Breaking

disable_recipient_thread_close is removed, a new configuration variable recipient_thread_close replaces it which defaults to False.
Truthy and falsy values for binary configuration variables are now interpreted respectfully.
LOG_URL_PREFIX cannot be set to "NONE" to specify no additional path in the future, "/" is the new method.

Added

?sfw, mark a thread as "safe for work", undos ?nsfw.
New config variable, thread_auto_close_silently, when set to a truthy value, no message will be sent when thread is auto-closed.
New configuration variable thread_self_closable_creation_footer — the footer when recipient_thread_close is enabled.
Added a minimalistic version of requirements.txt (named requirements.min.txt) that contains only the absolute minimum of Modmail.
- For users having trouble with pipenv or any other reason.
Multi-step alias, see ?help alias add. Public beta testing, might be unstable.
Misc commands without cogs are now displayed in ?help.
?help works for alias and snippets.
?config help <config-name> shows a help embed for the configuration.
Support setting permissions for sub commands.
Support numbers (1-5) as substitutes for Permission Level REGULAR - OWNER in ?perms sub commands.

thread_auto_close_response has a configurable variable {timeout}.
?snippet is now the default command name instead of ?snippets (?snippets is still usable). This is to make this consistent with ?alias/?aliases.
colorama is no longer a necessity, this is due to some unsupported OS.
Changelog command can now take a version argument to jump straight to specified version.
?plugin enabled results are now sorted alphabetically.
?plugin registry results are now sorted alphabetically, helps user find plugins more easily.
?plugin registry page-number plugin registry can specify a page number for quick access.
A reworked interface for ?snippet and ?alias.
- Add an ?snippet raw <name> command for viewing the raw content of a snippet (escaped markdown).
- Add an ?alias raw <name> command for viewing the raw content of a alias (escaped markdown).
The placeholder channel for the streaming status changed to https://www.twitch.tv/discordmodmail/.
Removed unclear rm alias for some remove commands.
Paginate ?config options.
All users configured with a permission level greater than REGULAR has access to the main Modmail category.
- Category overrides also changes when a level is removed or added to a user or role.
@everyone is now accepted for ?perms add.

?notify no longer carries over to the next thread.
discord.NotFound errors for on_raw_reaction_add.
mod_typing ~~and user_typing~~ (user_typing is now by-design to show) will no longer show when user is blocked.
Better ?block usage message.
Resolves errors when message was sent by mods after thread is closed somehow.
Recipient join/leave server messages are limited to only the guild set by GUILD_ID.
When creating snippets and aliases, it now checks if another snippets/aliases with the same name exists.
Was looking for config.json in the wrong directory.

Removed supporting code for GitHub interaction.
All default config values moved to core/config.py.
config.cache is no longer accessible, use config['key'] for getting, config['key'] = value for setting, config.remove('key') for removing.
Dynamic attribute for configs are removed, must use config['key'] or config.get('key').
Removed helper functions info() and error() for formatting logging, it's formatted automatically now.
Bumped discord.py version to 1.2.3.
Use discord tasks for metadata loop.
More debug based logging.
Reduce redundancies in ?perms sub commands.
paginator been split into EmbedPaginatorSession and MessagePaginatorSession, both subclassing PaginatorSession.