Github.com/pkg/errors just got archived, I made a maintained v2 with many fixes (gitlab.com)

Besides other improvements, the list of issues here which I think my fork addresses/fixes:

Message formatting `WithMessage` vs. `Wrap`: https://github.com/pkg/errors/pull/114

Do not re-add stack trace if one is already there: https://github.com/pkg/errors/pull/122

Be explicit when you want to record a stack trace again vs. do not if it already exists: https://github.com/pkg/errors/issues/75 https://github.com/pkg/errors/issues/158 https://github.com/pkg/errors/issues/242

`StackTrace()` should return `[]uintptr`: https://github.com/pkg/errors/issues/79

Do not assume `Cause` cannot return `nil`: https://github.com/pkg/errors/issues/89

Obtaining only message from `Wrap`: https://github.com/pkg/errors/issues/93

`WithMessage` always prefixes the message: https://github.com/pkg/errors/issues/102

Differentiate between "wrapping" and "causing": https://github.com/pkg/errors/issues/112

Support for base errors: https://github.com/pkg/errors/issues/130 https://github.com/pkg/errors/issues/160

Support for a different delimiter by using Errorf: https://github.com/pkg/errors/issues/207 https://github.com/pkg/errors/issues/226

Support for Errorf wraping an error: https://github.com/pkg/errors/issues/244

Having each function wrap only once: https://github.com/pkg/errors/issues/223