diff --git a/Android/MMKV/gradle.properties b/Android/MMKV/gradle.properties
index 136fa883..e28bf484 100644
--- a/Android/MMKV/gradle.properties
+++ b/Android/MMKV/gradle.properties
@@ -14,7 +14,7 @@ org.gradle.jvmargs=-Xmx1536m
 # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
 # org.gradle.parallel=true
 
-VERSION_NAME_PREFIX=2.4.2
+VERSION_NAME_PREFIX=2.4.3
 #VERSION_NAME_SUFFIX=-SNAPSHOT
 VERSION_NAME_SUFFIX=
 
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 332caebf..8d7b87b6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,34 @@
 # MMKV Change Log
+## v2.4.3 / 2026-10-16
+
+This is a bugfix release based on v2.4.2, focused on encryption, expiration, imports, and file recovery. It also adds Android KMP initialization without an explicit Context and non-expired-key enumeration on Apple platforms.
+
+### Changes for All Platforms
+* **Fix:** Prevented IV reuse when repeatedly updating an encrypted store containing a single key.
+* **Fix:** Loaded expiration state before the first read or write after reopening a store, and honored expiration in read-only reads, key lists, and counts.
+* **Fix:** Fixed lock-order deadlocks in `importFrom()` ([#1688](https://github.com/tencent/mmkv/issues/1688)) and `removeStorage()`. Callers must still prevent concurrent use of an instance being removed.
+* **Fix:** Preserved source values when importing into encrypted stores, rejected self-import, and counted only successful imports.
+* **Fix:** Corrected unsigned protobuf value-length decoding and hardened key/value length checks, payload growth, expiration migration, and encryption removal against oversized or unrepresentable data.
+* **Fix:** Corrected file-size validation, undersized-file handling, read-only recovery, and cached restore mapping checks; required complete whole-file reads and zero-fill writes.
+* **Fix:** Corrected small-buffer moves and resets to avoid truncation errors and unaligned access.
+
+### Kotlin Multiplatform
+* **Fix:** Restored Android string-write interoperability with the native Java API.
+* **Feature:** Added Android `MMKV.initialize()` without an explicit Context using AndroidX App Startup. Explicit Context initialization remains available.
+
+### iOS/macOS
+* **Fix:** Made `enumerateKeys:` safe when callbacks read expired values.
+* **Feature:** Added `enumerateNonExpiredKeys:` to filter expired keys at the start of enumeration.
+
+### HarmonyOS NEXT
+* **Fix:** Validated ArrayBuffer slice ranges, backing-buffer bounds, and typed-array alignment before accessing memory.
+
+### Flutter
+* **Fix:** Prevented an Android plugin detach crash when `libmmkv.so` is unavailable for the device ABI ([#1687](https://github.com/tencent/mmkv/pull/1687)).
+
+### POSIX/Linux
+* **Fix:** Completed short and interrupted file-copy operations, including Linux `sendfile()` transfers.
+
 ## v2.4.2 / 2026-08-21
 
 This is a hotfix release based on v2.4.1. It adds targeted encrypted-write and backup/restore checks, fixes Kotlin Multiplatform consistency issues, and repairs native package build/link regressions.
diff --git a/Core/MMKVPredef.h b/Core/MMKVPredef.h
index 508d46b0..df570275 100755
--- a/Core/MMKVPredef.h
+++ b/Core/MMKVPredef.h
@@ -34,7 +34,7 @@
 #include <vector>
 #include <unordered_map>
 
-constexpr auto MMKV_VERSION = "v2.4.2";
+constexpr auto MMKV_VERSION = "v2.4.3";
 
 #ifdef DEBUG
 #    define MMKV_DEBUG
diff --git a/KMP/PUBLISHING.md b/KMP/PUBLISHING.md
index 1aea2a7a..6044925d 100644
--- a/KMP/PUBLISHING.md
+++ b/KMP/PUBLISHING.md
@@ -8,18 +8,18 @@ same build.
 Confirm that these versions match:
 
 ```text
-Core/MMKVPredef.h                         v2.4.2
-Android/MMKV/gradle.properties            2.4.2
-KMP/gradle.properties                     2.4.2
-MMKV*.podspec                             2.4.2
+Core/MMKVPredef.h                         v2.4.3
+Android/MMKV/gradle.properties            2.4.3
+KMP/gradle.properties                     2.4.3
+MMKV*.podspec                             2.4.3
 ```
 
-The release tag `v2.4.2` must exist before publishing because the standalone
+The release tag `v2.4.3` must exist before publishing because the standalone
 KMP native build fallback resolves MMKV Core from that tag.
 
