How we build the thing that publishes your changelog, your blog and your release notes.
Google's five words say the page was fetched and left out of the index. They say nothing about why. Here is what the string reports, how it differs from "discovered", and the evidence that narrows it to a cause.
Search Console's regex filters are RE2 expressions, which is a deliberately smaller syntax than the one most regex tutorials teach. What RE2 leaves out, what to write in place of each missing construct, and the two things a filter does not change.
The per-site limit is the one that binds: 2,000 calls a day and 600 a minute, counted against the property rather than against the key or the tool that asked.
Market4 turns one release note into a changelog page, a blog post, a mail-out and a week of social posts — and then tells you which of them brought anyone back.