diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index 51c36de7f..2144052f2 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -51,11 +51,11 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v7.0.1
 
       # Initializes the CodeQL tools for scanning.
       - name: Initialize CodeQL
-        uses: github/codeql-action/init@v3
+        uses: github/codeql-action/init@v4
         with:
           languages: ${{ matrix.language }}
           # If you wish to specify custom queries, you can do so here or in a config file.
@@ -66,7 +66,7 @@ jobs:
           # queries: security-extended,security-and-quality
 
       - name: Set up JDK
-        uses: actions/setup-java@v2
+        uses: actions/setup-java@v6.1.0
         with:
           java-version: ${{ env.JAVA_VERSION }}
           distribution: ${{ env.JAVA_DISTRIBUTION }}
@@ -85,6 +85,6 @@ jobs:
       #     ./location_of_script_within_repo/buildscript.sh
 
       - name: Perform CodeQL Analysis
-        uses: github/codeql-action/analyze@v3
+        uses: github/codeql-action/analyze@v4
         with:
           category: "/language:${{matrix.language}}"
diff --git a/.github/workflows/sbom.yml b/.github/workflows/sbom.yml
index c3a0aa10f..edb10fd33 100644
--- a/.github/workflows/sbom.yml
+++ b/.github/workflows/sbom.yml
@@ -17,6 +17,6 @@ jobs:
       id-token: write
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7.0.1
       - name: Fetch and submit SBOM
         uses: SCF-Public-Goods-Maintenance/pg-atlas-sbom-action@main
\ No newline at end of file
diff --git a/.github/workflows/test-deploy.yml b/.github/workflows/test-deploy.yml
index 1a24d4096..379f125e0 100644
--- a/.github/workflows/test-deploy.yml
+++ b/.github/workflows/test-deploy.yml
@@ -36,16 +36,16 @@ jobs:
           --health-retries 50
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v7.0.1
       - name: Set up JDK
-        uses: actions/setup-java@v4
+        uses: actions/setup-java@v6.1.0
         with:
           java-version: ${{ env.JAVA_VERSION }}
           distribution: ${{ env.JAVA_DISTRIBUTION }}
       - name: Test
         run: ./gradlew check
       - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v4
+        uses: codecov/codecov-action@v7.1.1
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
 
@@ -54,16 +54,16 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v7.0.1
       - name: Set up JDK
-        uses: actions/setup-java@v4
+        uses: actions/setup-java@v6.1.0
         with:
           java-version: ${{ env.JAVA_VERSION }}
           distribution: ${{ env.JAVA_DISTRIBUTION }}
       - name: Build
         run: ./gradlew build -x test -x jacocoTestReport
       - name: Persist JAR Artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7.0.2
         with:
           name: libs
           path: build/libs/*.jar
@@ -73,16 +73,16 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v7.0.1
       - name: Set up JDK
-        uses: actions/setup-java@v4
+        uses: actions/setup-java@v6.1.0
         with:
           java-version: ${{ env.JAVA_VERSION }}
           distribution: ${{ env.JAVA_DISTRIBUTION }}
       - name: Generate Documentation
         run: ./gradlew javadoc
       - name: Persist Documentation
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7.0.2
         with:
           name: javadoc
           path: javadoc
@@ -101,9 +101,9 @@ jobs:
           ]
     steps:
       - name: checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v7.0.1
       - name: Download JAR Artifact
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v8.0.2
         with:
           name: libs
           path: android_test/app/libs/
@@ -112,12 +112,12 @@ jobs:
           echo 'KERNEL=="kvm", GROUP="kvm", MODE="0666", OPTIONS+="static_node=kvm"' | sudo tee /etc/udev/rules.d/99-kvm4all.rules
           sudo udevadm control --reload-rules
           sudo udevadm trigger --name-match=kvm
-      - uses: actions/setup-java@v4
+      - uses: actions/setup-java@v6.1.0
         with:
           java-version: ${{ env.JAVA_VERSION }}
           distribution: ${{ env.JAVA_DISTRIBUTION }}
       - name: run tests
-        uses: reactivecircus/android-emulator-runner@v2
+        uses: reactivecircus/android-emulator-runner@v2.38.0
         with:
           working-directory: ./android_test
           api-level: ${{ matrix.emulator.api-level }}
@@ -134,27 +134,27 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v7.0.1
       - name: Download JAR Artifact
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v8.0.2
         with:
           name: libs
           path: libs
       - name: Download Java Documentation
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v8.0.2
         with:
           name: javadoc
           path: javadoc
       - name: Archive Documentation
         run: tar -czf stellar-sdk-javadoc.tar.gz javadoc
       - name: Upload artifacts to GitHub Release
-        uses: softprops/action-gh-release@v2
+        uses: softprops/action-gh-release@v3.0.3
         with:
           files: |
             libs/*.jar
             stellar-sdk-javadoc.tar.gz
       - name: Upload Documentation to GitHub Pages
-        uses: JamesIves/github-pages-deploy-action@v4
+        uses: JamesIves/github-pages-deploy-action@v4.9.0
         with:
           folder: javadoc
 
