[Freeciv-Dev] Re: (PR#2502) new savegames on 1.13.0

["Raimar Falke via RT" <rt@xxxxxxxxxxxxxx>]

On Sat, Dec 07, 2002 at 01:53:10AM -0800, Jason Short via RT wrote:
> On Sat, 2002-12-07 at 04:43, Raimar Falke via RT wrote:
> > On Fri, Dec 06, 2002 at 03:27:25PM -0800, Jason Short via RT wrote:
> 
> > > Another solution: use an optional capability to see if the new attribute
> > > form is supported.  If it's not, just ignore the attribute block.
> > 
> > When is this test done? New server saving? We can't test if the next
> > server which loads the game does support the new format.
> 
> True.  So using attributes here can give us backward compatibility (new
> servers able to load old games) but not forward compatibility (old
> servers able to load new games).

In the current code there is also no backward compatibility. A new
client will detect the old attribute format and discard it (and print
a message).

        Raimar

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