# Dependencies - Open Health Hub FHIR Implementation Guide v0.1.0

* [**Table of Contents**](toc.md)
* **Dependencies**

## Dependencies

### Dependencies

This implementation guide relies on the following specifications:




#### Cross Version Analysis

This is an R4 IG. None of the features it uses are changed in R4B, so it can be used as is with R4B systems. Packages for both [R4 (ohh-fhir.r4)](package.r4.tgz) and [R4B (ohh-fhir.r4b)](package.r4b.tgz) are available.

#### Global Profiles

*There are no Global profiles defined*