@@ -170,11 +170,11 @@ jobs:
       SIGNING_PASSWORD: ${{ secrets.SIGNING_PASSWORD }}
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v7.0.1
       - name: Set up JDK
-        uses: actions/setup-java@v4
+        uses: actions/setup-java@v6.1.0
         with:
           java-version: ${{ env.JAVA_VERSION }}
           distribution: ${{ env.JAVA_DISTRIBUTION }}
       - name: Publish to Maven Central
-        run: ./gradlew publishAllPublicationsToCentralPortal
+        run: ./gradlew publishAggregationToCentralPortal
diff --git a/.github/workflows/xdr-generator-snapshot-test.yml b/.github/workflows/xdr-generator-snapshot-test.yml
index 918f8f466..eeb6965c8 100644
--- a/.github/workflows/xdr-generator-snapshot-test.yml
+++ b/.github/workflows/xdr-generator-snapshot-test.yml
@@ -17,6 +17,6 @@ jobs:
   snapshot-test:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7.0.1
       - name: Run XDR generator snapshot tests
         run: make xdr-generator-test
diff --git a/android_test/app/build.gradle.kts b/android_test/app/build.gradle.kts
index 42aeda92d..d7a3cd7d8 100644
--- a/android_test/app/build.gradle.kts
+++ b/android_test/app/build.gradle.kts
@@ -69,12 +69,12 @@ dependencies {
     // Since we are adding local jar(libs/stellar-sdk.jar) as dependency,
     // gradle cannot automatically download the required third-party dependencies.
     implementation(files("libs/stellar-sdk-5.0.0.jar"))
-    implementation("com.squareup.okhttp3:okhttp:4.11.0")
-    implementation("com.squareup.okhttp3:okhttp-sse:4.11.0")
+    implementation("com.squareup.okhttp3:okhttp:4.12.1")
+    implementation("com.squareup.okhttp3:okhttp-sse:4.12.1")
     implementation("com.moandjiezana.toml:toml4j:0.7.2")
-    implementation("com.google.code.gson:gson:2.11.0")
-    implementation("org.bouncycastle:bcprov-jdk18on:1.78.1")
-    implementation("commons-codec:commons-codec:1.17.1")
+    implementation("com.google.code.gson:gson:2.15.0")
+    implementation("org.bouncycastle:bcprov-jdk18on:1.86")
+    implementation("commons-codec:commons-codec:1.23.0")
     testImplementation("junit:junit:4.13.2")
     androidTestImplementation("androidx.test.uiautomator:uiautomator:2.3.0-alpha03")
     androidTestImplementation("androidx.test.ext:junit:1.1.5")
diff --git a/build.gradle.kts b/build.gradle.kts
index fac45d80a..0dc9916c8 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -4,11 +4,10 @@ plugins {
     id("signing")
     id("maven-publish")
     id("project-report")
-    id("com.diffplug.spotless") version "8.7.0"
-    id("com.github.ben-manes.versions") version "0.54.0"
-    id("io.freefair.lombok") version "9.5.0"
-    id("com.gradleup.nmcp").version("1.6.0")
-    kotlin("jvm") version "2.4.0"
+    id("com.diffplug.spotless") version "8.10.4"
+    id("io.github.ben-manes.versions") version "0.66.0"
+    id("io.freefair.lombok") version "9.8.2"
+    kotlin("jvm") version "2.4.21"
 }
 
 group = "network.lightsail"
@@ -38,30 +37,30 @@ spotless {
     }
     kotlin {
         target("src/test/kotlin/**/*.kt")
-        ktfmt("0.56").googleStyle()
+        ktfmt("0.64").googleStyle()
     }
 }
 
