.travis.yml in validates_timeliness-5.0.1 vs .travis.yml in validates_timeliness-6.0.0.alpha1

@@ -1,15 +1,32 @@
+dist: focal
+os: linux
 language: ruby
 before_install: gem install bundler
 cache: bundler
 
 gemfile:
-  - gemfiles/rails_5_0.gemfile
-  - gemfiles/rails_5_1.gemfile
-  - gemfiles/rails_5_2.gemfile
+  - gemfiles/rails_6_0.gemfile
+  - gemfiles/rails_6_1.gemfile
+  - gemfiles/rails_edge.gemfile
 
 rvm:
-  - "2.5.3"
+  - "2.5.8"
+  - "2.6.6"
+  - "2.7.2"
+  - "3.0.0"
+  - ruby-head
+
+jobs:
+  allow_failures:
+    - rvm: ruby-head
+    - gemfile: gemfiles/rails_edge.gemfile
+  exclude:
+    - rvm: 2.5.8
+      gemfile: gemfiles/rails_edge.gemfile
+    - rvm: 2.6.6
+      gemfile: gemfiles/rails_edge.gemfile
+  fast_finish: true
 
 script: 'bundle exec rspec'
 
 notifications:
   email: