's default page (#1819)
API requests authenticated using access tokens needed to provide a CSRF token (#1828)
Accessibility: Screenreaders did not read the "Back to discussion list" link (#1835)

0.1.0-beta.9

New hasPermission() helper method for Group objects (9684fbc)
Expose supported mail drivers in IoC container (208bad3)
More test for some API endpoints (1670590)
The Formatter\Rendering event now receives the HTTP request instance as well (0ab9fac)
More and better validation in installer UIs
Check and enforce minimum MariaDB (7ff9a90)
Revert publication of assets when installation fails (ed9591c)
Benefit from Laravel's database reconnection logic in long-running tasks (e0becd0)
The "vendor path" (where Composer dependencies can be found) can now be configured (5e1680c)

Performance: Actually cache translations on disk (0d16fac)
Allow per-site extenders to override extension extenders (ba594de)
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)
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)
Use whitelist for enabling pre-installed extensions during installation (4585f03)
Update minimum MySQL version (7ff9a90)

Signing up via OAuth providers was broken (67f9375)
Group badges were overlapping (16eb1fa)
API: Endpoint for uninstalling extensions returned an error (c761802)
Documentation links in installer were outdated (b58380e)
Event posts where counted when aggregating user posts (671fdec)
Admins could not reset user passwords (c67fb2d)
Several down migrations were invalid
Validation errors on reset password page resulted in HTTP 404 (4611abe)
is:unread gambit generated an invalid query (e17bb0b)
Entire forum was breaking when the custom_less setting was missing from the database (bf2c5a5)
Dropdown icon was not showing in user card when on user page (12fdfc9)
Requests were missing the original* attributes, which broke installations in subfolders (56fde28)
Special characters such as % and _ could return incorrect results (ee3640e)
FontAwesome component package changed paths in version 5.9.0 (5eb69e1)
Some server environments had problems accessing the system-wide tmp path for storing JS file maps (54660eb)
Content length of posts.content was not migrated to mediumText in 2017 (590b311)
An error occurred when going to the previous route if there was no previous route found (985b87da)

php flarum install --defaults - this was meant to be used in our old development VM (44c9109)
Obsolete id attributes in JSON-API responses (ecc3b5e and 7a44086)

0.1.0-beta.8.1

Fix live output in migrate:reset command (f591585)
Fix search with database prefix (7705a2b)
Fix invalid join time of admin user created by installer (57f73c9)
Ensure InnoDB engine is used for all tables (fb6b51b, 6370f7e)
Fix dropping foreign keys in down migrations (57d5846)
Fix discussion list scroll position not being maintained when hero is not visible (40dc6ac)
Fix empty meta description tag (88e43cc)
Remove empty attributes on <html> tag (796b577)