diff --git a/vs4win/Chapter01/AboutMyEnvironment/AboutMyEnvironment.csproj b/vs4win/Chapter01/AboutMyEnvironment/AboutMyEnvironment.csproj
index 74abf5c..f02677b 100644
--- a/vs4win/Chapter01/AboutMyEnvironment/AboutMyEnvironment.csproj
+++ b/vs4win/Chapter01/AboutMyEnvironment/AboutMyEnvironment.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net7.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
   </PropertyGroup>
diff --git a/vs4win/Chapter01/HelloCS/HelloCS.csproj b/vs4win/Chapter01/HelloCS/HelloCS.csproj
index 74abf5c..f02677b 100644
--- a/vs4win/Chapter01/HelloCS/HelloCS.csproj
+++ b/vs4win/Chapter01/HelloCS/HelloCS.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net7.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
   </PropertyGroup>
diff --git a/vs4win/Chapter02/Arguments/Arguments.csproj b/vs4win/Chapter02/Arguments/Arguments.csproj
index df2ad2f..b0fc631 100644
--- a/vs4win/Chapter02/Arguments/Arguments.csproj
+++ b/vs4win/Chapter02/Arguments/Arguments.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net7.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
   </PropertyGroup>
diff --git a/vs4win/Chapter02/AsyncConsole/AsyncConsole.csproj b/vs4win/Chapter02/AsyncConsole/AsyncConsole.csproj
index df2ad2f..b0fc631 100644
--- a/vs4win/Chapter02/AsyncConsole/AsyncConsole.csproj
+++ b/vs4win/Chapter02/AsyncConsole/AsyncConsole.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net7.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
   </PropertyGroup>
diff --git a/vs4win/Chapter02/Ch02Ex03Numbers/Ch02Ex03Numbers.csproj b/vs4win/Chapter02/Ch02Ex03Numbers/Ch02Ex03Numbers.csproj
index ebe527c..05635b2 100644
--- a/vs4win/Chapter02/Ch02Ex03Numbers/Ch02Ex03Numbers.csproj
+++ b/vs4win/Chapter02/Ch02Ex03Numbers/Ch02Ex03Numbers.csproj
@@ -2,7 +2,7 @@
 
 	<PropertyGroup>
 		<OutputType>Exe</OutputType>
-		<TargetFramework>net6.0</TargetFramework>
+		<TargetFramework>net7.0</TargetFramework>
 		<ImplicitUsings>enable</ImplicitUsings>
 		<Nullable>enable</Nullable>
 	</PropertyGroup>
diff --git a/vs4win/Chapter02/Formatting/Formatting.csproj b/vs4win/Chapter02/Formatting/Formatting.csproj
index ebe527c..05635b2 100644
--- a/vs4win/Chapter02/Formatting/Formatting.csproj
+++ b/vs4win/Chapter02/Formatting/Formatting.csproj
@@ -2,7 +2,7 @@
 
 	<PropertyGroup>
 		<OutputType>Exe</OutputType>
-		<TargetFramework>net6.0</TargetFramework>
+		<TargetFramework>net7.0</TargetFramework>
 		<ImplicitUsings>enable</ImplicitUsings>
 		<Nullable>enable</Nullable>
 	</PropertyGroup>
diff --git a/vs4win/Chapter02/Numbers/Numbers.csproj b/vs4win/Chapter02/Numbers/Numbers.csproj
index 74abf5c..f02677b 100644
--- a/vs4win/Chapter02/Numbers/Numbers.csproj
+++ b/vs4win/Chapter02/Numbers/Numbers.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net7.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
   </PropertyGroup>
diff --git a/vs4win/Chapter02/Variables/Variables.csproj b/vs4win/Chapter02/Variables/Variables.csproj
index 74abf5c..f02677b 100644
--- a/vs4win/Chapter02/Variables/Variables.csproj
+++ b/vs4win/Chapter02/Variables/Variables.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net7.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
   </PropertyGroup>
diff --git a/vs4win/Chapter02/Vocabulary/Vocabulary.csproj b/vs4win/Chapter02/Vocabulary/Vocabulary.csproj
index 741fa15..6d3ae66 100644
--- a/vs4win/Chapter02/Vocabulary/Vocabulary.csproj
+++ b/vs4win/Chapter02/Vocabulary/Vocabulary.csproj
@@ -2,7 +2,7 @@
 
 	<PropertyGroup>
 		<OutputType>Exe</OutputType>
-		<TargetFramework>net6.0</TargetFramework>
+		<TargetFramework>net7.0</TargetFramework>
 		<ImplicitUsings>enable</ImplicitUsings>
 		<Nullable>enable</Nullable>
 	</PropertyGroup>
diff --git a/vs4win/Chapter03/Arrays/Arrays.csproj b/vs4win/Chapter03/Arrays/Arrays.csproj
index ebe527c..05635b2 100644
--- a/vs4win/Chapter03/Arrays/Arrays.csproj
+++ b/vs4win/Chapter03/Arrays/Arrays.csproj
@@ -2,7 +2,7 @@
 
