Not compatible with Rails 5.1.0.rc1

[jonhue]

Bundler could not find compatible versions for gem "railties":
  In Gemfile:
rails (~> 5.1.0.rc1) x86-mingw32 was resolved to 5.1.0.rc1, which depends on
      railties (= 5.1.0.rc1) x86-mingw32

sass-rails (~> 6.0.0.beta1) x86-mingw32 was resolved to 6.0.0.beta1, which
depends on
      railties (< 5.0, >= 4.0.0) x86-mingw32

Output after running bundle update

[rafaelfranca]

sass-rails 5.0.6 is compatible. Why are you using the beta version?

[jonhue]

@rafaelfranca I just wanted to be on the latest release.
Why is 5.0.6 compatible and 6.0.0 not?

[rafaelfranca]

Because the 6.0.0.beta1 is not ready yet.