 dependencies {
-    val okhttpVersion = "4.12.0"
+    val okhttpVersion = "4.12.1"
 
     implementation("com.squareup.okhttp3:okhttp:${okhttpVersion}")
     implementation("com.squareup.okhttp3:okhttp-sse:${okhttpVersion}")
     implementation("com.moandjiezana.toml:toml4j:0.7.2")
-    implementation("com.google.code.gson:gson:2.14.0")
-    implementation("org.bouncycastle:bcprov-jdk18on:1.84")
-    implementation("commons-codec:commons-codec:1.22.0")
+    implementation("com.google.code.gson:gson:2.15.0")
+    implementation("org.bouncycastle:bcprov-jdk18on:1.86")
+    implementation("commons-codec:commons-codec:1.23.0")
 
     testImplementation(kotlin("stdlib"))
-    testImplementation("org.mockito:mockito-core:5.23.0")
+    testImplementation("org.mockito:mockito-core:5.24.0")
     testImplementation("com.squareup.okhttp3:mockwebserver:${okhttpVersion}")
     testImplementation("junit:junit:4.13.2")
-    testImplementation("org.bouncycastle:bcpkix-jdk18on:1.84")  // mock https
-    testRuntimeOnly("org.junit.vintage:junit-vintage-engine:5.11.3")
+    testImplementation("org.bouncycastle:bcpkix-jdk18on:1.86")  // mock https
+    testRuntimeOnly("org.junit.vintage:junit-vintage-engine:6.1.3")
     testRuntimeOnly("org.junit.platform:junit-platform-launcher")
 
-    testImplementation("io.kotest:kotest-runner-junit5:6.1.11")
-    testImplementation("io.kotest:kotest-assertions-core:6.1.11")
+    testImplementation("io.kotest:kotest-runner-junit5:6.2.6")
+    testImplementation("io.kotest:kotest-assertions-core:6.2.6")
 }
 
 tasks {
@@ -79,12 +78,12 @@ tasks {
         dependsOn(testClasses)
     }
 
-    val sourcesJar by registering(Jar::class) {
+    val sourcesJar = register<Jar>("sourcesJar") {
         archiveClassifier = "sources"
         from(sourceSets.main.get().allSource)
     }
 
-    val uberJar by registering(Jar::class) {
+    val uberJar = register<Jar>("uberJar") {
         // https://docs.gradle.org/current/userguide/working_with_files.html#sec:creating_uber_jar_exampl
         archiveClassifier = "uber"
         duplicatesStrategy = DuplicatesStrategy.EXCLUDE
@@ -108,7 +107,7 @@ tasks {
         }
     }
 
-    val javadocJar by registering(Jar::class) {
+    val javadocJar = register<Jar>("javadocJar") {
         archiveClassifier = "javadoc"
         dependsOn(javadoc)
         from(javadoc.get().destinationDir) // It needs to be placed after the javadoc task, otherwise it cannot read the path we set.
@@ -196,7 +195,7 @@ publishing {
 
 
 signing {
-    val publishCommand = "publishAllPublicationsToCentralPortal"
+    val publishCommand = "publishAggregationToCentralPortal"
     isRequired = gradle.startParameter.taskNames.contains(publishCommand)
     println("Need to sign? $isRequired")
     // https://docs.gradle.org/current/userguide/signing_plugin.html#using_in_memory_ascii_armored_openpgp_subkeys
@@ -211,14 +210,3 @@ signing {
     useInMemoryPgpKeys(signingKeyId, signingKey, signingPassword)
     sign(publishing.publications["mavenJava"])
 }
-
-nmcp {
-    publishAllPublicationsToCentralPortal {
-        username = System.getenv("SONATYPE_USERNAME")
-        password = System.getenv("SONATYPE_PASSWORD")
-        // publish manually from the portal
-        publishingType = "USER_MANAGED"
-        // or if you want to publish automatically
-        // publishingType = "AUTOMATIC"
-    }
-}
diff --git a/examples/build.gradle.kts b/examples/build.gradle.kts
index 71f29f116..6adefd484 100644
--- a/examples/build.gradle.kts
+++ b/examples/build.gradle.kts
@@ -1,6 +1,6 @@
 plugins {
     id("java")
-    id("com.diffplug.spotless") version "6.24.0"
+    id("com.diffplug.spotless") version "8.10.4"
 
