Although we usually release a new version of the Clements Checklist in August, unfortunately we will NOT be able to issue an update in 2020. Instead, the next release of an updated eBird/Clements Checklist will be in August 2021.
This delay is driven by technical considerations. The Lab’s database management systems are being overhauled throughout 2020, and we will not be able to implement any taxonomic revisions in the eBird/Clements Checklist until we complete this database work. We apologize for the delay, and we look forward to being ready to release an update again next year.