diff --git a/.github/workflows/npm_release.yml b/.github/workflows/npm_release.yml
index 148a7f1b0..b5618f821 100644
--- a/.github/workflows/npm_release.yml
+++ b/.github/workflows/npm_release.yml
@@ -8,7 +8,7 @@ on:
 env:
   NPM_TAG: "next"
   EMULATOR_NAME: "runtime-emu"
-  NDK_VERSION: r23c
+  NDK_VERSION: r27
   ANDROID_API: 29
   ANDROID_ABI: x86_64
   NDK_ARCH: darwin
diff --git a/.github/workflows/pull_request.yml b/.github/workflows/pull_request.yml
index 5bdfbb64f..b40cab538 100644
--- a/.github/workflows/pull_request.yml
+++ b/.github/workflows/pull_request.yml
@@ -4,7 +4,7 @@ on:
 env:
   NPM_TAG: "pr"
   EMULATOR_NAME: "runtime-emu"
-  NDK_VERSION: r23c
+  NDK_VERSION: r27
   ANDROID_API: 29
   ANDROID_ABI: x86_64
   NDK_ARCH: darwin
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
index 249e5832f..2c3521197 100644
Binary files a/gradle/wrapper/gradle-wrapper.jar and b/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 070cb702f..09523c0e5 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,5 +1,7 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.6-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.9-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
diff --git a/gradlew b/gradlew
index a69d9cb6c..f5feea6d6 100755
--- a/gradlew
+++ b/gradlew
@@ -15,6 +15,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
+# SPDX-License-Identifier: Apache-2.0
+#
 
 ##############################################################################
 #
@@ -55,7 +57,7 @@
 #       Darwin, MinGW, and NonStop.
 #
 #   (3) This script is generated from the Groovy template
-#       https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       https://github.com/gradle/gradle/blob/HEAD/platforms/jvm/plugins-application/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
 #       within the Gradle project.
 #
 #       You can find Gradle at https://github.com/gradle/gradle/.
@@ -80,13 +82,12 @@ do
     esac
 done
 
-APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
-
-APP_NAME="Gradle"
+# This is normally unused
+# shellcheck disable=SC2034
 APP_BASE_NAME=${0##*/}
-
-# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
+APP_HOME=$( cd -P "${APP_HOME:-./}" > /dev/null && printf '%s
+' "$PWD" ) || exit
 
 # Use the maximum available, or set MAX_FD != -1 to use that value.
 MAX_FD=maximum
@@ -133,22 +134,29 @@ location of your Java installation."
     fi
 else
     JAVACMD=java
-    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+    if ! command -v java >/dev/null 2>&1
+    then
+        die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
 
 Please set the JAVA_HOME variable in your environment to match the
 location of your Java installation."
+    fi
 fi
 
 # Increase the maximum file descriptors if we can.
 if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
     case $MAX_FD in #(
       max*)
+        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
         MAX_FD=$( ulimit -H -n ) ||
             warn "Could not query maximum file descriptor limit"
     esac
     case $MAX_FD in  #(
       '' | soft) :;; #(
       *)
+        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
         ulimit -n "$MAX_FD" ||
             warn "Could not set maximum file descriptor limit to $MAX_FD"
     esac
@@ -193,11 +201,15 @@ if "$cygwin" || "$msys" ; then
     done
 fi
 
-# Collect all arguments for the java command;
-#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
-#     shell script including quotes and variable substitutions, so put them in
-#     double quotes to make sure that they get re-expanded; and
-#   * put everything else in single quotes, so that it's not re-expanded.
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Collect all arguments for the java command:
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
+#     and any embedded shellness will be escaped.
+#   * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be
+#     treated as '${Hostname}' itself on the command line.
 
 set -- \
         "-Dorg.gradle.appname=$APP_BASE_NAME" \
diff --git a/gradlew.bat b/gradlew.bat
index f127cfd49..9d21a2183 100644
--- a/gradlew.bat
+++ b/gradlew.bat
@@ -13,6 +13,8 @@
 @rem See the License for the specific language governing permissions and
 @rem limitations under the License.
 @rem
+@rem SPDX-License-Identifier: Apache-2.0
+@rem
 
 @if "%DEBUG%"=="" @echo off
 @rem ##########################################################################
@@ -26,6 +28,7 @@ if "%OS%"=="Windows_NT" setlocal
 
 set DIRNAME=%~dp0
 if "%DIRNAME%"=="" set DIRNAME=.
+@rem This is normally unused
 set APP_BASE_NAME=%~n0
 set APP_HOME=%DIRNAME%
 
@@ -42,11 +45,11 @@ set JAVA_EXE=java.exe
 %JAVA_EXE% -version >NUL 2>&1
 if %ERRORLEVEL% equ 0 goto execute
 