 }
 
@@ -23,7 +23,7 @@ spotless {
 dependencies {
     // Use https://central.sonatype.com/artifact/network.lightsail/stellar-sdk in prod.
     implementation("network.lightsail:stellar-sdk:5.0.0")
-    testImplementation(platform("org.junit:junit-bom:5.10.0"))
+    testImplementation(platform("org.junit:junit-bom:6.1.3"))
     testImplementation("org.junit.jupiter:junit-jupiter")
 }
 
diff --git a/examples/gradle/wrapper/gradle-wrapper.jar b/examples/gradle/wrapper/gradle-wrapper.jar
index 249e5832f..9fa7f2882 100644
Binary files a/examples/gradle/wrapper/gradle-wrapper.jar and b/examples/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/examples/gradle/wrapper/gradle-wrapper.properties b/examples/gradle/wrapper/gradle-wrapper.properties
index b5c052432..91c4fc64a 100644
--- a/examples/gradle/wrapper/gradle-wrapper.properties
+++ b/examples/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,9 @@
-#Wed Jul 03 20:45:55 CST 2024
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.5-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.8.2-bin.zip
+networkTimeout=10000
+retries=0
+retryBackOffMs=500
+validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
diff --git a/examples/gradlew b/examples/gradlew
index 1b6c78733..249efbb03 100755
--- a/examples/gradlew
+++ b/examples/gradlew
@@ -1,7 +1,7 @@
 #!/bin/sh
 
 #
-# Copyright © 2015-2021 the original authors.
+# Copyright © 2015 the original authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -15,10 +15,12 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
+# SPDX-License-Identifier: Apache-2.0
+#
 
 ##############################################################################
 #
-#   Gradle start up script for POSIX generated by Gradle.
+#   gradlew start up script for POSIX generated by Gradle.
 #
 #   Important for running:
 #
@@ -27,7 +29,7 @@
 #       bash, then to run this script, type that shell name before the whole
 #       command line, like:
 #
-#           ksh Gradle
+#           ksh gradlew
 #
 #       Busybox and similar reduced shells will NOT work, because this script
 #       requires all of these POSIX shell features:
@@ -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/3d91ce3b8caaf77ad09f381f43615b715b53f72c/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 +82,11 @@ 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 "${APP_HOME:-./}" > /dev/null && printf '%s\n' "$PWD" ) || exit
 
 # Use the maximum available, or set MAX_FD != -1 to use that value.
 MAX_FD=maximum
@@ -114,7 +114,6 @@ case "$( uname )" in                #(
   NONSTOP* )        nonstop=true ;;
 esac
 
-CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
 
 
 # Determine the Java command to use to start the JVM.
@@ -133,22 +132,29 @@ 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 $MAX_FD"
     esac
@@ -165,7 +171,6 @@ fi
 # For Cygwin or MSYS, switch paths to Windows format before running java
 if "$cygwin" || "$msys" ; then
     APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
-    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
 
     JAVACMD=$( cygpath --unix "$JAVACMD" )
 
@@ -193,18 +198,27 @@ 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, 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=$APP_BASE_NAME" \
-        -classpath "$CLASSPATH" \
-        org.gradle.wrapper.GradleWrapperMain \
+        -jar "$APP_HOME/gradle/wrapper/gradle-wrapper.jar" \
         "$@"
 
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
 # Use "xargs" to parse quoted args.
 #
 # With -n1 it outputs one arg per line, with the quotes and backslashes removed.
diff --git a/examples/gradlew.bat b/examples/gradlew.bat
index 107acd32c..3185a43f7 100644
--- a/examples/gradlew.bat
+++ b/examples/gradlew.bat
@@ -13,19 +13,49 @@
 @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
+@if "%DEBUG%"=="" @echo off
 @rem ##########################################################################
 @rem
-@rem  Gradle startup script for Windows
+@rem  gradlew startup script for Windows
 @rem
 @rem ##########################################################################
 
-@rem Set local scope for the variables with windows NT shell
-if "%OS%"=="Windows_NT" setlocal
+@rem Set local scope for the variables, and ensure extensions are enabled
+setlocal EnableExtensions
+
+@rem Catch executions from older scripts and ensure they exit cleanly.
+@rem This can be removed once we can be reasonably confident that few people
+@rem will be migrating directly to this new wrapper.
+goto afterSafetyNet
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+goto exitWithErrorLevel
+:afterSafetyNet
 
 set DIRNAME=%~dp0
-if "%DIRNAME%" == "" set DIRNAME=.
+if "%DIRNAME%"=="" set DIRNAME=.
+@rem This is normally unused
 set APP_BASE_NAME=%~n0
 set APP_HOME=%DIRNAME%
 
