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Support for TargetRubyVersion 2.6 #1680
We are trying to set Hound to target Ruby 2.6 but it looks like Hound is not compatible with 2.6 due to the version of Rubocop in use currently. Support for targeting Ruby 2.6 was added in Rubocop v0.60.0 and Hound seems to using v0.59.2.
For now we'll set the target Ruby version back to 2.5 until Hound can support 2.6.
Hound supports both Ruby 2.6 and RuboCop version
Let me know if that helps.