> For the complete documentation index, see [llms.txt](https://docs.planetaryoceans.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.planetaryoceans.com/guide-v.-2.1/version-differences.md).

# 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

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Plugin version can be checked in the `PlanetaryOceans.uplugin` file in the root directory of the plugin.
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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* Removed outdated maps: the flat ocean map and the map using a static mesh for the ocean (instead of a quadtree-based mesh),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

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You **can** use 1.41 in UE 5.5. You will have to manually compile the plugin with this engine version.
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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.
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