Upgrade pgcore and prepare release for java 26 support

README.md

@@ -108,7 +108,7 @@ buildscript {
         mavenCentral()
     }
     dependencies {
-        classpath 'com.guardsquare:proguard-gradle:7.8.2'
+        classpath 'com.guardsquare:proguard-gradle:7.9.0'
     }
 }
 ```

docs/md/manual/FAQ.md

@@ -68,9 +68,9 @@ Yes, you can. **ProGuard** itself is distributed under the GPL, but this
 doesn't affect the programs that you process. Your code remains yours, and its
 license can remain the same.
 
-## Does ProGuard work with Java 2, 5,..., 25? {: #jdk1.4}
+## Does ProGuard work with Java 2, 5,..., 26? {: #jdk1.4}
 
-Yes, **ProGuard** supports all JDKs from 1.1 up to and including 25. Java 2
+Yes, **ProGuard** supports all JDKs from 1.1 up to and including 26. Java 2
 introduced some small differences in the class file format. Java 5 added
 attributes for generics and for annotations. Java 6 introduced optional
 preverification attributes. Java 7 made preverification obligatory and

docs/md/manual/home.md

@@ -1,4 +1,4 @@
-Welcome to the manual for **ProGuard** version 7.8.2 ([what's new?](releasenotes.md)).
+Welcome to the manual for **ProGuard** version 7.9.0 ([what's new?](releasenotes.md)).
 
 ProGuard is an open-sourced Java class file shrinker, optimizer, obfuscator, and
 preverifier. As a result, ProGuard processed applications and libraries are smaller and faster.

docs/md/manual/releasenotes.md

@@ -4,6 +4,10 @@
 
 - Add support for Kotlin 2.3.
 
+### Java support 
+
+- Add support for Java 26.
+
 ## Version 7.8.2 
 
 ### Bugfixes 

examples/application-kotlin/build.gradle

@@ -7,7 +7,7 @@ buildscript {
         google()
     }
     dependencies {
-        classpath 'com.guardsquare:proguard-gradle:7.8.2'
+        classpath 'com.guardsquare:proguard-gradle:7.9.0'
     }
 }
 

examples/application/build.gradle

@@ -7,7 +7,7 @@ buildscript {
         google()
     }
     dependencies {
-        classpath 'com.guardsquare:proguard-gradle:7.8.2'
+        classpath 'com.guardsquare:proguard-gradle:7.9.0'
     }
 }
 
@@ -35,7 +35,7 @@ ext.baseCoordinates = "${project.name}-${project.version}"
 
 java {
     toolchain {
-        languageVersion = JavaLanguageVersion.of(22)
+        languageVersion = JavaLanguageVersion.of(8)
     }
 }
 

examples/spring-boot/build.gradle

@@ -7,7 +7,7 @@ buildscript {
         google()
     }
     dependencies {
-        classpath 'com.guardsquare:proguard-gradle:7.8.2'
+        classpath 'com.guardsquare:proguard-gradle:7.9.0'
     }
 }
 

gradle/libs.versions.toml

@@ -9,7 +9,7 @@ kotest = "6.1.4"
 kotlin = "2.2.0"
 log4j = "2.25.3"
 mockk = "1.13.13"
-proguardCore = "9.3.1"
+proguardCore = "9.3.2"
 kotlin-compile-testing = "0.8.0"
 
 [libraries]