sitemap: If older version of standard, want it to have lower priority.

[odscjames]

No description provided.

[odscjames]

Let's discuss how further to go here.

At least we probably want the "203" string to be a Django Setting somewhere.

Do we want to try and have the version as a field on the page somewhere so we aren't parsing URLs? (Not that the URL's are likely to change.) Should we try and make guidance dev docs a different model?

[odscjames]

Wait, hold this. Just found https://developers.google.com/search/docs/crawling-indexing/sitemaps/build-sitemap Google ignores <priority> and <changefreq> values.
Guess we just have to set up the old pages to not be indexed at all.