On the backend, Next.js brought us SSR in 2016, MongoDB brought us document databases by winning “fastest growing database engine” in 2013 and 2014, and Docker brought us disposable containers in 2013.
The list is stacked towards older tech but that’s maybe because recent tech hasn’t proven itself yet: svelte in 2020 is still maturing AFAICT, and ive never heard of Vite (2021) or SolidJS (2022). I personally think many exciting non-AI trends are also ramping up now, such as Local First development (formalized in May 2023).
I think that the economy and innovation in general were curtailed due to the climaxing rampant corruption in the US, but the internet is something of an exception IMO.
This is all talking about developer abilities, of course: the constraints of corrupt capitalism mean that many of the actual sites released in the past decade have been terribly bloated and over-featured. But I think that’s partially a consequence of businesses moving everything into mobile-first websites and apps —- you’re gonna see a lot more low-margin websites.