> For the complete documentation index, see [llms.txt](https://docs.xtreme1.io/xtreme1-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.xtreme1.io/xtreme1-docs/changelog/v-0.5.5.md).

# V 0.5.5

Xtreme1 v0.5.5 is released with New Ontology Center and 3D Data Visualization Features.

See [blog on Medium](https://medium.com/multisensory-data-training).

<figure><img src="/files/pgMTRH6bi41fBZOYJ1xj" alt=""><figcaption></figcaption></figure>

## New feature

### Dataset

* Add preview annotation objects feature&#x20;
* Support Coco format upload/export&#x20;
* Add scenario Search by classes&#x20;
* Add scenario search filter by classifications&#x20;
* Add Dataset Overview page Add Similarity Map

<figure><img src="/files/T9bBr1ZHMlMmaesN0AuE" alt=""><figcaption></figcaption></figure>

### Dataset-Ontology

* Support CRUD Class & Classifications&#x20;
* Support to save to ontology center&#x20;
* Support copy from ontology center Support to import/export Json

### Ontology Center

* Add scenario search feature&#x20;
* Support to CRUD Ontology&#x20;
* Support to CRUD Classes & Classifications (including Push to all)&#x20;
* Support to import/export Json

<figure><img src="/files/7xZCxoW6zNbS9BsJOKHa" alt=""><figcaption></figcaption></figure>

### API

* Support API&#x20;
* Add API page&#x20;
* Add API docs

## Changes

* Changed Output format
* Changed Xtreme1 Logo