This version of Umbraco introduces new conventions for naming XSLT and REST extensions as well as a renaming of the Public Access storage file.
You no longer need to prefix your extension references with /bin and the public access storage file is now called access.config instead of access.xml.
This step of the installer will try to update your old references. If it fails due to permission settings, you'll need to make these changes manually!
Everything looks good. No changes needed for the upgrade, just press next.
The following changes will need to be made. Press to update changes button to proceed: