Safari Extension for 1Password 8 and SSH Beta

In the https://developer.1password.com/docs/ssh/get-started/ documentation for this SSH beta you state that we need a beta extension for support of filling SSH public keys under the Set up the 1Password extension (Beta) heading. But the link seems to refer to only the Safari beta extension included with 1Password 7, not a beta of the extension for 1Password 8 that ships as its own app on the Mac App Store. When will there be a beta of the extension that functions with 1Password 8? It seems odd that this is not something the docs refer to directly, given that the basic SSH beta requires 1Password 8.

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1Password Version: 8.6.0-26.BETA
Extension Version: Safari extension 2.2.3
OS Version: macOS 12.2.2