We seem to be stuck in pixel perfection and identical experiences across devices and browsers, even though we really have very little control about how our work will land on any given user’s device.
Concurrent Mode is a set of new features that help React apps stay responsive and gracefully adjust to the user’s device capabilities and network speed. These features are still experimental and are subject to change.
Major features like async/await and Proxies are one thing, but every year there’s a steady stream of small, incremental improvements that go under the radar for me, as there’s always something bigger to learn.
The problem with content hashes in filenames is not technically that the hashes appear in the filenames, the problem is that those hashes then appear in the contents of other files, which causes those files to be invalidated when those hashes change.