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[year].[month].[patch]

ubuntu does two releases in a year, one in april (26.04) and one in october (26.10 on october 15)

https://en.wikipedia.org/wiki/Ubuntu_version_history

It came out in April. Their LTS releases always come out in April of even numbered years.

But the "final" LTS release is always in August, so maybe they should also have a .08

The versions are all pinned to the ones picked for the April release. The .1 at the end is just a grace period so people don't get update prompts in case there are bugs in the .04 release.

It's a patch release, therefore the .1 suffix.

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