While there have been hints of it before, Microsoft's commitment to support RFC3229+feed in the Windows RSS Platform Engine seems to have been restated more strongly today in a post on the Microsoft Team RSS Blog. The post is quite an interesting read as it gives some good hints as to what the folk at Microsoft are implementing. Anyone interested in the technical aspects of the blogging and syndication space should read this post in full. On the subject of RFC3229+feed they say:
Delta Encoding In addition to standard conditional GETs the RSS Platform download engine supports Delta Encoding (for details, see Bob Wyman's post "Using RFC 3229 with Feeds") which allows the server to respond with only the feed items that are new or have been updated, thereby possibly reducing the response significantly.
I think there will be a great deal of support in the community for Microsoft's helping us all reduce the bandwidth cost of growing the syndication web. RFC3229+feed will save many, many terabytes of otherwise wasted bandwidth. Unsurprisingly, some folk have already begun to blog in support of Microsoft's latest announcement.
This reminds me that it really has come time to prepare a formal IETF Internet Draft describing RFC3229+feed. It is time that we had something a bit more formal than a post on my blog as the documentation for this method. If anyone has any issues that should be addressed in such an ID, please let me know.