BUG: "ignoreUnstable": false is the default

[gilescope]

How are you running Renovate?

A Mend.io-hosted app

Which platform you running Renovate on?

GitHub.com

Which version of Renovate are you using?

42.18.0

Please tell us more about your question or problem

Renovate is persistently raising unsafe PRs telling us to upgrade to pre-release versions of software that hasn't been fully tested and isn't suitable to depend upon in a production environment. Why on earth would it be a good idea to suggest to upgrade from a stable released version to a pre-released version? This seems dangerous as a default.

Please can we have safe defaults! Love the product - this is the only thing that's wrong with it.

Logs (if relevant)

N/A

[jamietanna]

Can you share some more information? https://docs.renovatebot.com/configuration-options/#ignoreunstable seems to see the default as true