Recent Developments within the Crypto Ecosystem

Hey all,

I've been away from this space for a while and I'm looking to learn more about the recent developments in the crypto ecosystem. Aside from price and market fluctuations, what are some interesting things that have happened in the past year that are worth learning about. This could anything (ie technological, political, etc.)

I'm looking to discuss these topics within the comments so feel free to provide detailed responses as I definitely plan on engaging and asking follow up questions to learn more.