THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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Mark `ScramExtensionsCallback` as deprecated and remove it in next major release (3.0)
Rejected Alternatives
- Add customizable extensions to every SASL client
- | Not easily implementable, as we depend on a third-party library for PLAIN authentication
As such, I decided it is best we limit the scope of this KIP while still implementing it in a way which would support future extensions by other SASL mechanisms