Today we're launching Debug Timeline: an automatic list of everything that happened leading up to a bug. Engineers will now always get detailed repro steps without having to write them, thanks to the new feature which was developed after 20 rounds of feedback and iteration to ensure the details are just right. The feature includes automatic playback alongside video, jump-to-moment functionality from timeline to video, and easy copying of element attributes to build automated tests. The lead engineer and product manager recorded a tour of Debug Timeline, showcasing its capabilities.