diff --git a/src/structs/Api.ts b/src/structs/Api.ts
index 0c3e4ec..de9dc6d 100644
--- a/src/structs/Api.ts
+++ b/src/structs/Api.ts
@@ -4,16 +4,17 @@ import { EventEmitter } from "events";
 import { STATUS_CODES } from "http";
 
 import type {
-  APIOptions,
-  Snowflake,
-  UserSource,
-  Project,
-  PartialVote,
-  PaginatedVotes,
   Announcement,
+  AnnouncementType,
+  APIOptions,
   Method,
   MetricsPayload,
+  PaginatedVotes,
+  PartialVote,
+  Project,
   ProjectPayload,
+  Snowflake,
+  UserSource,
 } from "../typings.js";
 
 /** The API version to use */
@@ -198,7 +199,7 @@ export class Api extends EventEmitter {
    * @returns {Promise<void>}
    */
   public async postCommands(commands: APIApplicationCommand[]): Promise<void> {
-    await this._request("POST", "/projects/@me/commands", commands);
+    await this._request("PUT", "/projects/@me/commands", commands);
   }
 
   /**
@@ -222,16 +223,18 @@ export class Api extends EventEmitter {
    *
    * @param {string} title The announcement title. Must be between 3 and 100 characters.
    * @param {string} content The announcement body text. Must be between 10 and 2,000 characters.
+   * @param {AnnouncementType} category The category to publish the announcement under. Defaults to `announcement` when omitted.
    * @returns {Promise<Announcement>} The created announcement.
    */
   public async postAnnouncement(
     title: string,
     content: string,
+    category?: AnnouncementType,
   ): Promise<Announcement> {
     const announcement = await this._request(
       "POST",
       "/projects/@me/announcements",
-      { title, content },
+      { title, content, category },
     );
 
     return {
diff --git a/src/structs/Webhook.ts b/src/structs/Webhook.ts
index a027f68..4b3aa7d 100644
--- a/src/structs/Webhook.ts
+++ b/src/structs/Webhook.ts
@@ -128,6 +128,7 @@ export class Webhook {
           votedAt: new Date(body.data.created_at),
           expiresAt: new Date(body.data.expires_at),
           project: this._formatPartialProject(body.data.project),
+          query: body.data.query,
           user: this._formatUser(body.data.user),
         } as VoteCreatePayload;
 
diff --git a/src/typings.ts b/src/typings.ts
index 8aafc6b..f0db289 100644
--- a/src/typings.ts
+++ b/src/typings.ts
@@ -19,6 +19,9 @@ export type Platform = "discord" | "roblox";
 /** A project's type */
 export type ProjectType = "bot" | "server" | "game";
 
+/** An announcement's type */
+export type AnnouncementType = "announcement" | "event" | "new_feature";
+
 /** A locale for a project's payload */
 export type Locale =
   | "en"
@@ -155,6 +158,8 @@ export interface VoteCreatePayload {
   expiresAt: Date;
   /** The project that received this vote */
   project: PartialProject;
+  /** The parsed query parameters appended to the `/:id/vote` page URL */
+  query: Record<string, string>;
   /** The user who voted for this project */
   user: User;
 }
diff --git a/tests/mocks/data.ts b/tests/mocks/data.ts
index 9e07920..e306bd7 100644
--- a/tests/mocks/data.ts
+++ b/tests/mocks/data.ts
@@ -195,6 +195,10 @@ export const VOTE_CREATE_PAYLOAD = {
       platform: "discord",
       platform_id: "160105994217586689"
     },
+    query: {
+      key1: "value",
+      key2: "value2"
+    },
     user: {
       id: "160105994217586689",
       platform_id: "160105994217586689",
diff --git a/tests/mocks/endpoints.ts b/tests/mocks/endpoints.ts
index e51e555..42ca401 100644
--- a/tests/mocks/endpoints.ts
+++ b/tests/mocks/endpoints.ts
@@ -47,7 +47,7 @@ export const endpoints: MockEndpoint[] = [
   },
   {
     pattern: "/api/v1/projects/@me/commands",
-    method: "POST",
+    method: "PUT",
     data: ""
   },
   {