feat: release version 1.0.0-beta.4 of spec

[bcoe]

having reworked our wording to be more inline with RFC-2119 and added support for ! (and the project having existed for a few years now) I think it's about high time that we drop the beta label and move to v1.0.0 of the spec 🍰

[zeke]

🚢

[damianopetrungaro]

My only concern is about the ! introduced recently.
See that is still not mandatory I was wondering if the tools were going to support it or not.

I am fine to release a non-beta version, but I would rather wait some time to see if the new signal is used, and so discuss to make it mandatory, introducing no BC with a final release :)

My 2 cents :)

[apetro]

I agree with @damianopetrungaro : In general would be wise to release a beta of the spec that is a candidate for being the 1.0.0 spec, before releasing that 1.0.0, to see what reaction the beta gets. In specific, it's an opportunity to get feedback on the ! spec feature and another chance to discover that it should be REQUIRED, before 1.0.0, since making it REQUIRED later would be a breaking change. :)