 ## 2. Publish the Android dependency locally
 
-The KMP Android target depends on `com.tencent:mmkv:2.4.2`.
+The KMP Android target depends on `com.tencent:mmkv:2.4.3`.
 Use one workspace-local repository for both the Android dependency and the KMP
 publications. The commands below keep Gradle's project caches under the ignored
 KMP build directory without changing `GRADLE_USER_HOME`.
@@ -61,7 +61,7 @@ KMP/gradlew -p KMP :mmkv:connectedAndroidDeviceTest \
 ```
 
 Before release, also install the sample as an external consumer of
-`com.tencent:mmkv-kmp:2.4.2` on physical Android and iOS devices. Opting into
+`com.tencent:mmkv-kmp:2.4.3` on physical Android and iOS devices. Opting into
 the sample with `MMKV_USE_PUBLISHED=true` disables its unpublished desktop
 target and replaces `project(":mmkv")` with the root KMP coordinate:
 
@@ -220,7 +220,7 @@ After Maven Central synchronization, test a clean project without
 
 ```kotlin
 commonMain.dependencies {
-    implementation("com.tencent:mmkv-kmp:2.4.2")
+    implementation("com.tencent:mmkv-kmp:2.4.3")
 }
 ```
 
diff --git a/KMP/README.md b/KMP/README.md
index daae996b..b6517f76 100644
--- a/KMP/README.md
+++ b/KMP/README.md
@@ -11,7 +11,7 @@ Add the MMKV KMP package to your shared module:
 kotlin {
     sourceSets {
         commonMain.dependencies {
-            implementation("com.tencent:mmkv-kmp:2.4.2")
+            implementation("com.tencent:mmkv-kmp:2.4.3")
         }
     }
 }
@@ -23,7 +23,7 @@ Android consumers should have AndroidX enabled in `gradle.properties`:
 android.useAndroidX=true
 ```
 
-Supported targets in v2.4.2:
+Supported targets in v2.4.3:
 
 * Android
 * `iosArm64`
@@ -38,16 +38,16 @@ iOS 14.
 For this experimental release, consumers should depend only on the root artifact:
 
 ```text
-com.tencent:mmkv-kmp:2.4.2
+com.tencent:mmkv-kmp:2.4.3
 ```
 
 Gradle uses Kotlin Multiplatform metadata to select the target artifact:
 
 ```text
-com.tencent:mmkv-kmp-android:2.4.2
-com.tencent:mmkv-kmp-iosarm64:2.4.2
-com.tencent:mmkv-kmp-iossimulatorarm64:2.4.2
-com.tencent:mmkv-kmp-iosx64:2.4.2
+com.tencent:mmkv-kmp-android:2.4.3
+com.tencent:mmkv-kmp-iosarm64:2.4.3
+com.tencent:mmkv-kmp-iossimulatorarm64:2.4.3
+com.tencent:mmkv-kmp-iosx64:2.4.3
 ```
 
 Do not add the target-specific artifacts directly.
@@ -139,7 +139,7 @@ by the same native instance become invalid immediately. The caller must ensure
 that no operation is running and no reference is used afterward. Discard every
 reference before reopening the same ID.
 
-Android delegates to the native `com.tencent:mmkv:2.4.2` AAR. iOS embeds MMKV
+Android delegates to the native `com.tencent:mmkv:2.4.3` AAR. iOS embeds MMKV
 Core through the C bridge in the published native KLIBs, so consumers do not
 need CocoaPods, Swift Package Manager, or a source build.
 
