* Lavalink now requires Java 17 or higher to run
* **Removal of all websocket messages sent by the client. Everything is now done via [REST](https://lavalink.dev/api/rest.html)**
* Remove default 4GB max heap allocation from docker image
* Removal of all `/v3` endpoints except `/version`. All other endpoints are now under `/v4`
* Reworked track loading result. For more info see [here](https://lavalink.dev/api/rest.md#track-loading-result)
* Update docker ubuntu base image from focal(`20`) to jammy(`22`)
* Update to Koe [`2.0.0-rc2`](https://github.com/KyokoBot/koe/releases/tag/2.0.0-rc2)
* Update Lavaplayer to [`2.0.4`](https://github.com/lavalink-devs/lavaplayer/releases/tag/2.0.4), which includes native support for artwork urls and ISRCs in the track info
* Update to the [Protocol Module](https://github.com/lavalink-devs/Lavalink/tree/master/protocol) to support Kotlin/JS
* Allow setting user data on tracks in the REST API. For more info see [here](https://lavalink.dev/api/rest.html#update-player-track)
* Added default plugin repository. Plugin devs can now request their plugin to be added to the default repository. For more info see [here](https://lavalink.dev/api/plugins.md#distributing-your-plugin)
* Addition of full `Track` objects in following events: `TrackStartEvent`, `TrackEndEvent`, `TrackExceptionEvent`, `TrackStuckEvent`
* Resuming a session now requires the `Session-Id` header instead of `Resume-Key` header
* Add JDA-NAS support for musl (`x86-64`, `aarch64`) based systems (most notably `alpine`)
* Add `OmissibleisPresent` & `OmissibleisOmitted` to the `protocol` module
* New config option to specify the directory to load plugins from. `lavalink.pluginsDir` (defaults to `./plugins`)
* Enable request logging by default
* Fixed error when seeking and player is not playing anything in
* Fixed null pointer when a playlist has no selected track
> [!WARNING]
> Lavalink previously set the `-Xmx` flag to `4G` in docker. This caused issues with some systems which had less than 4GB of RAM. We have now removed this flag and let the JVM decide the max heap allocation. The default is 1GB or 25% of total memory, whichever is lower.
> On how to increase the max heap allocation, see [here](https://lavalink.dev/configuration/docker.html#docker).
<details>
<summary>v4.0.0 - Betas</summary>