exercism · robkeim · Nov 27, 2019 · Nov 26, 2019
diff --git a/.travis.yml b/.travis.yml
@@ -1,7 +1,7 @@
 dist: xenial
 language: csharp
 mono: none
-dotnet: 2.2.203
+dotnet: 3.0.100
 addons:
   apt:
     packages:

diff --git a/docs/INSTALLATION.md b/docs/INSTALLATION.md
@@ -1,14 +1,14 @@
 ### Installing .NET Core
 
-The C# track is built on top of the [.NET Core](https://www.microsoft.com/net/core/platform) platform, which runs on Windows, Linux and macOS. To build .NET Core projects, you can use the .NET Core Command Line Interface (CLI). This CLI is part of the .NET Core SDK, which you can install by following the [installation instructions](https://www.microsoft.com/net/download/core). Note: the C# track requires SDK version 2.1 or greater.
+The C# track is built on top of the [.NET Core](https://www.microsoft.com/net/core/platform) platform, which runs on Windows, Linux and macOS. To build .NET Core projects, you can use the .NET Core Command Line Interface (CLI). This CLI is part of the .NET Core SDK, which you can install by following the [installation instructions](https://www.microsoft.com/net/download/core). Note: the C# track requires SDK version 3.0 or greater.
 
 After completing the installation, you can verify if the CLI was installed succesfully by running this command in a terminal:
 
 ```bash
 dotnet --version
 ```
 
-If the output is a version greater than or equal to `2.1.0`, the .NET Core SDK has been installed succesfully.
+If the output is a version greater than or equal to `3.0.100`, the .NET Core SDK has been installed succesfully.
 
 ### Using an IDE
 

diff --git a/exercises/accumulate/Accumulate.csproj b/exercises/accumulate/Accumulate.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/acronym/Acronym.csproj b/exercises/acronym/Acronym.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
 
-    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/affine-cipher/AffineCipher.csproj b/exercises/affine-cipher/AffineCipher.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/all-your-base/AllYourBase.csproj b/exercises/all-your-base/AllYourBase.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/allergies/Allergies.csproj b/exercises/allergies/Allergies.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/alphametics/Alphametics.csproj b/exercises/alphametics/Alphametics.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/anagram/Anagram.csproj b/exercises/anagram/Anagram.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/armstrong-numbers/ArmstrongNumbers.csproj b/exercises/armstrong-numbers/ArmstrongNumbers.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/atbash-cipher/AtbashCipher.csproj b/exercises/atbash-cipher/AtbashCipher.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/bank-account/BankAccount.csproj b/exercises/bank-account/BankAccount.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/beer-song/BeerSong.csproj b/exercises/beer-song/BeerSong.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/binary-search-tree/BinarySearchTree.csproj b/exercises/binary-search-tree/BinarySearchTree.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/binary-search/BinarySearch.csproj b/exercises/binary-search/BinarySearch.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/binary/Binary.csproj b/exercises/binary/Binary.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/bob/Bob.csproj b/exercises/bob/Bob.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/book-store/BookStore.csproj b/exercises/book-store/BookStore.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/bowling/Bowling.csproj b/exercises/bowling/Bowling.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/change/Change.csproj b/exercises/change/Change.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/circular-buffer/CircularBuffer.csproj b/exercises/circular-buffer/CircularBuffer.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/clock/Clock.csproj b/exercises/clock/Clock.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/collatz-conjecture/CollatzConjecture.csproj b/exercises/collatz-conjecture/CollatzConjecture.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>    
-    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/complex-numbers/ComplexNumbers.csproj b/exercises/complex-numbers/ComplexNumbers.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
 
-    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/connect/Connect.csproj b/exercises/connect/Connect.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/crypto-square/CryptoSquare.csproj b/exercises/crypto-square/CryptoSquare.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/custom-set/CustomSet.csproj b/exercises/custom-set/CustomSet.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/darts/Darts.csproj b/exercises/darts/Darts.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/diamond/Diamond.csproj b/exercises/diamond/Diamond.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/difference-of-squares/DifferenceOfSquares.csproj b/exercises/difference-of-squares/DifferenceOfSquares.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/diffie-hellman/DiffieHellman.csproj b/exercises/diffie-hellman/DiffieHellman.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/dnd-character/DndCharacter.csproj b/exercises/dnd-character/DndCharacter.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/dominoes/Dominoes.csproj b/exercises/dominoes/Dominoes.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/dot-dsl/DotDsl.csproj b/exercises/dot-dsl/DotDsl.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/error-handling/ErrorHandling.csproj b/exercises/error-handling/ErrorHandling.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/etl/Etl.csproj b/exercises/etl/Etl.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/flatten-array/FlattenArray.csproj b/exercises/flatten-array/FlattenArray.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/food-chain/FoodChain.csproj b/exercises/food-chain/FoodChain.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/forth/Forth.csproj b/exercises/forth/Forth.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/gigasecond/Gigasecond.csproj b/exercises/gigasecond/Gigasecond.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>    
-    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/go-counting/GoCounting.csproj b/exercises/go-counting/GoCounting.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>    
-    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/grade-school/GradeSchool.csproj b/exercises/grade-school/GradeSchool.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>    
-    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/grains/Grains.csproj b/exercises/grains/Grains.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>    
-    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>