@@ -158,7 +158,7 @@ cd KMP
 ```
 
 `MMKV_USE_MAVEN_LOCAL=true` is needed when the matching
-`com.tencent:mmkv:2.4.2` Android artifact has been published only to Maven
+`com.tencent:mmkv:2.4.3` Android artifact has been published only to Maven
 Local.
 
 Release maintainers should also follow [PUBLISHING.md](./PUBLISHING.md).
diff --git a/KMP/gradle.properties b/KMP/gradle.properties
index 34b9cfe3..93eb9372 100644
--- a/KMP/gradle.properties
+++ b/KMP/gradle.properties
@@ -12,14 +12,14 @@ kotlin.native.cacheKind.iosArm64=none
 kotlin.native.cacheKind.iosSimulatorArm64=none
 
 # Published KMP wrapper coordinates
-MMKV_VERSION=2.4.2
-VERSION_NAME=2.4.2
+MMKV_VERSION=2.4.3
+VERSION_NAME=2.4.3
 GROUP=com.tencent
 POM_ARTIFACT_ID=mmkv-kmp
 
 # Native iOS cbridge fetch overrides used when building outside this monorepo.
 # MMKV_GIT_REPOSITORY=https://github.com/Tencent/MMKV.git
-# MMKV_GIT_TAG=v2.4.2
+# MMKV_GIT_TAG=v2.4.3
 # MMKV_GIT_BRANCH=<branch>
 # MMKV_GIT_COMMIT=<commit>
 
diff --git a/KMP/mmkv/build.gradle.kts b/KMP/mmkv/build.gradle.kts
index 87e775f7..78a99b5f 100644
--- a/KMP/mmkv/build.gradle.kts
+++ b/KMP/mmkv/build.gradle.kts
@@ -29,7 +29,7 @@ plugins {
     id("signing")
 }
 
-val mmkvVersion = (findProperty("MMKV_VERSION") as? String) ?: "2.4.2"
+val mmkvVersion = (findProperty("MMKV_VERSION") as? String) ?: "2.4.3"
 val publishVersion = (findProperty("VERSION_NAME") as? String) ?: mmkvVersion
 val baseArtifactId = (findProperty("POM_ARTIFACT_ID") as? String) ?: "mmkv-kmp"
 val publishedGroup = (findProperty("GROUP") as? String) ?: "com.tencent"
diff --git a/KMP/mmkv/nativeInterop/CMakeLists.txt b/KMP/mmkv/nativeInterop/CMakeLists.txt
index 86c30efc..0a9920a0 100644
--- a/KMP/mmkv/nativeInterop/CMakeLists.txt
+++ b/KMP/mmkv/nativeInterop/CMakeLists.txt
@@ -23,7 +23,7 @@ project(mmkv-kmp)
 
 # Set the version of MMKV to use. Can be overridden by Gradle via
 # -DMMKV_VERSION=v<x.y.z>. Defaults to the in-repo value when run standalone.
-set(MMKV_VERSION "v2.4.2" CACHE STRING "MMKV version to fetch when built outside the monorepo")
+set(MMKV_VERSION "v2.4.3" CACHE STRING "MMKV version to fetch when built outside the monorepo")
 set(MMKV_GIT_REPOSITORY "https://github.com/Tencent/MMKV.git" CACHE STRING "MMKV git repository to fetch when built outside the monorepo")
 set(MMKV_GIT_TAG "${MMKV_VERSION}" CACHE STRING "MMKV git tag, branch, or commit to fetch when built outside the monorepo")
 
diff --git a/KMP/mmkv/src/commonTest/kotlin/com/tencent/mmkv/kmp/MMKVSmokeTest.kt b/KMP/mmkv/src/commonTest/kotlin/com/tencent/mmkv/kmp/MMKVSmokeTest.kt
index c8a3df64..6dbf116d 100644
--- a/KMP/mmkv/src/commonTest/kotlin/com/tencent/mmkv/kmp/MMKVSmokeTest.kt
+++ b/KMP/mmkv/src/commonTest/kotlin/com/tencent/mmkv/kmp/MMKVSmokeTest.kt
@@ -40,7 +40,7 @@ class MMKVSmokeTest {
     @Test
     fun releaseVersionMatchesPublishedVersion() {
         MMKVTestEnv.initialize()
-        assertEquals("v2.4.2", MMKV.version())
+        assertEquals("v2.4.3", MMKV.version())
     }
 
     @Test
diff --git a/KMP/sample/composeApp/build.gradle.kts b/KMP/sample/composeApp/build.gradle.kts
index 375da662..7d1bdb34 100644
--- a/KMP/sample/composeApp/build.gradle.kts
+++ b/KMP/sample/composeApp/build.gradle.kts
@@ -7,7 +7,7 @@ plugins {
 }
 
 val usePublishedMMKV = providers.gradleProperty("MMKV_USE_PUBLISHED").orNull == "true"
-val mmkvVersion = providers.gradleProperty("VERSION_NAME").getOrElse("2.4.2")
+val mmkvVersion = providers.gradleProperty("VERSION_NAME").getOrElse("2.4.3")
 
 kotlin {
     androidTarget {
diff --git a/KMP/sample/composeApp/src/commonMain/kotlin/com/tencent/mmkv/sample/MMKVConsumerSmoke.kt b/KMP/sample/composeApp/src/commonMain/kotlin/com/tencent/mmkv/sample/MMKVConsumerSmoke.kt