 	<PropertyGroup>
 		<OutputType>Exe</OutputType>
-		<TargetFramework>net6.0</TargetFramework>
+		<TargetFramework>net7.0</TargetFramework>
 		<ImplicitUsings>enable</ImplicitUsings>
 		<Nullable>enable</Nullable>
 	</PropertyGroup>
diff --git a/vs4win/Chapter03/BitwiseAndShiftOperators/BitwiseAndShiftOperators.csproj b/vs4win/Chapter03/BitwiseAndShiftOperators/BitwiseAndShiftOperators.csproj
index ebe527c..05635b2 100644
--- a/vs4win/Chapter03/BitwiseAndShiftOperators/BitwiseAndShiftOperators.csproj
+++ b/vs4win/Chapter03/BitwiseAndShiftOperators/BitwiseAndShiftOperators.csproj
@@ -2,7 +2,7 @@
 
 	<PropertyGroup>
 		<OutputType>Exe</OutputType>
-		<TargetFramework>net6.0</TargetFramework>
+		<TargetFramework>net7.0</TargetFramework>
 		<ImplicitUsings>enable</ImplicitUsings>
 		<Nullable>enable</Nullable>
 	</PropertyGroup>
diff --git a/vs4win/Chapter03/BooleanOperators/BooleanOperators.csproj b/vs4win/Chapter03/BooleanOperators/BooleanOperators.csproj
index ebe527c..05635b2 100644
--- a/vs4win/Chapter03/BooleanOperators/BooleanOperators.csproj
+++ b/vs4win/Chapter03/BooleanOperators/BooleanOperators.csproj
@@ -2,7 +2,7 @@
 
 	<PropertyGroup>
 		<OutputType>Exe</OutputType>
-		<TargetFramework>net6.0</TargetFramework>
+		<TargetFramework>net7.0</TargetFramework>
 		<ImplicitUsings>enable</ImplicitUsings>
 		<Nullable>enable</Nullable>
 	</PropertyGroup>
diff --git a/vs4win/Chapter03/CastingConverting/CastingConverting.csproj b/vs4win/Chapter03/CastingConverting/CastingConverting.csproj
index ebe527c..05635b2 100644
--- a/vs4win/Chapter03/CastingConverting/CastingConverting.csproj
+++ b/vs4win/Chapter03/CastingConverting/CastingConverting.csproj
@@ -2,7 +2,7 @@
 
 	<PropertyGroup>
 		<OutputType>Exe</OutputType>
-		<TargetFramework>net6.0</TargetFramework>
+		<TargetFramework>net7.0</TargetFramework>
 		<ImplicitUsings>enable</ImplicitUsings>
 		<Nullable>enable</Nullable>
 	</PropertyGroup>
diff --git a/vs4win/Chapter03/Ch03Ex02LoopsAndOverflow/Ch03Ex02LoopsAndOverflow.csproj b/vs4win/Chapter03/Ch03Ex02LoopsAndOverflow/Ch03Ex02LoopsAndOverflow.csproj
index ebe527c..05635b2 100644
--- a/vs4win/Chapter03/Ch03Ex02LoopsAndOverflow/Ch03Ex02LoopsAndOverflow.csproj
+++ b/vs4win/Chapter03/Ch03Ex02LoopsAndOverflow/Ch03Ex02LoopsAndOverflow.csproj
@@ -2,7 +2,7 @@
 
 	<PropertyGroup>
 		<OutputType>Exe</OutputType>
-		<TargetFramework>net6.0</TargetFramework>
+		<TargetFramework>net7.0</TargetFramework>
 		<ImplicitUsings>enable</ImplicitUsings>
 		<Nullable>enable</Nullable>
 	</PropertyGroup>
diff --git a/vs4win/Chapter03/Ch03Ex03FizzBuzz/Ch03Ex03FizzBuzz.csproj b/vs4win/Chapter03/Ch03Ex03FizzBuzz/Ch03Ex03FizzBuzz.csproj
index ebe527c..05635b2 100644
--- a/vs4win/Chapter03/Ch03Ex03FizzBuzz/Ch03Ex03FizzBuzz.csproj
+++ b/vs4win/Chapter03/Ch03Ex03FizzBuzz/Ch03Ex03FizzBuzz.csproj
@@ -2,7 +2,7 @@
 