@@ -40,15 +70,16 @@ if defined JAVA_HOME goto findJavaFromJavaHome
 
 set JAVA_EXE=java.exe
 %JAVA_EXE% -version >NUL 2>&1
-if "%ERRORLEVEL%" == "0" goto execute
+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.
+1>&2 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.
 
-goto fail
+"%COMSPEC%" /c exit 1
+goto exitWithErrorLevel
 
 :findJavaFromJavaHome
 set JAVA_HOME=%JAVA_HOME:"=%
@@ -56,34 +87,26 @@ 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.
+1>&2 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.
 
-goto fail
+"%COMSPEC%" /c exit 1
+goto exitWithErrorLevel
 
 :execute
 @rem Setup the command line
 
-set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
-
-
-@rem Execute Gradle
-"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
-
-:end
-@rem End local scope for the variables with windows NT shell
-if "%ERRORLEVEL%"=="0" goto mainEnd
 
-:fail
-rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
-rem the _cmd.exe /c_ return code!
-if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
-exit /b 1
 
-:mainEnd
-if "%OS%"=="Windows_NT" endlocal
+@rem Execute gradlew
+@rem endlocal doesn't take effect until after the line is parsed and variables are expanded
+@rem which allows us to clear the local environment before executing the java command
+endlocal & "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -jar "%APP_HOME%\gradle\wrapper\gradle-wrapper.jar" %* & call :exitWithErrorLevel & goto exitWithErrorLevel
 
-:omega
+@rem This label must not be changed. We rely on old scripts being able to jump to this point.
+:exitWithErrorLevel
+@rem Use "%COMSPEC%" /c exit to allow operators to work properly in scripts
+"%COMSPEC%" /c exit %ERRORLEVEL%
diff --git a/examples/src/main/java/network/lightsail/CheckStellarAssetContract.java b/examples/src/main/java/network/lightsail/CheckStellarAssetContract.java
index 918cb19c2..9265c07e4 100644
--- a/examples/src/main/java/network/lightsail/CheckStellarAssetContract.java
+++ b/examples/src/main/java/network/lightsail/CheckStellarAssetContract.java
@@ -6,7 +6,6 @@
 import org.stellar.sdk.responses.sorobanrpc.GetLedgerEntriesResponse;
 import org.stellar.sdk.scval.Scv;
 import org.stellar.sdk.xdr.ContractDataDurability;
-import org.stellar.sdk.xdr.LedgerEntry.LedgerEntryData;
 import org.stellar.sdk.xdr.LedgerEntryType;
 import org.stellar.sdk.xdr.LedgerKey;
 import org.stellar.sdk.xdr.LedgerKey.LedgerKeyContractData;
diff --git a/examples/src/main/java/network/lightsail/SorobanCreateContract.java b/examples/src/main/java/network/lightsail/SorobanCreateContract.java
index d7be45064..155515b0c 100644
--- a/examples/src/main/java/network/lightsail/SorobanCreateContract.java
+++ b/examples/src/main/java/network/lightsail/SorobanCreateContract.java
@@ -56,15 +56,8 @@ public static void main(String[] args) throws IOException {
         System.out.println("Transaction succeeded: " + getTransactionResponse);
         // parse the function return value
         TransactionMeta transactionMeta = getTransactionResponse.parseResultMetaXdr();
-        byte[] hash =
-            transactionMeta
-                .getV3()
-                .getSorobanMeta()
-                .getReturnValue()
-                .getAddress()
-                .getContractId()
-                .getHash();
-        String contractId = StrKey.encodeContract(hash);
+        String contractId =
+            Address.fromSCVal(transactionMeta.getV4().getSorobanMeta().getReturnValue()).toString();
         System.out.println("Contract ID: " + contractId);
       } else {
         System.out.println("Transaction failed: " + getTransactionResponse);
diff --git a/examples/src/main/java/network/lightsail/SorobanInvokeContractFunction.java b/examples/src/main/java/network/lightsail/SorobanInvokeContractFunction.java
index 04d4c4753..7f13ab089 100644
--- a/examples/src/main/java/network/lightsail/SorobanInvokeContractFunction.java
+++ b/examples/src/main/java/network/lightsail/SorobanInvokeContractFunction.java
@@ -30,7 +30,7 @@ public static void main(String[] args) throws IOException {
 
