Version 4.0.0 now requires a license key?

[hhyyrylainen]

I'm trying to update from <PackageReference Include="SixLabors.ImageSharp" Version="3.1.12" /> to <PackageReference Include="SixLabors.ImageSharp" Version="4.0.0" /> which causes the following build error:

13>SixLabors.ImageSharp.targets(27,5): Error  : No Six Labors license found. Set $(SixLaborsLicenseKey), set $(SixLaborsLicenseFile), or add a 'sixlabors.lic' file to the project/workspace.
Please obtain a license from https://sixlabors.com/pricing/

So is this a bug in the new release or is it now mandatory for open source projects to get a license key?

[gfoidl]

See #2981 and License Enforcement Changes and a New Subscription Tier.

[hhyyrylainen]

Thanks. I got the update through dependabot so I wasn't up to date on the news.