After much consideration the Cóyotl Awards Chair and the FWG President have agreed to make the two following minor changes to the Cóyotl Awards categories:
The dividing line between short stories and novellas has been moved from 10,000 words to 20,000 words.
Anthologies are no longer required to contain works by three different authors. This will remove the confusion about how to categorize single-author short story collections.
You can find the complete rules here.