       // The invoke host function operation
       // https://github.com/stellar/soroban-examples/tree/main/hello_world
-      String contractId = "CDZJVZWCY4NFGHCCZMX6QW5AK3ET5L3UUAYBVNDYOXDLQXW7PHXGYOBJ";
+      String contractId = "CDSMG6PNJYIPIWFIDQVLCOXMQPZU73FSBCTMBDGBGFLF7WPLJMASODYX";
       String functionName = "hello";
       List<SCVal> parameters =
           List.of(Scv.toString("World!")); // Scv is a helper class to create SCVal objects
@@ -98,7 +98,7 @@ public static void main(String[] args) throws IOException {
         System.out.println("Transaction succeeded: " + getTransactionResponse);
         // parse the function return value
         TransactionMeta transactionMeta = getTransactionResponse.parseResultMetaXdr();
-        SCVal rawReturnValue = transactionMeta.getV3().getSorobanMeta().getReturnValue();
+        SCVal rawReturnValue = transactionMeta.getV4().getSorobanMeta().getReturnValue();
         System.out.println("Raw return value: " + rawReturnValue);
         List<SCVal> vec = Scv.fromVec(rawReturnValue).stream().toList();
         String returnValue0 = new String(Scv.fromString(vec.get(0)), StandardCharsets.UTF_8);
diff --git a/examples/src/main/java/network/lightsail/SorobanUploadWasm.java b/examples/src/main/java/network/lightsail/SorobanUploadWasm.java
index 9008da0e3..8eaf38f16 100644
--- a/examples/src/main/java/network/lightsail/SorobanUploadWasm.java
+++ b/examples/src/main/java/network/lightsail/SorobanUploadWasm.java
@@ -61,7 +61,7 @@ public static void main(String[] args) throws IOException {
         // parse the function return value
         TransactionMeta transactionMeta = getTransactionResponse.parseResultMetaXdr();
         byte[] wasmId =
-            transactionMeta.getV3().getSorobanMeta().getReturnValue().getBytes().getSCBytes();
+            transactionMeta.getV4().getSorobanMeta().getReturnValue().getBytes().getSCBytes();
         System.out.println("Wasm ID: " + Util.bytesToHex(wasmId).toLowerCase());
       } else {
         System.out.println("Transaction failed: " + getTransactionResponse);
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
index d997cfc60..9fa7f2882 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 a351597e6..91c4fc64a 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,7 +1,9 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-9.6.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.8.2-bin.zip
 networkTimeout=10000
+retries=0
+retryBackOffMs=500
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
diff --git a/gradlew b/gradlew
index 739907dfd..249efbb03 100755
--- a/gradlew
+++ b/gradlew
@@ -20,7 +20,7 @@
 
 ##############################################################################
 #
-#   Gradle start up script for POSIX generated by Gradle.
+#   gradlew start up script for POSIX generated by Gradle.
 #
 #   Important for running:
 #
@@ -29,7 +29,7 @@
 #       bash, then to run this script, type that shell name before the whole
 #       command line, like:
 #
-#           ksh Gradle
+#           ksh gradlew
 #
 #       Busybox and similar reduced shells will NOT work, because this script
 #       requires all of these POSIX shell features:
@@ -57,7 +57,7 @@
 #       Darwin, MinGW, and NonStop.
 #
 #   (3) This script is generated from the Groovy template
-#       https://github.com/gradle/gradle/blob/2d6327017519d23b96af35865dc997fcb544fb40/platforms/jvm/plugins-application/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       https://github.com/gradle/gradle/blob/3d91ce3b8caaf77ad09f381f43615b715b53f72c/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/.
diff --git a/gradlew.bat b/gradlew.bat
index e509b2dd8..03754c4c3 100644
--- a/gradlew.bat
+++ b/gradlew.bat
@@ -19,12 +19,39 @@
 @if "%DEBUG%"=="" @echo off
 @rem ##########################################################################
 @rem
-@rem  Gradle startup script for Windows
+@rem  gradlew startup script for Windows
 @rem
 @rem ##########################################################################
 