 	<PropertyGroup>
 		<OutputType>Exe</OutputType>
-		<TargetFramework>net6.0</TargetFramework>
+		<TargetFramework>net7.0</TargetFramework>
 		<ImplicitUsings>enable</ImplicitUsings>
 		<Nullable>enable</Nullable>
 	</PropertyGroup>
diff --git a/vs4win/Chapter03/Ch03Ex04Exceptions/Ch03Ex04Exceptions.csproj b/vs4win/Chapter03/Ch03Ex04Exceptions/Ch03Ex04Exceptions.csproj
index ebe527c..05635b2 100644
--- a/vs4win/Chapter03/Ch03Ex04Exceptions/Ch03Ex04Exceptions.csproj
+++ b/vs4win/Chapter03/Ch03Ex04Exceptions/Ch03Ex04Exceptions.csproj
@@ -2,7 +2,7 @@
 
 	<PropertyGroup>
 		<OutputType>Exe</OutputType>
-		<TargetFramework>net6.0</TargetFramework>
+		<TargetFramework>net7.0</TargetFramework>
 		<ImplicitUsings>enable</ImplicitUsings>
 		<Nullable>enable</Nullable>
 	</PropertyGroup>
diff --git a/vs4win/Chapter03/Ch03Ex05Operators/Ch03Ex05Operators.csproj b/vs4win/Chapter03/Ch03Ex05Operators/Ch03Ex05Operators.csproj
index ebe527c..05635b2 100644
--- a/vs4win/Chapter03/Ch03Ex05Operators/Ch03Ex05Operators.csproj
+++ b/vs4win/Chapter03/Ch03Ex05Operators/Ch03Ex05Operators.csproj
@@ -2,7 +2,7 @@
 
 	<PropertyGroup>
 		<OutputType>Exe</OutputType>
-		<TargetFramework>net6.0</TargetFramework>
+		<TargetFramework>net7.0</TargetFramework>
 		<ImplicitUsings>enable</ImplicitUsings>
 		<Nullable>enable</Nullable>
 	</PropertyGroup>
diff --git a/vs4win/Chapter03/CheckingForOverflow/CheckingForOverflow.csproj b/vs4win/Chapter03/CheckingForOverflow/CheckingForOverflow.csproj
index ebe527c..05635b2 100644
--- a/vs4win/Chapter03/CheckingForOverflow/CheckingForOverflow.csproj
+++ b/vs4win/Chapter03/CheckingForOverflow/CheckingForOverflow.csproj
@@ -2,7 +2,7 @@
 
 	<PropertyGroup>
 		<OutputType>Exe</OutputType>
-		<TargetFramework>net6.0</TargetFramework>
+		<TargetFramework>net7.0</TargetFramework>
 		<ImplicitUsings>enable</ImplicitUsings>
 		<Nullable>enable</Nullable>
 	</PropertyGroup>
diff --git a/vs4win/Chapter03/HandlingExceptions/HandlingExceptions.csproj b/vs4win/Chapter03/HandlingExceptions/HandlingExceptions.csproj
index ebe527c..05635b2 100644
--- a/vs4win/Chapter03/HandlingExceptions/HandlingExceptions.csproj
+++ b/vs4win/Chapter03/HandlingExceptions/HandlingExceptions.csproj
@@ -2,7 +2,7 @@
 
