With how the web has evolved over the years, we've been caught on the side of being too far behind and being too far ahead. We want to move faster and find the right balance. v4 was a bit of a nightmare scenario, and upgrading from v3 was nuts. v4 to v5 _should_ be much simpler by comparison. Still some breaking changes, but nothing like before.
And yes! Definitely something that you can theoretically run forever without issue. Browsers basically have to keep supporting the historical properties, quirks, etc, so once you've built it, you're largely good to go :).
And yes! Definitely something that you can theoretically run forever without issue. Browsers basically have to keep supporting the historical properties, quirks, etc, so once you've built it, you're largely good to go :).