-@rem Set local scope for the variables with windows NT shell
-if "%OS%"=="Windows_NT" setlocal
+@rem Set local scope for the variables, and ensure extensions are enabled
+setlocal EnableExtensions
+
+@rem Catch executions from older scripts and ensure they exit cleanly.
+@rem This can be removed once we can be reasonably confident that few people
+@rem will be migrating directly to this new wrapper.
+goto afterSafetyNet
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+goto exitWithErrorLevel
+:afterSafetyNet
 
 set DIRNAME=%~dp0
 if "%DIRNAME%"=="" set DIRNAME=.
@@ -45,13 +72,14 @@ set JAVA_EXE=java.exe
 %JAVA_EXE% -version >NUL 2>&1
 if %ERRORLEVEL% equ 0 goto execute
 
-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
+1>&2 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.
 
-goto fail
+"%COMSPEC%" /c exit 1
+goto exitWithErrorLevel
 
 :findJavaFromJavaHome
 set JAVA_HOME=%JAVA_HOME:"=%
@@ -59,35 +87,26 @@ set JAVA_EXE=%JAVA_HOME%/bin/java.exe
 
 if exist "%JAVA_EXE%" goto execute
 
-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
+1>&2 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.
 
-goto fail
+"%COMSPEC%" /c exit 1
+goto exitWithErrorLevel
 
 :execute
 @rem Setup the command line
 
 
 
-@rem Execute Gradle
-"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -jar "%APP_HOME%\gradle\wrapper\gradle-wrapper.jar" %*
+@rem Execute gradlew
+@rem endlocal doesn't take effect until after the line is parsed and variables are expanded
+@rem which allows us to clear the local environment before executing the java command
+endlocal & "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -jar "%APP_HOME%\gradle\wrapper\gradle-wrapper.jar" %* & call :exitWithErrorLevel & goto exitWithErrorLevel
 
-:end
-@rem End local scope for the variables with windows NT shell
-if %ERRORLEVEL% equ 0 goto mainEnd
-
-:fail
-rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
-rem the _cmd.exe /c_ return code!
-set EXIT_CODE=%ERRORLEVEL%
-if %EXIT_CODE% equ 0 set EXIT_CODE=1
-if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
-exit /b %EXIT_CODE%
-
-:mainEnd
-if "%OS%"=="Windows_NT" endlocal
-
-:omega
+@rem This label must not be changed. We rely on old scripts being able to jump to this point.
+:exitWithErrorLevel
+@rem Use "%COMSPEC%" /c exit to allow operators to work properly in scripts
+"%COMSPEC%" /c exit %ERRORLEVEL%
diff --git a/settings.gradle.kts b/settings.gradle.kts
index b06a2ed68..b0ba7064b 100644
--- a/settings.gradle.kts
+++ b/settings.gradle.kts
@@ -1,2 +1,16 @@
+plugins {
+    id("com.gradleup.nmcp.settings").version("1.6.2")
+}
+
 rootProject.name = "stellar-sdk"
 
+nmcpSettings {
+    centralPortal {
+        username = System.getenv("SONATYPE_USERNAME")
+        password = System.getenv("SONATYPE_PASSWORD")
+        // publish manually from the portal
+        publishingType = "USER_MANAGED"
+        // or if you want to publish automatically
+        // publishingType = "AUTOMATIC"
+    }
+}
diff --git a/src/test/kotlin/org/stellar/sdk/contract/SorobanServerContractIntrospectionTest.kt b/src/test/kotlin/org/stellar/sdk/contract/SorobanServerContractIntrospectionTest.kt
index a87463d4e..e3804a902 100644
--- a/src/test/kotlin/org/stellar/sdk/contract/SorobanServerContractIntrospectionTest.kt
+++ b/src/test/kotlin/org/stellar/sdk/contract/SorobanServerContractIntrospectionTest.kt
@@ -133,14 +133,14 @@ private fun singleEntryJson(xdr: String): String =
 
 private fun emptyEntriesJson(): String =
   """
-    {
-      "jsonrpc": "2.0",
-      "id": "id",
-      "result": {
-        "entries": [],
-        "latestLedger": "100"
-      }
+  {
+    "jsonrpc": "2.0",
+    "id": "id",
+    "result": {
+      "entries": [],
+      "latestLedger": "100"
     }
+  }
   """
     .trimIndent()