But before we get into the dirty details of this change, let's take a step back and look at the bigger picture.
What is Googlebot?
Googlebot crawls the web (which is why it's often referred to as a "spider) in order to discover new content and get it indexed on search engines. It's called a "bot" because it's a self-regulated system that runs automatically much like a robot. Googlebot scans information all over the web with an absurd amount of computers to help index content. It uses an algorithmic process which helps determine which sites to crawl, how often, and how many pages to fetch from each site.
This change will allow developers more flexibility when building a single page application (i.e. Googlebot can now see the content of that app).
What does this mean for you, our beloved clients?
Several things, really:
It gives us more flexibility to create apps for different organizations and helps that content get more fully indexed.
It makes the jobs of developers a whole lot easier because they have more flexibility.
It means more opportunities for your content to get indexed so that may help with search visibility.