✨ What's new?

Major changes

Message behavior, introducing acknowledgement & followups.
Messages created with a Message component are no longer independent and are replying to specific messages defined thanks to Message Originals, making things smoother, and more intuitive.
Message Originals: Message#isOriginal, getOriginal, deleteOriginal, getOriginals, originals, making huge behavior changes to Original methods. Learn more.
Client REST methods listed as DEPRECATED (these methods are going to be removed on the next update), making a difference between cache methods and REST methods that are already available under Client#rest and are well organized for you.
Message#attachmentURLs, enabling you to get an array of embedded content attached to the message
Message#getAttachments, get an array of MessageAttachment including a wide range of information on embedded content attached to the message.
Caching app-created messages, making Message Originals work with sent messages using REST, and make you able to retrieve data that may be useful to you.
Webhook execution support.
Typing provider library partially using OpenAPI for more accurate and up-to-date typings.
Bringing more consistency in type interfaces, and more.
Renamed a bunch of structure classes such as GuildCategory, GuildRole, etc..
Ported TouchGuild to TypeScript 5.0+

Cannot remove user reactions (missing query)
Client#editMessage replica newMessage property having type object instead of EditMessageOptions
Message Constructor having params? property set to { originalMessageID?: string | null; } instead of MessageConstructorParams
EditMessageOptions: replyMessageIds, isSilent, isPrivate properties being present, however cannot be set.
Message#edit having a custom type instead of globalized EditMessageOptions.
Web socket reconnection attempt variable: currReconnectAttempt being reset at each attempt.
Session not being invalidated appropriately.
AppUser (previously UserClient) undefined on "ready" event trigger (Client#user).
REST/Channels#editMessage params property having type object instead of MessageConstructorParams.
REST/Channels#getMessage params property having type object instead of MessageConstructorParams.
Fixed REST route usage not working properly and being ignored.
Fixed typing issues after updating the typing provider library.

Add REST Mode, enabling you to perform requests without connecting to the gateway.
Add targetUserID?: "@me" | string parameter to REST/Channels#deleteReaction, so you can target which user to remove the reaction from.
Add MessageConstructorParams, locating a wide range of Constructor parameters, including Originals.
Add the ability to set if the Web socket has to reconnect on connection loss or not using wsReconnect on Client constructor initialization.
Add type interface MessageAttachment
Add deprecations type into Client constructor parameters, making you able to revert to previous behaviors (independentMessageBehavior), we do not recommend it, as it'll be removed sooner or later.
Grouping typings into an index.
Ignore /lib path to make the library even more lightweight while maintaining TypeScript/JavaScript: CommonJS, ES compatibility.

createFollowup (can only be used if the message has been acknowledged),
createMessage behavior, cannot be used after message is acknowledged.
isOriginal, a property that is either set to "trigger", "response" or false.
acknowledged property
getOriginal, deleteOriginal & getOriginals completing the Original methods.
editFollowup, deleteFollowup
Changed Message#bot -> app
attachmentURLs – Get an Array of embedded attachment URLs
getAttachments – Get an Array of MessageAtachment
Embeds are having more consistent types! Utility tools such as embedsToParsed and embedsToRaw have been added internally to enable this.

executeWebhook
requestToken – Request the Webhook token if not defined, sets it automatically and returns the value.
REST/Webhooks dedicated to Webhook methods such as create, edit, delete and execute.
WebhookExecuteOptions, WebhookMessageDetails type interfaces.

Methods are now sorted in alphabetically (internally).
Removed: calendarEventComment.d.ts
Removed: channel.d.ts
Removed: doc.d.ts
Removed: docComment.d.ts
Removed: forumThread.d.ts
Removed: calendarEvent.d.tss
Improved JSDocs
Each API types are having their Raw version for consistency.
Renamed GuildSubscription to Subscription
Renamed GuildRole to Role
Renamed GuildGroup to Group
Renamed GuildCategory to Category
Renamed CalendarEventComment to CalendarComment
UserTypes: app, user instead of bot, user. (added RawUserTypes as well)
webhookCreate (REST/Guilds) -> create (REST/Webhooks)
webhookEdit (REST/Guilds) -> edit (REST/Webhooks)
webhookDelete (REST/Guilds) -> delete (REST/Webhooks)
Moved editChannel & deleteChannel to REST/Channels and renamed them edit and delete.
UserClient -> AppUser
Renamed MessageEmbedOptions to Embed as opposed to RawEmbed
Message#replyMessageIds -> replyMessageIDs
Message#hiddenLinkPreviewUrls -> hiddenLinkPreviewURLs

Full Changelog: 1.2.5...1.3.0