On Friday I gave the closing keynote at the WeAreDevelopers World Congress North America in San Jose. I tied together the key trends from the past year into a chronological exploration of everything that happened in 2026. The video is on YouTube; here are my annotated slides and notes to accompany the talk.

And as an annotated presentation:

I'm going to give a lightning tour of everything that has happened so far in 2026. The year isn't over yet!

For me, 2026 started a couple of months earlier in November 2025.

November saw the release of two important models: Claude Opus 4.5 and GPT-5.1.