Since version 4.1.20 the plugin works excellent

Since version 4.1.20, the plugin has worked very well.

I have had this plugin since 2018. I don’t like updates, so I used the old versions for years. In 2022, I updated to the latest version, which reorganized my sub-sitemaps, and the number of indexed posts started to fall. At that time, my site had more than 520,000 posts and after that update, it started losing thousands of indexed posts monthly.

If someone has this problem, I recommend upgrading to at least version 4.1.20, because since this version, everything has worked very well. Since I updated to v4.1.20, my GSC has shown an increase in indexed posts each week. I now have almost 530,000 indexed posts. For the first time since 2022, I have almost all my posts indexed.

Since version 4.1.20, each new sub-sitemap appears as the next and not as the first. I don’t know if I explained this well, but because my site is large, I have more than one sub-sitemap. Previously, each new sub-sitemap would become the initial one—”post-sitemap.xml”—and this caused all sub-sitemaps to reorganize their URLs each time, which I think was the cause of losing indexation.

Since version 4.1.20, each newly created sub-sitemap becomes the next; for example, if I previously had the last sitemap as “post-sitemap10.xml,” the next sitemap now appears as “post-sitemap11.xml,” “post-sitemap12.xml,” “post-sitemap13.xml,” etc.

After the last plugin update in June 2024, Google stopped losing my URLs, and GSC found almost all my previously “lost” posts.