diff --git a/index.d.ts b/index.d.ts
index 6cd2a5d39..2d6b9c406 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -150,6 +150,7 @@ declare namespace Eris {
 
   // Invite
   type InviteTargetTypes = Constants["InviteTargetTypes"][keyof Constants["InviteTargetTypes"]];
+  type InviteTypes = Constants["InviteTypes"][keyof Constants["InviteTypes"]];
 
   // Message
   type ActionRowComponents = Button | SelectMenu;
@@ -2353,8 +2354,12 @@ declare namespace Eris {
     getGuildWidget(guildID: string): Promise<WidgetData>;
     getGuildWidgetImageURL(guildID: string, style?: GuildWidgetStyles): string;
     getGuildWidgetSettings(guildID: string): Promise<Widget>;
+    /** @deprecated */
     getInvite(inviteID: string, withCounts?: false, withExpiration?: boolean, guildScheduledEventID?: string): Promise<Invite<"withoutCount">>;
+    /** @deprecated */
     getInvite(inviteID: string, withCounts: true, withExpiration?: boolean, guildScheduledEventID?: string): Promise<Invite<"withCount">>;
+    getInvite(inviteID: string, withCounts?: false, guildScheduledEventID?: string): Promise<Invite<"withoutCount">>;
+    getInvite(inviteID: string, withCounts: true, guildScheduledEventID?: string): Promise<Invite<"withCount">>;
     getJoinedPrivateArchivedThreads(channelID: string, options?: GetArchivedThreadsOptions): Promise<ListedChannelThreads<PrivateThreadChannel>>;
     getMessage(channelID: string, messageID: string): Promise<Message>;
     getMessageReaction(channelID: string, messageID: string, reaction: string, options?: GetMessageReactionOptions): Promise<User[]>;
@@ -3046,6 +3051,7 @@ declare namespace Eris {
     // @ts-ignore: Property is only not null when invite metadata is supplied
     createdAt: CT extends "withMetadata" ? number : null;
     expiresAt?: CT extends "withCount" ? number | null : null;
+    flags?: number;
     guild: CT extends "withMetadata"
       ? Guild // Invite with Metadata always has guild prop
       : CH extends Extract<InviteChannel, GroupChannel> // Invite without Metadata
@@ -3062,6 +3068,7 @@ declare namespace Eris {
     /** @deprecated */
     stageInstance: CH extends StageChannel ? InviteStageInstance : null;
     temporary: CT extends "withMetadata" ? boolean : null;
+    type: InviteTypes;
     uses: CT extends "withMetadata" ? number : null;
     constructor(data: BaseData, client: Client);
     delete(reason?: string): Promise<void>;
diff --git a/lib/Client.js b/lib/Client.js
index 97f9ea634..d8698938d 100644
--- a/lib/Client.js
+++ b/lib/Client.js
@@ -3019,14 +3019,18 @@ class Client extends EventEmitter {
    * Get info on an invite
    * @arg {String} inviteID The ID of the invite
    * @arg {Boolean} [withCounts] Whether to fetch additional invite info or not (approximate member counts, approximate presences, channel counts, etc.)
-   * @arg {Boolean} [withExpiration] Whether to fetch the expiration time or not
+   * @arg {Boolean} [withExpiration] [DEPRECATED] Whether to fetch the expiration time or not. This is deprecated because Discord will now always return the expiration date
    * @arg {String} [guildScheduledEventID] The guild scheduled event to include with the invite
    * @returns {Promise<Invite>}
    */
-  getInvite(inviteID, withCounts, withExpiration, guildScheduledEventID) {
+  getInvite(inviteID, withCounts, _withExpiration, guildScheduledEventID) {
+    if (typeof _withExpiration === "string") {
+      guildScheduledEventID = _withExpiration;
+    } else if (typeof _withExpiration === "boolean") {
+      emitDeprecation("GET_INVITE_WITH_EXPIRATION");
+    }
     return this.requestHandler.request("GET", Endpoints.INVITE(inviteID), true, {
       with_counts: withCounts,
-      with_expiration: withExpiration,
       guild_scheduled_event_id: guildScheduledEventID,
     }).then((invite) => new Invite(invite, this));
   }
diff --git a/lib/Constants.d.ts b/lib/Constants.d.ts
index 402157741..75dcf237e 100644
--- a/lib/Constants.d.ts
+++ b/lib/Constants.d.ts
@@ -235,6 +235,7 @@ export default interface Constants {
     "DEVELOPER_SUPPORT_SERVER",
     "DISCOVERABLE",
     "FEATURABLE",
+    "GUESTS_ENABLED",
     "INVITES_DISABLED",
     "INVITE_SPLASH",
     "MEMBER_VERIFICATION_GATE_ENABLED",
@@ -357,10 +358,18 @@ export default interface Constants {
     APPLICATION_COMMAND_AUTOCOMPLETE: 4;
     MODAL_SUBMIT:                     5;
   };
+  InviteFlags: {
+    IS_GUEST_INVITE: 1;
+  };
   InviteTargetTypes: {
     STREAM:               1;
     EMBEDDED_APPLICATION: 2;
   };
+  InviteTypes: {
+    GUILD:    0;
+    GROUP_DM: 1;
+    FRIEND:   2;
+  };
   Locales: {
     BULGARIAN:            "bg";
     CZECH:                "cs";
diff --git a/lib/Constants.js b/lib/Constants.js
index c0de89331..fa55bb860 100644
--- a/lib/Constants.js
+++ b/lib/Constants.js
@@ -275,6 +275,7 @@ module.exports.GuildFeatures = [
   "DEVELOPER_SUPPORT_SERVER",
   "DISCOVERABLE",
   "FEATURABLE",
+  "GUESTS_ENABLED",
   "INVITE_SPLASH",
   "INVITES_DISABLED",
   "MEMBER_VERIFICATION_GATE_ENABLED",
@@ -436,11 +437,21 @@ module.exports.InteractionTypes = {
   MODAL_SUBMIT:                     5,
 };
 
