Version all events

[tmeasday]

• Ensure all events have a v:1 field
• Check when receiving an event it either has no v field (SB5 or less), or v==1. If it has a higher version number, log a warning that the event may not be handled correctly.

This is for refs in particular (in the future we may connect to SB7+ iframes), but also for addon compatibility.

@ndelangen suggested v:6 to start. I'm OK with that, but we wouldn't want to change it to v:7 in SB7 unless the event payload changed. So it might get confusing. I'm not sure.

[ndelangen]

@tmeasday after giving it some more thought, i think having a v:1 is better. versioning storybook separately from the event versions seems fair to me.

[stale]

Hi everyone! Seems like there hasn't been much going on in this issue lately. If there are still questions, comments, or bugs, please feel free to continue the discussion. Unfortunately, we don't have time to get to every issue. We are always open to contributions so please send us a pull request if you would like to help. Inactive issues will be closed after 30 days. Thanks!

[stale]

Hey there, it's me again! I am going close this issue to help our maintainers focus on the current development roadmap instead. If the issue mentioned is still a concern, please open a new ticket and mention this old one. Cheers and thanks for using Storybook!