However, without a clear view of where extensibility may occur, extension may break any content formatted to older creole versions.

For example, if a new creole uses the tilde as escape character, or assigns special meaning to leading hyphens (as discussed in the [[List Markup Alternatives]]), then older content will break that contains tilde or leading hyphens without any markup intentions.

I therefore believe that at least for the case of text-based markup, we need an extensibility container, compare [[Generic Extension Element Proposal]].

-- Gregor Hagedorn - 2007-03-09

The pre-1.0 Creole versions are not required to be backward-compatible. We are asically trying out different things, this is beta (or even alpha). Early adopters must consider converting their wikis when the final specification is released.

Once we have the basic markup sorted out, Creole is supposed to be stable -- that is, only very minor chnages or clarifications will occur, possible rewording of the spec, etc.

That's why we are so bitchy -- whatever is decided now will stay.

-- [[Radomir Dopieralski]], 2007-Mar-10