What are Kernel Version number components (w.x.yy-zzz) called? - Ask Ubuntu


this question has answer here:

when looking @ kernel version numbers installed in /boot using work in progress command (find /boot/vm* -printf "%a@ %p\n") see:

1469098968.0000000000 /boot/vmlinuz-3.13.0-92-generic 1477523408.0000000000 /boot/vmlinuz-3.2.0-113-generic 1476549941.0000000000 /boot/vmlinuz-4.4.0-43-generic 1477008540.0000000000 /boot/vmlinuz-4.4.0-45-generic 1470540722.0000000000 /boot/vmlinuz-4.6.3-040603-generic 1471805944.0000000000 /boot/vmlinuz-4.7.1-040701-generic 1472208664.0000000000 /boot/vmlinuz-4.7.2-040702-generic 1473382012.0000000000 /boot/vmlinuz-4.7.3-040703-generic 1474853146.0000000000 /boot/vmlinuz-4.7.5-040705-generic 1475960925.0000000000 /boot/vmlinuz-4.8.1-040801-generic 1477145804.0000000000 /boot/vmlinuz-4.8.4-040804-generic

what proper names "w.xx.y-zzz" follows vmlinuz prefix?

the proposed duplicate link (what fourth number in release version mean?)states second segment called abi number. answer below muru states fourth segment abi number believe both wrong based on links provided in own answer below.

keep in mind question 4 segments w.x.yy-zzz , not fourth segment zzz.

calling w version, x major revision , y minor revision semantic versioning using change significance. linux hasn't used that semantic versioning in long time. until 2003, linux used odd-even versions (odd numbers unstable, numbers stable). , came 2.6, lasted geological age in software terms (till 2.6.39, 8 years).

then, pretty arbitrarily, linus bumped version 3.0. , ended of semantic versioning's applicability linux versions. , when 3.20 due, linus switched incrementing w whenever x got large enough he ran out of fingers , toes count it.

so, now, kernel version w.x, y upstream indicates patch released - ubuntu keeps 0, , z, noted, abi number.


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