> 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

Release date: Dec 24 2022

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="https://2222059734-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FgZbaVXXtfTXMMcqdnKWV%2Fuploads%2Frbu4COrkXnVCVIshtMY5%2Fimage.png?alt=media&amp;token=33c6403e-2cb1-44db-abf9-e859e4061dac" alt=""><figcaption></figcaption></figure>

## New feature

### Dataset

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

<figure><img src="https://2222059734-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FgZbaVXXtfTXMMcqdnKWV%2Fuploads%2FPssmFNYnN88ImZxTYs2J%2Fimage.png?alt=media&amp;token=a3938567-8a77-4a52-ac36-85e1aa32e6c8" alt=""><figcaption></figcaption></figure>

### Dataset-Ontology

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

### Ontology Center

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

<figure><img src="https://2222059734-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FgZbaVXXtfTXMMcqdnKWV%2Fuploads%2Fts1yIaF46fHudK38e8aA%2Fimage.png?alt=media&amp;token=a559f1ca-e9da-4692-90e9-3da40518f735" alt=""><figcaption></figcaption></figure>

### API

* Support API
* Add API page
* Add API docs

## Changes

* Changed Output format
* Changed Xtreme1 Logo