> For the complete documentation index, see [llms.txt](https://outreal-xr.gitbook.io/holofair-sdk/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://outreal-xr.gitbook.io/holofair-sdk/development/initial-setup/updating-holofair-sdk-in-an-existing-proect.md). # Updating HoloFair SDK in an existing proect You need to have the most recent HoloFair SDK update before you continue so any new components are available to you To check if you have the latest update you need to go into unity and find windows > package manager Open the packages that are already in unity and find HoloFair SDK. (If you do not have it you need to go back to "start here" and follow the instructions given in the github link) Click on the HoloFair SDK package and check what version you have, if there is an update available just click on update