Introducing the "BigInt" proposal, a new primitive of arbitrary precision integers, which has been reached stage 4 in the TC39 process and is included in the language specification of 2020 - the 11th edition.
Introducing the "Dynamic Import" proposal, arriving with new import() keyword enabling to load a module on demand at runtime, which has been reached stage 4 in the TC39 process and is included in the language specification of 2020 - the 11th edition.
Introducing the changes that were done in the seventh version of npm for better performance while allowing deterministic and reproducible builds, focusing on the new package-lock.json format (v2) and Yarn's lockfile support.
Explaining the idea behind the new experimental types of React components - Server Components and Shared Components, allowing to have rich interactivity of client-side applications with fast performance in the same ecosystem, leveraging the server-side.
Let's explain the challenge that comes up when mixing SSR and responsive design, and introduce a couple of possible strategies to approach the problem - inspired by CSS Media Queries, userAgent and such.