Anyone else find they discover these sorts of things by accident. I never know when a feature was added but vague ideas of "thats modern". Feels different to when I only did C# and you'd read the new language features and get all excited. In a polyglot world and just the rate even individual languages evolve its hard to keep up! I usually learn through osmosis or a blog post like this (but that is random learning).
Reading release notes would have solved that issue ;)