### Security
- OStatus: eliminate the possibility of a protocol downgrade attack.
- OStatus: prevent following locked accounts, bypassing the approval process.
+– ActivityPub: Do not check if actor is active when deleting a user
### Changed
- **Breaking:** Configuration: A setting to explicitly disable the mailer was added, defaulting to true, if you are using a mailer add `config :pleroma, Pleroma.Emails.Mailer, enabled: true` to your config
- Rich media: Do not crawl private IP ranges
### Added
+- Digest email for inactive users
- Add a generic settings store for frontends / clients to use.
- Explicit addressing option for posting.
- Optional SSH access mode. (Needs `erlang-ssh` package on some distributions).
- Configuration: `notify_email` option
- Configuration: Media proxy `whitelist` option
- Configuration: `report_uri` option
+- Configuration: `email_notifications` option
- Configuration: `limit_to_local_content` option
- Pleroma API: User subscriptions
- Pleroma API: Healthcheck endpoint