A Suggestion for RSS Feeds

I've been looking into more and more RSS feeds and have noticed a few flaws in the way rss feeds operate. I would like to recommend future formatting of feeds to include these features to help feed parsers more effeciently.

1. Unique post identifiers
   
   
   
   • This will aid in providing the feed parser to know whether a previously updated entry is a new post or merely an updated post. Instead of relying on titles, descriptions and links, the only thing a parser would need to do is provide the Unique post identifier. This is for recurring rss parser engines and not single-run parsers such as Google's 'IG' homepage.
   
   
   • This will prevent duplicate/errornous feed entries while archiving xml feed
   
   
   • [A-Za-z0-9] string, length: 6~32 characters
   
   
   
   


2. Always define the TTL value
   
   
   
   • This will prevent feed parsers from downloading the RSS feed more than once in a given time. Most default values for smarter feed parsers is somewhere between 30-60min, but most manual feed parsers are able to download the feed whenever the user opens up the application.
   
   
   • This will prevent bandwidth usage when it isn't required.
   
   
   • [0-9] integer
   
   
   • citation: RSS 2.0 Specification
   
   
   
   


3. Create mini-rss feed
   
   
   
   • A 'mini' rss feed can be used by feed parsers to conserve on bandwidth usage. A small file will be downloaded by the feed parser that will have a small numerical value such as a UNIX-based date of the last updated (note: not date of current reading) entry. This small feed url should be included in the master XML file.
   
   
   • (code) Inclusion code inside master xml
     <channel> ... <update>http://.../mini.rss</update> ... </channel>
     
   
   
   • (code) Actual mini xml
     <update>200601160026</update>
     
   
   
   • [0-9] integer