Update travis to include latest Xcode, and cull unsupported ios,tvos …

…versions

.travis.yml

@@ -25,6 +25,16 @@ jobs:
   # Unit Tests - Mac
   # ----------------------------------------------------------------------------
 
+  - osx_image: xcode12.2 # macos 10.15.7
+    name: macOS 10.15.7 unit tests
+    stage: macOS unit tests
+    env: PLATFORM=macOS
+
+  - osx_image: xcode11.6 # macos 10.15.5
+    name: macOS 10.15.5 unit tests
+    stage: macOS unit tests
+    env: PLATFORM=macOS
+
   - osx_image: xcode10.2 # macos 10.14
     name: macOS 10.14 unit tests
     stage: macOS unit tests
@@ -39,8 +49,16 @@ jobs:
   # Unit Tests - iOS
   # ----------------------------------------------------------------------------
 
+  - osx_image: xcode12.2
+    name: iOS 14 unit tests
+    stage: unit tests
+    env:
+    - PLATFORM=iOS
+    - OS=14.2
+    - DEVICE="iPhone 12 mini"
+
   - osx_image: xcode11
-    name: iOS 13.x unit tests
+    name: iOS 13 unit tests
     stage: unit tests
     # Xcode 11+ no longer ships with all device combinations premade
     before_script: xcrun simctl create "13-xs" "iPhone XS" com.apple.CoreSimulator.SimRuntime.iOS-13-0
@@ -49,7 +67,7 @@ jobs:
     - OS=13.0
     - DEVICE="iPhone XS"
 
-  - osx_image: xcode10.2
+  - osx_image: xcode11
     name: iOS 9-12 unit tests
     stage: unit tests
     env: PLATFORM=iOS
@@ -68,17 +86,25 @@ jobs:
   # Unit Tests - tvOS
   # ----------------------------------------------------------------------------
 
-  - osx_image: xcode10.2
-    name: tvOS 9-12 unit tests
+  - osx_image: xcode12.2
+    name: tvOS 14 unit tests
+    stage: unit tests
+    env: PLATFORM=tvOS
+    script:
+    - make test OS=14.0
+
+  - osx_image: xcode11
+    name: tvOS 13 unit tests
     stage: unit tests
     env: PLATFORM=tvOS
     script:
+    - make test OS=13.0
     - make test OS=12.2
     - make test OS=12.1
     - make test OS=11.4
     - make test OS=10.2
     - make test OS=9.2
-    
+
   # ----------------------------------------------------------------------------
   # Static framework, Carthage and Swift Package Manager builds
   # ----------------------------------------------------------------------------