This version is independent from the Power BI Marketplace and is available for historical purposes. It will not auto-update and will not be supported when the Marketplace version is updated.
If you are unsure about what this means, then it's probably best to continue using the Marketplace version.
Details for this release are available in the changelog on the documentation site.
The downloadable .pbiviz below has a different unique ID to the Marketplace version and as such can be "side-loaded" into your reports. You will therefore need to remember to update your visuals to use the marketplace version once that has gone fully live if you wish for these to remain in-sync.