 	<PropertyGroup>
 		<OutputType>Exe</OutputType>
-		<TargetFramework>net6.0</TargetFramework>
+		<TargetFramework>net7.0</TargetFramework>
 		<ImplicitUsings>enable</ImplicitUsings>
 		<Nullable>enable</Nullable>
 	</PropertyGroup>
diff --git a/vs4win/Chapter03/IterationStatements/IterationStatements.csproj b/vs4win/Chapter03/IterationStatements/IterationStatements.csproj
index 3f419b7..cd63b28 100644
--- a/vs4win/Chapter03/IterationStatements/IterationStatements.csproj
+++ b/vs4win/Chapter03/IterationStatements/IterationStatements.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net7.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
   </PropertyGroup>
diff --git a/vs4win/Chapter03/Operators/Operators.csproj b/vs4win/Chapter03/Operators/Operators.csproj
index 3f419b7..cd63b28 100644
--- a/vs4win/Chapter03/Operators/Operators.csproj
+++ b/vs4win/Chapter03/Operators/Operators.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net7.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
   </PropertyGroup>
diff --git a/vs4win/Chapter03/SelectionStatements/SelectionStatements.csproj b/vs4win/Chapter03/SelectionStatements/SelectionStatements.csproj
index 3f419b7..cd63b28 100644
--- a/vs4win/Chapter03/SelectionStatements/SelectionStatements.csproj
+++ b/vs4win/Chapter03/SelectionStatements/SelectionStatements.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net7.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
   </PropertyGroup>
diff --git a/vscode/Chapter01-vscode/AboutMyEnvironment/AboutMyEnvironment.csproj b/vscode/Chapter01-vscode/AboutMyEnvironment/AboutMyEnvironment.csproj
index 74abf5c..f02677b 100644
--- a/vscode/Chapter01-vscode/AboutMyEnvironment/AboutMyEnvironment.csproj
+++ b/vscode/Chapter01-vscode/AboutMyEnvironment/AboutMyEnvironment.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net7.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
   </PropertyGroup>
diff --git a/vscode/Chapter01-vscode/HelloCS/HelloCS.csproj b/vscode/Chapter01-vscode/HelloCS/HelloCS.csproj
index 74abf5c..f02677b 100644
--- a/vscode/Chapter01-vscode/HelloCS/HelloCS.csproj
+++ b/vscode/Chapter01-vscode/HelloCS/HelloCS.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net7.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
   </PropertyGroup>
diff --git a/vscode/Chapter02/Arguments/Arguments.csproj b/vscode/Chapter02/Arguments/Arguments.csproj
index df2ad2f..b0fc631 100644
--- a/vscode/Chapter02/Arguments/Arguments.csproj
+++ b/vscode/Chapter02/Arguments/Arguments.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net7.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
   </PropertyGroup>
diff --git a/vscode/Chapter02/AsyncConsole/AsyncConsole.csproj b/vscode/Chapter02/AsyncConsole/AsyncConsole.csproj
index df2ad2f..b0fc631 100644
--- a/vscode/Chapter02/AsyncConsole/AsyncConsole.csproj
+++ b/vscode/Chapter02/AsyncConsole/AsyncConsole.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net7.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
   </PropertyGroup>
diff --git a/vscode/Chapter02/Ch02Ex03Numbers/Ch02Ex03Numbers.csproj b/vscode/Chapter02/Ch02Ex03Numbers/Ch02Ex03Numbers.csproj
index ebe527c..05635b2 100644
--- a/vscode/Chapter02/Ch02Ex03Numbers/Ch02Ex03Numbers.csproj
+++ b/vscode/Chapter02/Ch02Ex03Numbers/Ch02Ex03Numbers.csproj
@@ -2,7 +2,7 @@
 
 	<PropertyGroup>
 		<OutputType>Exe</OutputType>
-		<TargetFramework>net6.0</TargetFramework>
+		<TargetFramework>net7.0</TargetFramework>
 		<ImplicitUsings>enable</ImplicitUsings>
 		<Nullable>enable</Nullable>
 	</PropertyGroup>
diff --git a/vscode/Chapter02/Formatting/Formatting.csproj b/vscode/Chapter02/Formatting/Formatting.csproj
index ebe527c..05635b2 100644
--- a/vscode/Chapter02/Formatting/Formatting.csproj
+++ b/vscode/Chapter02/Formatting/Formatting.csproj
@@ -2,7 +2,7 @@
 
 	<PropertyGroup>
 		<OutputType>Exe</OutputType>
-		<TargetFramework>net6.0</TargetFramework>
+		<TargetFramework>net7.0</TargetFramework>
 		<ImplicitUsings>enable</ImplicitUsings>
 		<Nullable>enable</Nullable>
 	</PropertyGroup>
diff --git a/vscode/Chapter02/Numbers/Numbers.csproj b/vscode/Chapter02/Numbers/Numbers.csproj
index 74abf5c..f02677b 100644
--- a/vscode/Chapter02/Numbers/Numbers.csproj
+++ b/vscode/Chapter02/Numbers/Numbers.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net7.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
   </PropertyGroup>
diff --git a/vscode/Chapter02/Variables/Variables.csproj b/vscode/Chapter02/Variables/Variables.csproj
index 74abf5c..f02677b 100644
--- a/vscode/Chapter02/Variables/Variables.csproj
+++ b/vscode/Chapter02/Variables/Variables.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net7.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
   </PropertyGroup>
diff --git a/vscode/Chapter02/Vocabulary/Vocabulary.csproj b/vscode/Chapter02/Vocabulary/Vocabulary.csproj
index 741fa15..6d3ae66 100644
--- a/vscode/Chapter02/Vocabulary/Vocabulary.csproj
+++ b/vscode/Chapter02/Vocabulary/Vocabulary.csproj
@@ -2,7 +2,7 @@
 
 	<PropertyGroup>
 		<OutputType>Exe</OutputType>
-		<TargetFramework>net6.0</TargetFramework>
+		<TargetFramework>net7.0</TargetFramework>
 		<ImplicitUsings>enable</ImplicitUsings>
 		<Nullable>enable</Nullable>
 	</PropertyGroup>