Provide options for how to group XML sitemap files

Administrators can now choose how their site’s XML sitemap index is organized, grouping generated sitemap files by asset type in addition to the existing page layout grouping. This gives search engines smaller, more logically segmented sitemaps to crawl instead of one large undifferentiated
file, improving indexing efficiency for large or complex sites.

Key Benefits:

Improves SEO crawl efficiency for large, content-heavy sites through cleaner, logically segmented sitemaps
Gives site administrators direct control over sitemap organization without custom development
Supports better indexing of localized and segmented content

Status: Generally Available (aka OOTB)