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exercism · Dec 31, 2024 · ef90893 · ef90893
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diff --git a/bin/add-practice-exercise.ps1 b/bin/add-practice-exercise.ps1
@@ -32,7 +32,7 @@ $PSNativeCommandUseErrorActionPreference = $true
 $exerciseName = (Get-Culture).TextInfo.ToTitleCase($Exercise).Replace("-", "")
 $exerciseDir = "exercises/practice/${Exercise}"
 $project = "${exerciseDir}/${ExerciseName}.csproj"
-& dotnet new xunit --force -lang "C#" --target-framework-override net8.0 -o $exerciseDir -n $ExerciseName
+& dotnet new xunit --force -lang "C#" --target-framework-override net9.0 -o $exerciseDir -n $ExerciseName
 & dotnet sln exercises/Exercises.sln add $project
 
 # Update project packages

diff --git a/exercises/concept/annalyns-infiltration/AnnalynsInfiltration.csproj b/exercises/concept/annalyns-infiltration/AnnalynsInfiltration.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/concept/attack-of-the-trolls/AttackOfTheTrolls.csproj b/exercises/concept/attack-of-the-trolls/AttackOfTheTrolls.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/concept/authentication-system/AuthenticationSystem.csproj b/exercises/concept/authentication-system/AuthenticationSystem.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/concept/beauty-salon-goes-global/BeautySalonGoesGlobal.csproj b/exercises/concept/beauty-salon-goes-global/BeautySalonGoesGlobal.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/concept/bird-watcher/BirdWatcher.csproj b/exercises/concept/bird-watcher/BirdWatcher.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/concept/booking-up-for-beauty/BookingUpForBeauty.csproj b/exercises/concept/booking-up-for-beauty/BookingUpForBeauty.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/concept/building-telemetry/BuildingTelemetry.csproj b/exercises/concept/building-telemetry/BuildingTelemetry.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/concept/calculator-conundrum/CalculatorConundrum.csproj b/exercises/concept/calculator-conundrum/CalculatorConundrum.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/concept/cars-assemble/CarsAssemble.csproj b/exercises/concept/cars-assemble/CarsAssemble.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/concept/developer-privileges/DeveloperPrivileges.csproj b/exercises/concept/developer-privileges/DeveloperPrivileges.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/concept/elons-toys/ElonsToys.csproj b/exercises/concept/elons-toys/ElonsToys.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/concept/faceid-2/Faceid2.csproj b/exercises/concept/faceid-2/Faceid2.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/concept/football-match-reports/FootballMatchReports.csproj b/exercises/concept/football-match-reports/FootballMatchReports.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
     <Nullable>enable</Nullable>
   </PropertyGroup>
 

diff --git a/exercises/concept/high-school-sweethearts/HighSchoolSweethearts.csproj b/exercises/concept/high-school-sweethearts/HighSchoolSweethearts.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/concept/hyper-optimized-telemetry/HyperOptimizedTelemetry.csproj b/exercises/concept/hyper-optimized-telemetry/HyperOptimizedTelemetry.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/concept/hyperia-forex/HyperiaForex.csproj b/exercises/concept/hyperia-forex/HyperiaForex.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/concept/hyperinflation-hits-hyperia/HyperinflationHitsHyperia.csproj b/exercises/concept/hyperinflation-hits-hyperia/HyperinflationHitsHyperia.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/concept/instruments-of-texas/InstrumentsOfTexas.csproj b/exercises/concept/instruments-of-texas/InstrumentsOfTexas.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/concept/interest-is-interesting/InterestIsInteresting.csproj b/exercises/concept/interest-is-interesting/InterestIsInteresting.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/concept/international-calling-connoisseur/InternationalCallingConnoisseur.csproj b/exercises/concept/international-calling-connoisseur/InternationalCallingConnoisseur.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/concept/land-grab-in-space/LandGrabInSpace.csproj b/exercises/concept/land-grab-in-space/LandGrabInSpace.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/concept/log-analysis/LogAnalysis.csproj b/exercises/concept/log-analysis/LogAnalysis.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/concept/log-levels/LogLevels.csproj b/exercises/concept/log-levels/LogLevels.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/concept/logs-logs-logs/LogsLogsLogs.csproj b/exercises/concept/logs-logs-logs/LogsLogsLogs.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/concept/lucians-luscious-lasagna/LuciansLusciousLasagna.csproj b/exercises/concept/lucians-luscious-lasagna/LuciansLusciousLasagna.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/concept/need-for-speed/NeedForSpeed.csproj b/exercises/concept/need-for-speed/NeedForSpeed.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/concept/object-relational-mapping/ObjectRelationalMapping.csproj b/exercises/concept/object-relational-mapping/ObjectRelationalMapping.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/concept/orm-in-one-go/OrmInOneGo.csproj b/exercises/concept/orm-in-one-go/OrmInOneGo.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/concept/parsing-log-files/ParsingLogFiles.csproj b/exercises/concept/parsing-log-files/ParsingLogFiles.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/concept/phone-number-analysis/PhoneNumberAnalysis.csproj b/exercises/concept/phone-number-analysis/PhoneNumberAnalysis.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/concept/red-vs-blue-darwin-style/RedVsBlueDarwinStyle.csproj b/exercises/concept/red-vs-blue-darwin-style/RedVsBlueDarwinStyle.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/concept/remote-control-cleanup/RemoteControlCleanup.csproj b/exercises/concept/remote-control-cleanup/RemoteControlCleanup.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/concept/remote-control-competition/RemoteControlCompetition.csproj b/exercises/concept/remote-control-competition/RemoteControlCompetition.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/concept/roll-the-die/RollTheDie.csproj b/exercises/concept/roll-the-die/RollTheDie.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/concept/secure-munchester-united/SecureMunchesterUnited.csproj b/exercises/concept/secure-munchester-united/SecureMunchesterUnited.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/concept/squeaky-clean/SqueakyClean.csproj b/exercises/concept/squeaky-clean/SqueakyClean.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/concept/the-weather-in-deather/TheWeatherInDeather.csproj b/exercises/concept/the-weather-in-deather/TheWeatherInDeather.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/concept/tim-from-marketing/TimFromMarketing.csproj b/exercises/concept/tim-from-marketing/TimFromMarketing.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
     <Nullable>enable</Nullable>
   </PropertyGroup>
 

diff --git a/exercises/concept/tracks-on-tracks-on-tracks/TracksOnTracksOnTracks.csproj b/exercises/concept/tracks-on-tracks-on-tracks/TracksOnTracksOnTracks.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/concept/weighing-machine/WeighingMachine.csproj b/exercises/concept/weighing-machine/WeighingMachine.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/concept/wizards-and-warriors-2/WizardsAndWarriors2.csproj b/exercises/concept/wizards-and-warriors-2/WizardsAndWarriors2.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/concept/wizards-and-warriors/WizardsAndWarriors.csproj b/exercises/concept/wizards-and-warriors/WizardsAndWarriors.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/exercises/practice/accumulate/Accumulate.csproj b/exercises/practice/accumulate/Accumulate.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>