+module.exports.InviteFlags = {
+  IS_GUEST_INVITE: 1 << 0,
+};
+
 module.exports.InviteTargetTypes = {
   STREAM:               1,
   EMBEDDED_APPLICATION: 2,
 };
 
+module.exports.InviteTypes = {
+  GUILD:    0,
+  GROUP_DM: 1,
+  FRIEND:   2,
+};
+
 module.exports.Locales = {
   BULGARIAN:            "bg",
   CZECH:                "cs",
diff --git a/lib/structures/Invite.js b/lib/structures/Invite.js
index d9b82763f..92da320b7 100644
--- a/lib/structures/Invite.js
+++ b/lib/structures/Invite.js
@@ -14,6 +14,7 @@ const Member = require("./Member");
  * @prop {String} code The invite code
  * @prop {Number?} createdAt Timestamp of invite creation
  * @prop {Number?} expiresAt Timestamp of invite expiration
+ * @prop {Number?} flags The invite flags. For now, if there are any invite flags, they will only be `1` (meaning this invite is a guest invite for a voice channel)
  * @prop {(Guild | Object)?} guild Info on the invite guild. If the guild is not cached, this will be an object with an `id` key. No other property is guaranteed.
  * @prop {User?} inviter The invite creator
  * @prop {Number?} maxAge How long the invite lasts in seconds
@@ -25,6 +26,7 @@ const Member = require("./Member");
  * @prop {Number?} targetType The type of the target application
  * @prop {User?} targetUser The user whose stream is displayed for the invite (voice channel only)
  * @prop {Boolean?} temporary Whether the invite grants temporary membership or not
+ * @prop {Number} type The type of invite. See [the official Discord API documentation entry](https://discord.com/developers/docs/resources/invite#invite-object-invite-types) for valid types
  * @prop {Number?} uses The number of invite uses
  */
 class Invite extends Base {
@@ -71,6 +73,12 @@ class Invite extends Base {
     } else {
       this.stageInstance = null;
     }
+    if (data.flags !== undefined) {
+      this.flags = data.flags;
+    }
+    if (data.type !== undefined) {
+      this.type = data.type;
+    }
     this.targetApplicationID = data.target_application !== undefined ? data.target_application.id : null;
     this.targetType = data.target_type !== undefined ? data.target_type : null;
     this.targetUser = data.target_user !== undefined ? this._client.users.update(data.target_user, this._client) : null;
@@ -102,6 +110,7 @@ class Invite extends Base {
       "channel",
       "code",
       "createdAt",
+      "flags",
       "guild",
       "maxAge",
       "maxUses",
diff --git a/lib/structures/Member.js b/lib/structures/Member.js
index 9f87aaac7..a0957545b 100644
--- a/lib/structures/Member.js
+++ b/lib/structures/Member.js
@@ -34,7 +34,7 @@ const VoiceState = require("./VoiceState");
  * @prop {String?} globalName The user's display name, if it is set. For bots, this is the application name
  * @prop {Guild} guild The guild the member is in
  * @prop {String} id The ID of the member
- * @prop {Number?} joinedAt Timestamp of when the member joined the guild
+ * @prop {Number?} joinedAt Timestamp of when the member joined the guild (Note: Member objects retrieved from `Client#voiceStateUpdate` events will have `joinedAt` set as `null` if the member was invited as a guest)
  * @prop {String} mention A string that mentions the member
  * @prop {String?} nick The server nickname of the member
  * @prop {Boolean?} pending Whether the member has passed the guild's Membership Screening requirements
diff --git a/lib/util/emitDeprecation.js b/lib/util/emitDeprecation.js
index 66e682511..c90f9538c 100644
--- a/lib/util/emitDeprecation.js
+++ b/lib/util/emitDeprecation.js
@@ -4,6 +4,7 @@ const warningMessages = {
   DEFAULT_PERMISSION: "Passing a defaultPermission for application commands is deprecated. Use defaultMemberPermissions instead.",
   DELETE_MESSAGE_DAYS: "Passing the deleteMessageDays parameter to banGuildMember is deprecated. Use an options object with deleteMessageSeconds instead.",
   DM_REACTION_REMOVE: "Passing a userID when using removeMessageReaction() in a DMChannel is deprecated. This behavior is no longer supported by Discord.",
+  GET_INVITE_WITH_EXPIRATION: "Passing withExpiration to getInvite() is deprecated. This is because Discord now always sends an expiration date when fetching an invite.",
   GET_REACTION_BEFORE: "Passing the before parameter to getMessageReaction() is deprecated. Discord no longer supports this parameter.",
   MEMBER_PERMISSION: "Member#permission is deprecated. Use Member#permissions instead.",
   MESSAGE_REFERENCE: "Passing the content.messageReferenceID option to createMessage() is deprecated. Use the content.messageReference option instead.",