[native-build-tools-7h1.11] Docs: Changelog entry

Add Unreleased feature: Auto-fallback to JVM JUnit when -H:+CompatibilityMode is enabled.

Details:

- Disables native-image JUnit when the flag is present; JVM tests run automatically.

- Detection via build arguments and NATIVE_IMAGE_OPTIONS env var.

- Gradle: gate JUnit wiring, skip native test build/run via onlyIf, once-per-build info log.

- Maven: short-circuit native test goal after environment setup, once-per-build info log.

- Default behavior unchanged when flag is absent.

Author: vjovanov

docs/src/docs/asciidoc/changelog.adoc

@@ -1,6 +1,21 @@
 [[changelog]]
 == Changelog
 
+== Unreleased
+
+- Feature – Auto-fallback to JVM JUnit when -H:+CompatibilityMode is enabled
++
+* When -H:+CompatibilityMode is present in native-image options, native-image JUnit tests are disabled and JVM tests run automatically.
+* Detection sources: native-image build arguments and NATIVE_IMAGE_OPTIONS environment variable.
+* Gradle: test image wiring for the native JUnit launcher and JUnit Platform feature is gated; native test image build/run tasks are skipped via onlyIf; once-per-build log:
++
+“Compatibility Mode detected (-H:+CompatibilityMode); skipping native-image test build/run, JVM tests will run instead.”
+* Maven: native test goal short-circuits after environment setup; once-per-build log:
++
+“Compatibility Mode detected (-H:+CompatibilityMode); skipping native-image test goal, JVM tests will run instead.”
+* Default behavior unchanged when the flag is absent (native-image JUnit path continues as before).
+* See plugin READMEs for details.
+
 == Release 0.11.3
 
 - Fixed use of argument file when the temporary directory is not on the same drive as the project
@@ -449,7 +464,6 @@ graalvmNative {
   }
 }
 ----
-
 - The `nativeBuild` task has been renamed to `nativeCompile`.
 - The `nativeTestBuild` task has been renamed to `nativeTestCompile`.