# Version differences

There are two versions of the plugin available on Fab.

UE 5.3 -> v. 1.41

UE 5.4 -> v. 1.41

UE 5.5 -> v. 1.5

UE 5.6 -> v. 1.5

{% hint style="success" %}
Plugin version can be checked in the `PlanetaryOceans.uplugin` file in the root directory of the plugin.
{% endhint %}

The main difference between 1.41 and 1.5 is that 1.5 supports large oceans, up to almost any radius. For more info check this page:

{% content-ref url="/pages/Yql3imulLbtqIZ96BSFq" %}
[Scalability and Precision](/guide-v.-2.1/scalability-and-precision.md)
{% endcontent-ref %}

Here's a full change log of the 1.5 update:

**What's new:**

* DirectX 11 and Vulkan support,
* Large ocean support:

  * The mesh generator and material now support any radius — including planets over 100,000 km in size,
  * Buoyancy now supports oceans with radii up to 10,000 km (exceeding Earth’s size),

  ,
* New Example Blueprint: `BP_GetWaveLocationExample`. Demonstrates how to retrieve wave data on the CPU — useful for custom buoyancy, splash effects, and more,

**Fixes:**

* Resolved aliasing jitter by smoothly fading normals with distance,
* Restricted foam rendering on the inner surface of the water,

**Misc**:

* Removed outdated maps: the flat ocean map and the map using a static mesh for the ocean (instead of a quadtree-based mesh),
* Restriced ocean actor rotation (that introduces complications for mesh rebasing and other features that eliminate floating point imprecision). Translation (moving) is still supported by everything including buoyancy,

**Important**:

* This update is **Unreal Engine 5.5+ only**. It requires Periodic World Space, a feature introduced in UE 5.5 and used in the material

{% hint style="success" %}
You **can** use 1.41 in UE 5.5. You will have to manually compile the plugin with this engine version.
{% endhint %}

{% hint style="danger" %}
You **cannot** use 1.5 in UE 5.3–5.4 as it utilizes new Periodic World Space that was added in UE 5.5.
{% endhint %}


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.planetaryoceans.com/guide-v.-2.1/version-differences.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.