Another tiny release for you today.
- Removed support for Ruby 2.5 (which was end of line 9 months ago)
- Removed support for redis-rb < 3 (and fixed deprecated use of Redis#pipelined) (https://github.com/jnunemaker/flipper/pull/603).
- Add Ruby 3.0 and 3.1 to the CI matrix and fix groups block arity check for ruby 3 (https://github.com/jnunemaker/flipper/pull/601)
- Fix Flipper UI Rack application when
Rack::Session::Poolis used to build it (https://github.com/jnunemaker/flipper/pull/606).
Should be a safe and easy upgrade unless you are on Ruby 2.5 or redis-rb < 3. If either are a big problem, let me know.