4.0.0: 06/07/2022

What's Changed

• Breaking change: Removed the Exclusive option checkbox by @t20100 in #59
• Enabled "Launch JupyterLab" by default by @t20100 in #57
• Added "preview" support of Singularity images by @t20100 in #58

Full Changelog: v3.0.0...v4.0.0