v5 mega-issue

[akiraveliara]

This issue tracks the development of version 5 of the library.

For each work item, issues/prs/branches as well as their assignees are listed below.

Other maintainers, feel free to add additional work items as you go.

• Obsoleting CommandsNext and SlashCommands in favor of DSharpPlus.Commands - @OoLunar, Add new extension: DSharpPlus.Commands #1680
• Obsoleting VoiceNext, potentially in favor of @OoLunar's DSharpPlus.VoiceLink
• Obsoleting Lavalink, in favor of Lavalink4NET
• Nullability-annotating the libraries - in progress
• Cleaning up code readability
• Updating Rest
  • modernizing internal infrastructure - @akiraveliara, @Plerx2493, consolidate and improve internal rest infrastructure #1624
  • nullability-annotating the rest client - internals @akiraveliara, @Plerx2493, consolidate and improve internal rest infrastructure #1624, externals required
  • updating rest to the current API spec
• Updating the Gateway - the events part of v5 extensions and events design #1820
• Implementing more reliable and more maintainable caching - first attempt in Cache rework #1647
• Enabling OAuth2 usage
• audit logs - @Plerx2493, Auditlog cleanup and update #1586
• Entity overhaul v5 Entity overhaul #1653
  • correctly representing partial entities
• extensions - v5 extensions and events design #1820
• client initialization - v5 extensions and events design #1820 , @akiraveliara build DiscordClient on top of IOC #1908

[Plerx2493]

Missing gateway events:

• CHANNEL_TOPIC_UPDATE
• VOICE_CHANNEL_STATUS_UPDATE
• GUILD_SOUNDBOARD_SOUND_CREATE
• GUILD_SOUNDBOARD_SOUND_UPDATE
• GUILD_SOUNDBOARD_SOUND_DELETE

Note: those events are not documented by discord yet

[akiraveliara]

missing audit log keys: flags in invite updates - currently undocumented