index 1cd68105..d5a8141d 100644
--- a/KMP/sample/composeApp/src/commonMain/kotlin/com/tencent/mmkv/sample/MMKVConsumerSmoke.kt
+++ b/KMP/sample/composeApp/src/commonMain/kotlin/com/tencent/mmkv/sample/MMKVConsumerSmoke.kt
@@ -5,7 +5,7 @@ import com.tencent.mmkv.kmp.MMKVNameSpace
 import kotlin.random.Random
 
 fun verifyMMKVConsumer() {
-    check(MMKV.version() == "v2.4.2")
+    check(MMKV.version() == "v2.4.3")
 
     val id = "published-consumer-${Random.nextLong()}"
     val kv = MMKV.mmkvWithID(id)
diff --git a/MMKV.podspec b/MMKV.podspec
index 57e78911..ad7e90b5 100644
--- a/MMKV.podspec
+++ b/MMKV.podspec
@@ -1,7 +1,7 @@
 Pod::Spec.new do |s|
 
   s.name         = "MMKV"
-  s.version      = "2.4.2"
+  s.version      = "2.4.3"
   s.summary      = "MMKV is a cross-platform key-value storage framework developed by WeChat."
 
   s.description  = <<-DESC
@@ -37,7 +37,7 @@ Pod::Spec.new do |s|
     "DEFINES_MODULE" => "YES",
   }
 
-  s.dependency 'MMKVCore', '~> 2.4.2'
+  s.dependency 'MMKVCore', '~> 2.4.3'
 
 end
 
diff --git a/MMKVAppExtension.podspec b/MMKVAppExtension.podspec
index a7889e2e..0acdf3bb 100644
--- a/MMKVAppExtension.podspec
+++ b/MMKVAppExtension.podspec
@@ -1,7 +1,7 @@
 Pod::Spec.new do |s|
 
   s.name         = "MMKVAppExtension"
-  s.version      = "2.4.2"
+  s.version      = "2.4.3"
   s.summary      = "MMKV is a cross-platform key-value storage framework developed by WeChat."
   s.module_name  = "MMKVAppExtension"
 
@@ -34,7 +34,7 @@ Pod::Spec.new do |s|
     "GCC_PREPROCESSOR_DEFINITIONS" => "MMKV_IOS_EXTENSION",
   }
 
-  s.dependency 'MMKVCore', '~> 2.4.2'
+  s.dependency 'MMKVCore', '~> 2.4.3'
 
 end
 
diff --git a/MMKVCore.podspec b/MMKVCore.podspec
index c9be152b..dd75117f 100644
--- a/MMKVCore.podspec
+++ b/MMKVCore.podspec
@@ -1,7 +1,7 @@
 Pod::Spec.new do |s|
 
   s.name         = "MMKVCore"
-  s.version      = "2.4.2"
+  s.version      = "2.4.3"
   s.summary      = "MMKVCore for MMKV. MMKV is a cross-platform key-value storage framework developed by WeChat."
 
   s.description  = <<-DESC
diff --git a/MMKVWatchExtension.podspec b/MMKVWatchExtension.podspec
index d6c84162..d5dd3a73 100644
--- a/MMKVWatchExtension.podspec
+++ b/MMKVWatchExtension.podspec
@@ -1,7 +1,7 @@
 Pod::Spec.new do |s|
 
   s.name         = "MMKVWatchExtension"
-  s.version      = "2.4.2"
+  s.version      = "2.4.3"
   s.summary      = "MMKV is a cross-platform key-value storage framework developed by WeChat."
   s.module_name  = "MMKVWatchExtension"
 
@@ -35,7 +35,7 @@ Pod::Spec.new do |s|
     'EXCLUDED_ARCHS[sdk=watchos*]' => 'armv7k',
   }
 
-  s.dependency 'MMKVCore', '~> 2.4.2'
+  s.dependency 'MMKVCore', '~> 2.4.3'
 
 end
 
diff --git a/OpenHarmony/MMKV/BuildProfile.ets b/OpenHarmony/MMKV/BuildProfile.ets
index 429c6974..b7206683 100644
--- a/OpenHarmony/MMKV/BuildProfile.ets
+++ b/OpenHarmony/MMKV/BuildProfile.ets
@@ -1,7 +1,7 @@
 /**
  * Use these variables when you tailor your ArkTS code. They must be of the const type.
  */
-export const HAR_VERSION = '2.4.2';
+export const HAR_VERSION = '2.4.3';
 export const BUILD_MODE_NAME = 'release';
 export const DEBUG = false;
 export const TARGET_NAME = 'default';
diff --git a/OpenHarmony/MMKV/CHANGELOG.md b/OpenHarmony/MMKV/CHANGELOG.md
index c52aaac7..a43e784a 100644
--- a/OpenHarmony/MMKV/CHANGELOG.md
+++ b/OpenHarmony/MMKV/CHANGELOG.md
@@ -1,4 +1,8 @@
 # MMKV for HarmonyOS NEXT Change Log
+## v2.4.3 / 2026-10-16
+* Keep up with MMKV Core v2.4.3 encryption, expiration, import, and file-recovery fixes.
+* Validate ArrayBuffer slice ranges, backing-buffer bounds, and typed-array alignment before accessing memory.
+
 ## v2.4.2 / 2026-08-21
 * Keep up with MMKV Core v2.4.2 hotfix and data-safety fixes.
