Contributions to this release

Docs

[Docs] Add awaits and missing imports in usage examples (#2860)
[Docs] Fixes the docs for commands.Command.error (#2760)
Added a warning about modifying the PATH variable (#2791)
[Readme] Update RTD and d.py URLs (#2771)
[Docs] Wrong code example in Value.__call__ (#2780)

Enhancements

[CI] Improve automated checks (#2702)
[Audio] Remove blacklisted architectures (#2755)
[Commands] Added optional default_unit to the TimedeltaConverter (#2753)
[V3 Core] More features for the bot invite URL (#1847)
[V3 Core] Add checks to [p]command (#2770)
[ModLog] Phrase information about reason command better (#2777)
[Audio] Improve Lavalink download/connection exception handling (#2764)
[Audio] Change Lavalink.jar version checking (#2785)
[Core] Multiple mod admin roles (#2783)
[Audio] Queue & misc cleanup (#2784)
[Mod] add role mentions to userinfo and reverse role sorting (#2759)
[ModLog] Use custom scopes for ModLog Config (#2766)
[Audio] No capitalization needed (#2801)
[Core utils] Modify chmod use in safe_delete (#2701)
[Trivia] Changes from v2 trivia PRs for v3 (#2823)
Add uvloop as Posix+CPython dependency and tweak new Make recipes (#2819)
Added some periods to some strings (#2852)
[Audio] Update equalizer permissions (#2813)
[Permissions] Send help on missing argument (#2865)
[i18n] Update translation catalogs (#2867)

New Features

[Audio] Add equalizer (#2787)
[Audio] Add [p]summon (#2786)
[Bank API] Add cost decorator (#2761)
[Context] Adds react_quietly method to context (#2834)

Fixes

[Core] [TempFix] Pass exceptions on Cog Load to user.(#2754)
[Audio] Add bot permission checks (#2756)
[Audio] Fix OSErrors on mixed-filesystem environments (#2765)
Revert custom Bot.process_commands behaviour (#2768)
[Core] Fix DictConverterer error handling format (#2776)
[Audio] Fix for escape character prefixes (#2789)
[Help] Prevent spamming when a user blocks the bot (#2790)
[Admin] Convert set to list before updating config (sets are not JSON serializable) (#2792)
[Filter] Make name filtering behavior consistent (#2794)
Various Config and Mongo Driver fixes (#2795)
[ModLog] Fix get_all_casetypes() (#2807)
[Audio] Move summon dj role check (#2799)
Kill Pipfile, update dependencies, and add dep bumping tools (#2806)
Kill JsonIO and fix JSON driver caching issues (#2796)
[Filter] cache invalidation fix (#2810)
[Audio] Fix config set in shuffle and repeat commands (#2812)
Fixed broken link in set color help message (#2803)
[Core] Fix user output on cog load/reload (#2767)
[Tests] Ignore pylint's ImportErrors for distro package on non-linux systems (#2830)
[Downloader/Core] RepoManager: don't load repos in __init__ (#2929)
[Audio] _enqueue_tracks clarification/fix (#2822)
[Audio] Catch unhandled internal folder types (#2824)
[Mongo] Escape identifiers before extracting value (#2832)
[Audio] Check for player when not connected (#2842)
[Core] Fixed [p] not being replaced in non-embedded help output (#2846)
[ModLog] Prevent duplicate kwarg error (#2848)
[Core] Cog load fixes (#2854)
[Modlog] Fix get_case for missing cases (#2858)
[Core] Make Requires.verify() wait until rules are loaded (#2857)
[Permissions] Fix Requires.ready_event.set() on subcommands (#2868)
command translator quick fix (#2870)