-echo.
-echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
-echo.
-echo Please set the JAVA_HOME variable in your environment to match the
-echo location of your Java installation.
+echo. 1>&2
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
 
 goto fail
 
@@ -56,11 +59,11 @@ set JAVA_EXE=%JAVA_HOME%/bin/java.exe
 
 if exist "%JAVA_EXE%" goto execute
 
-echo.
-echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
-echo.
-echo Please set the JAVA_HOME variable in your environment to match the
-echo location of your Java installation.
+echo. 1>&2
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
 
 goto fail
 
diff --git a/package.json b/package.json
index 82fdc703c..4f6adf6ca 100644
--- a/package.json
+++ b/package.json
@@ -11,19 +11,19 @@
   ],
   "version_info": {
     "v8": "10.3.22.0",
-    "gradle": "8.4",
-    "gradleAndroid": "8.3.2",
-    "ndk": "r23c",
-    "ndkApiLevel": "17",
-    "minSdk": "17",
-    "compileSdk": "34",
-    "buildTools": "34.0.0",
+    "gradle": "8.7",
+    "gradleAndroid": "8.5.0",
+    "ndk": "r27",
+    "ndkApiLevel": "21",
+    "minSdk": "21",
+    "compileSdk": "35",
+    "buildTools": "35.0.0",
     "kotlin": "2.0.0"
   },
   "// this gradle key is here for backwards compatibility - we'll phase it out slowly...": "",
   "gradle": {
-    "version": "8.4",
-    "android": "8.3.2"
+    "version": "8.7",
+    "android": "8.5.0"
   },
   "scripts": {
     "changelog": "conventional-changelog -p angular -i CHANGELOG.md -s",
diff --git a/test-app/build-tools/android-dts-generator b/test-app/build-tools/android-dts-generator
index 888677203..5d335d00d 160000
--- a/test-app/build-tools/android-dts-generator
+++ b/test-app/build-tools/android-dts-generator
@@ -1 +1 @@
-Subproject commit 888677203a46c99b1ea5139049f9bca4131b9a3e
+Subproject commit 5d335d00d18fe302a287b51b985c8d20ef72d57a
diff --git a/test-app/build-tools/android-metadata-generator/build.gradle b/test-app/build-tools/android-metadata-generator/build.gradle
index 655af1f04..85ca0723e 100644
--- a/test-app/build-tools/android-metadata-generator/build.gradle
+++ b/test-app/build-tools/android-metadata-generator/build.gradle
@@ -2,8 +2,8 @@ apply plugin: 'java'
 apply plugin: 'kotlin'
 
 java {
-    sourceCompatibility = '17'
-    targetCompatibility = '17'
+    sourceCompatibility = JavaVersion.VERSION_17
+    targetCompatibility = JavaVersion.VERSION_17
 }
 
 // todo: check if still needed
diff --git a/test-app/gradle.properties b/test-app/gradle.properties
index 3e0dd8320..485d5fbcc 100644
--- a/test-app/gradle.properties
+++ b/test-app/gradle.properties
@@ -19,10 +19,10 @@ android.enableJetifier=true
 android.useAndroidX=true
 
 # Default versions used throughout the gradle configurations
-NS_DEFAULT_BUILD_TOOLS_VERSION=34.0.0
-NS_DEFAULT_COMPILE_SDK_VERSION=34
-NS_DEFAULT_MIN_SDK_VERSION=17
-NS_DEFAULT_ANDROID_BUILD_TOOLS_VERSION=8.3.2
+NS_DEFAULT_BUILD_TOOLS_VERSION=35.0.0
+NS_DEFAULT_COMPILE_SDK_VERSION=35
+NS_DEFAULT_MIN_SDK_VERSION=21
+NS_DEFAULT_ANDROID_BUILD_TOOLS_VERSION=8.7.0
 
 ns_default_androidx_appcompat_version = 1.5.1
 ns_default_androidx_exifinterface_version = 1.3.7
diff --git a/test-app/gradle/wrapper/gradle-wrapper.properties b/test-app/gradle/wrapper/gradle-wrapper.properties
index e411586a5..67bc648f7 100644
--- a/test-app/gradle/wrapper/gradle-wrapper.properties
+++ b/test-app/gradle/wrapper/gradle-wrapper.properties
@@ -1,5 +1,6 @@
+#Sun Dec 08 19:56:04 AST 2024
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.4-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.9-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
diff --git a/test-app/runtime-binding-generator/build.gradle b/test-app/runtime-binding-generator/build.gradle
index d98d8376b..d7f20b314 100644
--- a/test-app/runtime-binding-generator/build.gradle
+++ b/test-app/runtime-binding-generator/build.gradle
@@ -7,8 +7,8 @@ dependencies {
 }
 
 java {
-    sourceCompatibility = '17'
-    targetCompatibility = '17'
+    sourceCompatibility = JavaVersion.VERSION_17
+    targetCompatibility = JavaVersion.VERSION_17
 }
 
 // Disable compilation tasks as these are compiled *with* the runtime and not separately
diff --git a/test-app/runtime/CMakeLists.txt b/test-app/runtime/CMakeLists.txt
index 14e93ea11..c0d2fba8e 100644
--- a/test-app/runtime/CMakeLists.txt
+++ b/test-app/runtime/CMakeLists.txt
@@ -18,7 +18,7 @@ endif (CCACHE_FOUND AND (USE_CCACHE))
 # "-DANDROID_STL=c++_static" is just not enough for clang++ to find some libraries in the ndk
 MESSAGE(STATUS "## ANDROID_NDK_ROOT: " ${ANDROID_NDK_ROOT})
 