 * **Fix:** Corrected the one-year expiration constant.
diff --git a/OpenHarmony/MMKV/README.md b/OpenHarmony/MMKV/README.md
index 871c7e89..e4af96b9 100644
--- a/OpenHarmony/MMKV/README.md
+++ b/OpenHarmony/MMKV/README.md
@@ -1,6 +1,6 @@
 [![license](https://img.shields.io/badge/license-BSD_3-brightgreen.svg?style=flat)](https://github.com/Tencent/MMKV/blob/master/LICENSE.TXT)
 [![PRs Welcome](https://img.shields.io/badge/PRs-welcome-brightgreen.svg)](https://github.com/Tencent/MMKV/pulls)
-[![Release Version](https://img.shields.io/badge/release-2.4.2-brightgreen.svg)](https://github.com/Tencent/MMKV/releases)
+[![Release Version](https://img.shields.io/badge/release-2.4.3-brightgreen.svg)](https://github.com/Tencent/MMKV/releases)
 [![Platform](https://img.shields.io/badge/Platform-%20HarmonyOS%20NEXT-brightgreen.svg)](https://github.com/Tencent/MMKV/wiki/home)
 
 MMKV is an **efficient**, **small**, **easy-to-use** mobile key-value storage framework used in the WeChat application. It's now available on **HarmonyOS NEXT**.
@@ -37,7 +37,7 @@ Or, you can add it to your project manually.
 
   ```json
   "dependencies": {
-      "@tencent/mmkv": "~2.4.2",
+      "@tencent/mmkv": "~2.4.3",
   }
   ```
 * Then run
diff --git a/OpenHarmony/MMKV/oh-package.json5 b/OpenHarmony/MMKV/oh-package.json5
index a22eaa92..577572f0 100644
--- a/OpenHarmony/MMKV/oh-package.json5
+++ b/OpenHarmony/MMKV/oh-package.json5
@@ -1,6 +1,6 @@
 {
   "name": "@tencent/mmkv",
-  "version": "2.4.2",
+  "version": "2.4.3",
   "description": "The official OpenHarmony package of MMKV. An efficient, small mobile key-value storage framework developed by WeChat.",
   "main": "Index.ets",
   "author": {
diff --git a/OpenHarmony/entry/oh-package.json5 b/OpenHarmony/entry/oh-package.json5
index f09b808a..d915a17f 100644
--- a/OpenHarmony/entry/oh-package.json5
+++ b/OpenHarmony/entry/oh-package.json5
@@ -7,7 +7,7 @@
   "license": "BSD 3-Clause",
   "dependencies": {
     "@tencent/mmkv": "file:../MMKV",
-//  "@tencent/mmkv": "~2.4.2",
+//  "@tencent/mmkv": "~2.4.3",
     "libentry.so": "file:./src/main/cpp/types/libentry",
   }
 }
\ No newline at end of file
diff --git a/README.md b/README.md
index ae069a79..e0ba1f82 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 [![license](https://img.shields.io/badge/license-BSD_3-brightgreen.svg?style=flat)](https://github.com/Tencent/MMKV/blob/master/LICENSE.TXT)
 [![PRs Welcome](https://img.shields.io/badge/PRs-welcome-brightgreen.svg)](https://github.com/Tencent/MMKV/pulls)
-[![Release Version](https://img.shields.io/badge/release-2.4.2-brightgreen.svg)](https://github.com/Tencent/MMKV/releases)
+[![Release Version](https://img.shields.io/badge/release-2.4.3-brightgreen.svg)](https://github.com/Tencent/MMKV/releases)
 [![Platform](https://img.shields.io/badge/Platform-%20Android%20%7C%20iOS%2FmacOS%20%7C%20Kotlin%20Multiplatform%20%7C%20Windows%20%7C%20POSIX%20%7C%20HarmonyOS%20NEXT-brightgreen.svg)](https://github.com/Tencent/MMKV/wiki/home)
 
 中文版本请参看[这里](./README_CN.md)
@@ -9,7 +9,7 @@ MMKV is an **efficient**, **small**, **easy-to-use** mobile key-value storage fr
 
 # MMKV for Kotlin Multiplatform
 
-The v2.4.2 Kotlin Multiplatform package is experimental and currently targets
+The v2.4.3 Kotlin Multiplatform package is experimental and currently targets
 Android and iOS. Its API and artifact layout may change in a future release.
 Add it to the shared module:
 
@@ -17,7 +17,7 @@ Add it to the shared module:
 kotlin {
     sourceSets {
         commonMain.dependencies {
-            implementation("com.tencent:mmkv-kmp:2.4.2")
+            implementation("com.tencent:mmkv-kmp:2.4.3")
         }
     }
 }
@@ -46,8 +46,8 @@ Add the following lines to `build.gradle` on your app module:
 
