Add the breaking changes line to Proguard.

Author: tommyettinger

gradle.properties

@@ -1,6 +1,6 @@
 org.gradle.daemon=false
 org.gradle.jvmargs=-Xms512M -Xmx1G -Dfile.encoding=UTF-8 -Dconsole.encoding=UTF-8
-liftoffVersion=1.13.5.0
+liftoffVersion=1.13.5.1-SNAPSHOT
 kotlinVersion=2.1.21
 gdxVersion=1.13.5
 lmlVersion=1.10.1.12.1

src/main/kotlin/gdx/liftoff/config/Configuration.kt

@@ -38,7 +38,7 @@ import java.lang.NumberFormatException
 @Suppress("unused") // Fields accessed via reflection.
 class Configuration {
   companion object {
-    const val VERSION = "1.13.5.0"
+    const val VERSION = "1.13.5.1-SNAPSHOT"
     const val WIDTH = 600
     const val HEIGHT = 700
     const val PREFERENCES_PATH = "gdx-liftoff-prefs"

src/main/resources/generator/android/proguard-rules.pro

@@ -30,6 +30,7 @@
 # Needed by the Box2D official extension.
 -keepclassmembers class com.badlogic.gdx.physics.box2d.World {
    boolean contactFilter(long, long);
+   boolean getUseDefaultContactFilter();
    void    beginContact(long);
    void    endContact(long);
    void    preSolve(long, long);

src/main/resources/ui-data/defaults.properties

@@ -1,4 +1,4 @@
-liftoffVersion=1.13.5.0
+liftoffVersion=1.13.5.1-SNAPSHOT
 projectNameDefault=YourProjectName
 packageNameDefault=io.github.some_example_name
 mainClassNameDefault=Main