Update for Delphi 12.1 Athens because Embarcadero forces me to do this 👎 Can't update to Delphi 12.2 which is already released because unfortunately the Community Edition is lagging behind, intentionally I believe 👎👎 Still need to do DPI tests, it's not clear to me if and how the badly documented DPI releated changes to TFont affect our code 👎👎👎 See https://docwiki.embarcadero.com/Libraries/Athens/en/Vcl.Graphics.TFont.IsDPIRelated for example.

Opening the updated project files with Delphi 11.3 anyways seems to work fine.

ISHelp/ISHelpGen/ISHelpGen.dproj

@@ -7,8 +7,9 @@
         <TargetedPlatforms>1</TargetedPlatforms>
         <AppType>Console</AppType>
         <FrameworkType>None</FrameworkType>
-        <ProjectVersion>19.5</ProjectVersion>
+        <ProjectVersion>20.1</ProjectVersion>
         <Platform Condition="'$(Platform)'==''">Win32</Platform>
+        <ProjectName Condition="'$(ProjectName)'==''">ISHelpGen</ProjectName>
     </PropertyGroup>
     <PropertyGroup Condition="'$(Config)'=='Base' or '$(Base)'!=''">
         <Base>true</Base>

ISHelp/isetup.xml

@@ -155,7 +155,7 @@ Includes integrated support for "deflate", bzip2, and 7-Zip LZMA/LZMA2 file <lin
 
 <li>Full source code is available from <extlink href="https://github.com/jrsoftware/issrc">GitHub</extlink>.</li>
 
-<li>Tiny footprint: only 1.75 mB overhead with all features included.</li>
+<li>Tiny footprint: only 1.77 mB overhead with all features included.</li>
 
 <li>All features are fully documented.</li>
 

Projects/Compil32.dproj

@@ -7,8 +7,9 @@
         <TargetedPlatforms>1</TargetedPlatforms>
         <AppType>Application</AppType>
         <FrameworkType>VCL</FrameworkType>
-        <ProjectVersion>19.5</ProjectVersion>
+        <ProjectVersion>20.1</ProjectVersion>
         <Platform Condition="'$(Platform)'==''">Win32</Platform>
+        <ProjectName Condition="'$(ProjectName)'==''">Compil32</ProjectName>
     </PropertyGroup>
     <PropertyGroup Condition="'$(Config)'=='Base' or '$(Base)'!=''">
         <Base>true</Base>

Projects/ISCC.dproj

@@ -7,8 +7,9 @@
         <TargetedPlatforms>1</TargetedPlatforms>
         <AppType>Console</AppType>
         <FrameworkType>None</FrameworkType>
-        <ProjectVersion>19.5</ProjectVersion>
+        <ProjectVersion>20.1</ProjectVersion>
         <Platform Condition="'$(Platform)'==''">Win32</Platform>
+        <ProjectName Condition="'$(ProjectName)'==''">ISCC</ProjectName>
     </PropertyGroup>
     <PropertyGroup Condition="'$(Config)'=='Base' or '$(Base)'!=''">
         <Base>true</Base>

Projects/ISCmplr.dproj

@@ -7,8 +7,9 @@
         <TargetedPlatforms>1</TargetedPlatforms>
         <AppType>Library</AppType>
         <FrameworkType>VCL</FrameworkType>
-        <ProjectVersion>19.5</ProjectVersion>
+        <ProjectVersion>20.1</ProjectVersion>
         <Platform Condition="'$(Platform)'==''">Win32</Platform>
+        <ProjectName Condition="'$(ProjectName)'==''">ISCmplr</ProjectName>
     </PropertyGroup>
     <PropertyGroup Condition="'$(Config)'=='Base' or '$(Base)'!=''">
         <Base>true</Base>

Projects/ISPP.dproj

@@ -7,8 +7,9 @@
         <TargetedPlatforms>1</TargetedPlatforms>
         <AppType>Library</AppType>
         <FrameworkType>None</FrameworkType>
-        <ProjectVersion>19.5</ProjectVersion>
+        <ProjectVersion>20.1</ProjectVersion>
         <Platform Condition="'$(Platform)'==''">Win32</Platform>
+        <ProjectName Condition="'$(ProjectName)'==''">ISPP</ProjectName>
     </PropertyGroup>
     <PropertyGroup Condition="'$(Config)'=='Base' or '$(Base)'!=''">
         <Base>true</Base>

Projects/Setup.dproj

@@ -7,8 +7,9 @@
         <TargetedPlatforms>1</TargetedPlatforms>
         <AppType>Application</AppType>
         <FrameworkType>VCL</FrameworkType>
-        <ProjectVersion>19.5</ProjectVersion>
+        <ProjectVersion>20.1</ProjectVersion>
         <Platform Condition="'$(Platform)'==''">Win32</Platform>
+        <ProjectName Condition="'$(ProjectName)'==''">Setup</ProjectName>
     </PropertyGroup>
     <PropertyGroup Condition="'$(Config)'=='Base' or '$(Base)'!=''">
         <Base>true</Base>

Projects/SetupLdr.dproj

@@ -7,8 +7,9 @@
         <TargetedPlatforms>1</TargetedPlatforms>
         <AppType>Application</AppType>
         <FrameworkType>None</FrameworkType>
-        <ProjectVersion>19.5</ProjectVersion>
+        <ProjectVersion>20.1</ProjectVersion>
         <Platform Condition="'$(Platform)'==''">Win32</Platform>
+        <ProjectName Condition="'$(ProjectName)'==''">SetupLdr</ProjectName>
     </PropertyGroup>
     <PropertyGroup Condition="'$(Config)'=='Base' or '$(Base)'!=''">
         <Base>true</Base>

README.md

@@ -38,7 +38,7 @@ Getting Started
 
 2. **Install Embarcadero Delphi**
 
-   We compile all of Inno Setup's projects under Delphi 11.3 Alexandria.
+   We compile all of Inno Setup's projects under Delphi 12.1 Athens with Patch 1 installed.
 
    There's a free version of Delphi available called the Community Edition.
    See https://www.embarcadero.com/products/delphi/starter/free-download.

whatsnew.htm

@@ -32,6 +32,7 @@ For conditions of distribution and use, see <a href="files/is/license.txt">LICEN
 <p><a name="6.4.2"></a><span class="ver">6.4.2-dev </span><span class="date">(?)</span></p>
 <ul>
   <li>Added <tt>[Setup]</tt> section directive <tt>CloseApplicationsFilterExcludes</tt>.</li>
+  <li>Inno Setup is now built using Delphi 12.1 Athens instead of Delphi 11.3 Alexandria.</li>
 </ul>
 
 <p><a name="6.4.1"></a><span class="ver">6.4.1 </span><span class="date">(2025-02-12)</span></p>