Ory is the largest open source community in the world for cloud software application security. We maintain advanced open source security software solving authentication, authorization, access control, application network security, and delegation. Ory implements a variety of industry and best-practice standards including OAuth 2.0 / OAuth 2.1, OpenID Connect, Zero Trust Networking, Google Zanzibar Policy Framework, FIDO2 U2F, WebAuthn, TOTP, and more.

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where I can accces the old docs of ory keto?

Anyways you can find them on github using v0.7.0-alpha1 tag
<https://github.com/ory/keto/tree/v0.7.0-alpha.1/docs/versioned_docs>