Restore New Page Indexing

Newly published pages on my custom-built site are invisible to Google even though older URLs remain indexed. I need someone to dive into Google Search Console, inspect the XML sitemap, robots.txt, crawl stats, and any other technical layers that could be blocking or delaying discovery.

Context you should know
• The site is custom coded; I’m not certain whether any lightweight CMS components are embedded.
• We did push a recent round of code changes, so a regression tied to that release is possible.

What I want from you
1. A concise diagnosis outlining the specific factors stopping or slowing Google from indexing new URLs.
2. The actual fix—whether that’s editing robots directives, repairing the sitemap, tweaking canonical tags, resolving crawl errors, or adjusting server headers—implemented and tested.
3. Verification inside Search Console that the affected pages are submitted and begin progressing to “Indexed”.
4. A brief hand-off note so I understand what was changed and how to avoid the issue in future deployments.

I’ll give you full Search Console access plus server credentials if needed. Let me know what additional information you need to get started.