Unable to install with node 18

[snex]

The documentation states that Node >v16 is supported, yet when I do yarn following the documentation here, I get the following:

yarn install v1.22.22
[1/5] Validating package.json...
error [email protected]: The engine "node" is incompatible with this module. Expected version ">=20". Got "18.20.4"
error Found incompatible module.
info Visit https://yarnpkg.com/en/docs/cli/install for documentation about this command.

[morguldir]

Fyi It was dropped here https://github.com/matrix-org/matrix-appservice-irc/releases/tag/2.0.0

[snex]

Ok then please update the documentation.

[ChristianTacke]

Please also document the expected / recommended yarn version.

I did a yarn set version stable to get the latest stable version of yarn. But it seems, that someting like 1.22..x is much better than 4.x.