- Fix race condition when accessing database via templates
- Improve security of account login session cookie
- Support multiple account login sessions
- Switch from standard library regular expression engine to regexp2
- Support randomly coloring identifiers
- Add posts per hour to stats.json
- Support stickying and locking threads while posting
- Support deleting attachments from posts
- Support configuring management panel access key
- Redirect to board index when 'nonoko' is entered in email field
- Add Performance page to management panel
- Track and record highest connection count
- Support stripping metadata from attachments
- Support stripping original file names from attachments
- Fix including version information in binary
- Refresh available disk space every 5 minutes when full or nearly full