I'm not familiar with Linux version numbers, so apologies if this is a stupid question. How often do version numbers increment that any portion would overflow 8 bits? None of the software I've ever worked on would even come close to it.
https://en.wikipedia.org/wiki/Firefox_version_history isn’t compete, even if you click through to individual pages, but it would hugely surprise me if there were less than 256.
Any product older than 25 years would need only 10 releases/security updates per year to get there.