 ```gradle
 dependencies {
-    implementation 'com.tencent:mmkv:2.4.2'
-    // replace "2.4.2" with any available version
+    implementation 'com.tencent:mmkv:2.4.3'
+    // replace "2.4.3" with any available version
 }
 ```
 
diff --git a/README_CN.md b/README_CN.md
index 0115bc31..6c68f0e3 100644
--- a/README_CN.md
+++ b/README_CN.md
@@ -3,14 +3,14 @@ MMKV 是基于 mmap 内存映射的 key-value 组件，底层序列化/反序列
 
 ## Kotlin Multiplatform 指南
 
-v2.4.2 的 Kotlin Multiplatform 包为实验性功能，目前支持 Android 与 iOS；
+v2.4.3 的 Kotlin Multiplatform 包为实验性功能，目前支持 Android 与 iOS；
 后续版本可能调整 API 或产物结构。在共享模块中引入：
 
 ```kotlin
 kotlin {
     sourceSets {
         commonMain.dependencies {
-            implementation("com.tencent:mmkv-kmp:2.4.2")
+            implementation("com.tencent:mmkv-kmp:2.4.3")
         }
     }
 }
@@ -39,8 +39,8 @@ kotlin {
 
 ```gradle
 dependencies {
-    implementation 'com.tencent:mmkv:2.4.2'
-    // replace "2.4.2" with any available version
+    implementation 'com.tencent:mmkv:2.4.3'
+    // replace "2.4.3" with any available version
 }
 ```
 从 v2.0.0 起, MMKV **去掉了 32-bit 架构的支持**、API level 22 及以下的支持, 如有这类需求，请使用 v1.3.x LTS 版本。  
diff --git a/flutter/mmkv/CHANGELOG.md b/flutter/mmkv/CHANGELOG.md
index 709da71f..dbcb7c93 100644
--- a/flutter/mmkv/CHANGELOG.md
+++ b/flutter/mmkv/CHANGELOG.md
@@ -1,4 +1,9 @@
 # MMKV for Flutter Change Log
+## v2.4.3 / 2026-10-16
+* Keep up with MMKV native libraries v2.4.3, including encryption, expiration, import, and file-recovery fixes.
+* Android: Prevent a plugin detach crash when the native library is unavailable for the device ABI ([#1687](https://github.com/tencent/mmkv/pull/1687)).
+* HarmonyOS NEXT: Validate ArrayBuffer slice bounds and typed-array alignment.
+
 ## v2.4.2 / 2026-08-21
 * Keep up with MMKV native libraries v2.4.2 and their hotfix/data-safety fixes.
 * **Fix:** Corrected the one-year expiration constant.
diff --git a/flutter/mmkv/README.md b/flutter/mmkv/README.md
index 0537f8bc..3884431f 100644
--- a/flutter/mmkv/README.md
+++ b/flutter/mmkv/README.md
@@ -1,6 +1,6 @@
 [![license](https://img.shields.io/badge/license-BSD_3-brightgreen.svg?style=flat)](https://github.com/Tencent/MMKV/blob/master/LICENSE.TXT)
 [![PRs Welcome](https://img.shields.io/badge/PRs-welcome-brightgreen.svg)](https://github.com/Tencent/MMKV/pulls)
-[![Release Version](https://img.shields.io/badge/release-2.4.2-brightgreen.svg)](https://github.com/Tencent/MMKV/releases)
+[![Release Version](https://img.shields.io/badge/release-2.4.3-brightgreen.svg)](https://github.com/Tencent/MMKV/releases)
 [![Platform](https://img.shields.io/badge/Platform-%20Android%20%7C%20iOS-brightgreen.svg)](https://github.com/Tencent/MMKV/wiki/home)
 
