The Linux Mint project has tested and approved the Linux Mint 20 ISO images and third-party mirrors have begun hosting the ISOs in anticipation of the final announcement from the Mint team.
The Linux Mint team has started pushing Linux Mint 20 beta images to third-party mirrors. The new update comes with several updates to packages like LibreOffice and the Linux kernel.
Linux Mint 20 will prevent snapd from being installed stealthily. It found that several packages, like Chromium, are just snap packages. It will advise users on how to get the software by other means.