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Shiro v1 version notice

As of 2024-03-01, Shiro v1 will soon be superseded by v2.

Please just take 2 minutes to read and understand this - it is really important. Really. The terms and concepts here are referred to everywhere in the documentation, and it will greatly simplify your understanding of Shiro and security in general.

Security can be really confusing because of the terminology used. We’ll make life easier by clarifying some core concepts, and you’ll see how nicely the Shiro API reflects them: