---
title: Movement disorder algorithm changelog
framework: coremotion
role: article
role_heading: Article
path: coremotion/movement-disorder-algorithm-changelog
---

# Movement disorder algorithm changelog

A chronological log of notable changes to the movement disorder algorithm.

## Overview

Overview The movement disorder algorithm measures and records tremors and dyskinetic symptoms for Parkinson’s disease. For more information on receiving and using this data, see Getting movement disorder symptom data. Unreleased The version() method for checking the algorithm’s current version is available in watchOS 9. 1.0.0 — 2018-07-17 Added Released the algorithm used in watchOS 5 and later.

## See Also

### Movement disorder

- [Getting movement disorder symptom data](coremotion/getting-movement-disorder-symptom-data.md)
- [Adhering to the movement disorder data collection requirements](coremotion/adhering-to-the-movement-disorder-data-collection-requirements.md)
- [CMMovementDisorderManager](coremotion/cmmovementdisordermanager.md)
- [CMTremorResult](coremotion/cmtremorresult.md)
- [CMDyskineticSymptomResult](coremotion/cmdyskineticsymptomresult.md)