I decided not to write a single giant post about WWDC, instead splitting my coverage among 4 posts, one about iOS, one for iPadOS, one for macOS, and one for the rest. Below are direct links to each post.
UPDATE: Added a supplemental post for the news that happened after Monday’s keynote
WWDC 2021 - IOS 15 BRINGS PANDEMIC FOCUSED IMPROVEMENTS AT THE END OF THE PANDEMIC
WWDC 2021 - IPADOS 15 BRINGS THE BEST OF IOS 2020 TO IPADS IN 2021