 MMKV is an **efficient**, **small**, **easy-to-use** mobile key-value storage framework used in the WeChat application. It's currently available on **Android** and **iOS**.
@@ -26,7 +26,7 @@ Add the following lines to `pubspec.yaml` on your app module. Then run `flutter
 
 ```yaml
 dependencies:
-  mmkv: "^2.4.2"
+  mmkv: "^2.4.3"
 ```
 
 If you already include MMKV native lib in your App, you need to upgrade to version newer than v2.0.0.  
diff --git a/flutter/mmkv/example/android/app/build.gradle b/flutter/mmkv/example/android/app/build.gradle
index 7ad0657c..34999cbe 100644
--- a/flutter/mmkv/example/android/app/build.gradle
+++ b/flutter/mmkv/example/android/app/build.gradle
@@ -52,7 +52,7 @@ android {
     }
 
     dependencies {
-        implementation('com.tencent:mmkv:2.4.2')
+        implementation('com.tencent:mmkv:2.4.3')
 
         constraints {
             implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.8.0") {
diff --git a/flutter/mmkv/pubspec.yaml b/flutter/mmkv/pubspec.yaml
index 7114f784..956864a1 100644
--- a/flutter/mmkv/pubspec.yaml
+++ b/flutter/mmkv/pubspec.yaml
@@ -1,6 +1,6 @@
 name: mmkv
 description: An efficient, small mobile key-value storage framework developed by WeChat. Works on Android & iOS.
-version: 2.4.2
+version: 2.4.3
 homepage: https://github.com/Tencent/mmkv
 repository: https://github.com/Tencent/MMKV/tree/master/flutter/mmkv
 
