On May 28, 2015 at 9:30 started in San Francisco the Google I/O 2015 developer conference with a live keynote from Sundar Pichai.
Here is a video from The Verge that highlights the best moment of the keynotes in 10 minutes.
If you want to follow the whole keynote here is the video from Google Developers Channel.
If you want to dive deeper on the updates of this Google I/O edition you can read The 12 most important announcements from Google I/O 2015.