-set(COMMON_CMAKE_ARGUMENTS "-std=c++17 -Werror -Wno-unused-result -mstackrealign -fexceptions -fno-builtin-stpcpy -fno-rtti -DV8_31BIT_SMIS_ON_64BIT_ARCH -DV8_31BIT_SMIS_ON_64BIT_ARCH -DV8_ENABLE_REGEXP_INTERPRETER_THREADED_DISPATCH -DV8_EMBEDDED_BUILTINS")
+set(COMMON_CMAKE_ARGUMENTS "-std=c++17 -Werror -Wno-unused-result -mstackrealign -fexceptions -fno-builtin-stpcpy -fno-rtti -DV8_31BIT_SMIS_ON_64BIT_ARCH -DV8_31BIT_SMIS_ON_64BIT_ARCH -DV8_ENABLE_REGEXP_INTERPRETER_THREADED_DISPATCH -DV8_EMBEDDED_BUILTINS  -Wno-vla-extension -Wno-deprecated")
 
 if("${ANDROID_ABI}" MATCHES "arm64-v8a$" OR "${ANDROID_ABI}" MATCHES "x86_64$")
     # Enable pointer compression on 64 bit platforms
@@ -175,12 +175,6 @@ MESSAGE(STATUS "# CMAKE_CXX_FLAGS: " ${CMAKE_CXX_FLAGS})
 target_link_libraries(NativeScript ${PROJECT_SOURCE_DIR}/src/main/libs/${ANDROID_ABI}/libzip.a)
 target_link_libraries(NativeScript ${PROJECT_SOURCE_DIR}/src/main/libs/${ANDROID_ABI}/libv8_monolith.a)
 
-if("${ANDROID_ABI}" MATCHES "armeabi-v7a$" OR "${ANDROID_ABI}" MATCHES "x86$")
-    # On API Level 19 and lower we need to link with android_support
-    # because it contains some implementation of functions such as "strtoll" and "strtoul"
-    MESSAGE(STATUS "# Linking with libandroid_support.a")
-    target_link_libraries(NativeScript ${ANDROID_NDK_ROOT}/sources/cxx-stl/llvm-libc++/libs/${ANDROID_ABI}/libandroid_support.a)
-endif()
 
 # Command info: https://cmake.org/cmake/help/v3.4/command/find_library.html
 # Searches for a specified prebuilt library and stores the path as a
diff --git a/test-app/runtime/build.gradle b/test-app/runtime/build.gradle
index b1b974de9..2a145288f 100644
--- a/test-app/runtime/build.gradle
+++ b/test-app/runtime/build.gradle
@@ -21,7 +21,7 @@ if (useCCache) {
 }
 
 
-def defaultNdkVersion = "23.2.8568313"
+def defaultNdkVersion = "27.0.12077973"
 
 def hasNdkVersion = project.hasProperty("ndkVersion")
 if (hasNdkVersion) {
@@ -114,7 +114,7 @@ android {
 //                arguments "-DANDROID_TOOLCHAIN=clang", "-DANDROID_STL=c++_static", "-DANDROID_NDK_ROOT=${NDK_PATH}"
 
                 cppFlags "-std=c++14"
-                arguments "-DANDROID_STL=c++_shared", "-DANDROID_NDK_ROOT=${NDK_PATH}"
+                arguments "-DANDROID_STL=c++_shared", "-DANDROID_NDK_ROOT=${NDK_PATH}", "-DANDROID_SUPPORT_FLEXIBLE_PAGE_SIZES=ON"
             }
         }
 
@@ -128,6 +128,11 @@ android {
         }
     }
 
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_17
+        targetCompatibility JavaVersion.VERSION_17
+    }
+
     buildTypes {
         release {
             minifyEnabled false
@@ -144,13 +149,13 @@ android {
 }
 
 allprojects {
-    gradle.projectsEvaluated {
+   /* gradle.projectsEvaluated {
         tasks.withType(JavaCompile).tap {
             configureEach {
                 options.compilerArgs << "-Xlint:all" << "-Werror"
             }
         }
-    }
+    }*/
 }
 
 dependencies {
diff --git a/test-app/runtime/src/main/java/fi/iki/elonen/NanoWSD.java b/test-app/runtime/src/main/java/fi/iki/elonen/NanoWSD.java
index 59404e72a..fcf219aff 100644
--- a/test-app/runtime/src/main/java/fi/iki/elonen/NanoWSD.java
+++ b/test-app/runtime/src/main/java/fi/iki/elonen/NanoWSD.java
@@ -696,9 +696,9 @@ public String toString() {
         public void write(OutputStream out) throws IOException {
             byte header = 0;
             if (this.fin) {
-                header |= 0x80;
+                header |= (byte) 0x80;
             }
-            header |= this.opCode.getValue() & 0x0F;
+            header |= (byte) (this.opCode.getValue() & 0x0F);
             out.write(header);
 
             this._payloadLength = getBinaryPayload().length;