Semver instead of revisions for charms?

[Rick Harding]

Thanks for the feedback Patrik and Stuart, I've added a note to look at the
gateway revisions to our next set of discussions.

On Mon, Feb 29, 2016 at 7:00 AM Mark Shuttleworth <mark at ubuntu.com> wrote:

>
> The approach we are discussing in the snappy world is to use "gateway"
> revisions, which are both forward and backward compatible, which encode
> the transition logic. They essentially handle the difficult upgrade, and
> enable subsequent revisions to drop support for the older schemes.
> Upgrades would then be guaranteed to go through those gateway revisions
> (i.e. from rev-current to rev-stable via a series of rev-gateways). If
> this sounds useful we could plan for the same approach in charms.
>
> Mark
>
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