Support for multiple account types for an account placeholder

[marcus.wolschon at googlemail.com]

On Mon, 23 Feb 2009 11:12:33 -0500, Derek Atkins <warlord at MIT.EDU> wrote:
> Adding new account types is... challenging...  Mostly it's a
> problem because of backwards compatibility..  You need to make sure
> that you add the logic for the new account well before you add the
> code to support using it.

Just to clarify this:
Is it policy for gnucash-development that you shall be able to open
files written by newer versions with a reasonably new but older
version of gnucash?
Did I understand your "well before" correctly?

Marcus