To:
EPP Provreg <ietf-provreg@cafax.se>
From:
Andrew Sullivan <ajs@shinkuro.com>
Date:
Tue, 26 Jan 2010 09:15:08 -0500
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Subject:
Re: [ietf-provreg] XML Schema versioning in 4310bis
On Tue, Jan 26, 2010 at 09:01:47AM +0100, Ulrich Wisser wrote: > Hi, > > in this case I have to agree with James. We discussed changing the URI > and came to the conclusion that changing the URI will break old clients > without any need to do so. That argument is circular. What is up for debate is whether there is in fact a need to do this. > But let's have a look on the alternatives: > > 1. Server supports only the "old" 1.0 > - no changes on client or server > 2. Server supports only the "new" 1.0 > - only changes on the server side needed > 3. Server supports both > - only changes on the server side needed But in (2) and (3), the client _can't tell_ what support is in the server. The whole point of the handshake in the protocol is to make it possible for people to tell. > Which registry is going to support 1.0 after 1.1 has been released for > any time longer then needed? Who knows? This is the Internet. We have parts of the DNS infrastructure (including several MSFT APIs) that don't support the DNS Unknown type, even though that was specified over 10 years ago and is terribly useful. > Another question comes to mind: Why should 1.1 be backwards compatible? > If we break the URI there is no need to keep the broken <rem/>, is it? Right. A -- Andrew Sullivan ajs@shinkuro.com Shinkuro, Inc. -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- List run by majordomo software. For (Un-)subscription and similar details send "help" to ietf-provreg-request@cafax.se