Firmament's Estimated Delivery (Release) Date was July 2020.
That date was an Estimate, and has since changed, as noted in Firmament Kickstarter Updates #21 and #23.
While no new Release Date has been announced or confirmed at this time, we hope to release Firmament in late 2022.
When a new Release Date for Firmament is known, it will be crowed from the rooftops! It'll also be in the Updates (page linked above), on Cyan's social media channels, and in our Cyan Insider newsletter.