Pick what you run. Lists the CVEs Apple fixed after that version — in later updates of the same version line, and fixes that only shipped in newer major versions. Based on Apple's advisories only; a CVE fixed only in a newer major version may or may not affect older ones.
CVEs with a known “reported to Apple” date — from the Project Zero issue tracker, ZDI advisories’ disclosure timelines and write-up timelines (only a fraction of all CVEs). Days are counted to Apple’s first published fix. All filters apply.