To view the release notes for the version of SnapGene you are running do the following:
Run SnapGene .
Open the SnapGene "About" Window.
On macOS: Click menu SnapGene → About SnapGene.
On Windows: Click menu Help → About SnapGene.
On Linux: Click menu Help → About SnapGene.
Click the Release notes link.
The release notes will open in your default browser.