.travis.yml in learnosity-sdk-0.2.1 vs .travis.yml in learnosity-sdk-0.2.2

@@ -1,8 +1,18 @@
 sudo: false
+dist: focal
 language: ruby
 rvm:
-  - 2.3
-  - 2.4
-  - 2.5
-  - 2.6
-before_install: gem install bundler -v 2.0.2
+  - '2.6'
+  - '2.7'
+  - '3.0'
+  - '3.1'
+before_install:
+  # Login to docker hub
+  - echo "$DOCKERHUB_PASSWORD" | docker login -u "$DOCKERHUB_USERNAME" --password-stdin
+  - gem install bundler
+
+notifications:
+  slack:
+    rooms:
+      secure: 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
+    on_success: change