@@ -13,19 +13,19 @@ dependencies:
     sdk: flutter
   ffi: ^2.0.0
   mmkv_ios:
-    '>=2.4.2 <2.5.0'
+    '>=2.4.3 <2.5.0'
 #    path: ../mmkv_ios
   mmkv_android:
-    '>=2.4.2 <2.5.0'
+    '>=2.4.3 <2.5.0'
 #    path: ../mmkv_android
   mmkv_ohos:
-    '>=2.4.2 <2.5.0'
+    '>=2.4.3 <2.5.0'
 #    path: ../mmkv_ohos
   mmkv_win32:
-    '>=2.4.2 <2.5.0'
+    '>=2.4.3 <2.5.0'
 #    path: ../mmkv_win32
   mmkv_linux:
-    '>=2.4.2 <2.5.0'
+    '>=2.4.3 <2.5.0'
 #    path: ../mmkv_linux
   mmkv_platform_interface:
     '>=2.4.0 <2.5.0'
diff --git a/flutter/mmkv_android/CHANGELOG.md b/flutter/mmkv_android/CHANGELOG.md
index 26c80c45..0d12679f 100644
--- a/flutter/mmkv_android/CHANGELOG.md
+++ b/flutter/mmkv_android/CHANGELOG.md
@@ -1,4 +1,8 @@
 # MMKV Platform Android Change Log
+## v2.4.3 / 2026-10-16
+* Keep up with native lib v2.4.3.
+* Prevent a plugin detach crash when `libmmkv.so` is unavailable for the device ABI ([#1687](https://github.com/tencent/mmkv/pull/1687)).
+
 ## v2.4.2 / 2026-08-21
 Keep up with native lib v2.4.2.
 
diff --git a/flutter/mmkv_android/android/build.gradle b/flutter/mmkv_android/android/build.gradle
index 3533faeb..c613b2b3 100644
--- a/flutter/mmkv_android/android/build.gradle
+++ b/flutter/mmkv_android/android/build.gradle
@@ -34,6 +34,6 @@ android {
     }
 
     dependencies {
-        implementation 'com.tencent:mmkv:[2.4.2, 2.5)'
+        implementation 'com.tencent:mmkv:[2.4.3, 2.5)'
     }
 }
diff --git a/flutter/mmkv_android/pubspec.yaml b/flutter/mmkv_android/pubspec.yaml
index 3cc0be1b..2934496a 100644
--- a/flutter/mmkv_android/pubspec.yaml
+++ b/flutter/mmkv_android/pubspec.yaml
@@ -1,7 +1,7 @@
 name: mmkv_android
 description: Android platform implementation of MMKV.
 repository: https://github.com/Tencent/MMKV/tree/master/flutter/mmkv_android
-version: 2.4.2
+version: 2.4.3
 homepage: https://github.com/Tencent/mmkv
 
 environment:
diff --git a/flutter/mmkv_ios/CHANGELOG.md b/flutter/mmkv_ios/CHANGELOG.md
index 9085b680..1a6639f1 100644
--- a/flutter/mmkv_ios/CHANGELOG.md
+++ b/flutter/mmkv_ios/CHANGELOG.md
@@ -1,4 +1,7 @@
 # MMKV Platform iOS Change Log
+## v2.4.3 / 2026-10-16
+* Keep up with native lib v2.4.3 encryption, expiration, import, and file-recovery fixes.
+
 ## v2.4.2 / 2026-08-21
 * Keep up with native lib v2.4.2.
 * Fix Swift Package Manager linkage and Dart FFI symbol export ([#1676](https://github.com/tencent/mmkv/issues/1676)).
diff --git a/flutter/mmkv_ios/darwin/mmkv_ios.podspec b/flutter/mmkv_ios/darwin/mmkv_ios.podspec
index d5bac2d4..731f69af 100644
--- a/flutter/mmkv_ios/darwin/mmkv_ios.podspec
+++ b/flutter/mmkv_ios/darwin/mmkv_ios.podspec
@@ -5,7 +5,7 @@
 
 Pod::Spec.new do |s|
   s.name             = 'mmkv_ios'
-  s.version          = '2.4.2'
+  s.version          = '2.4.3'
   s.summary          = 'MMKV is a cross-platform key-value storage framework developed by WeChat.'
   s.description      = <<-DESC
   The MMKV, for Flutter.
@@ -22,7 +22,7 @@ Pod::Spec.new do |s|
   s.osx.dependency 'FlutterMacOS'
   s.ios.deployment_target = '13.0'
   s.osx.deployment_target = '10.15'
-  s.dependency 'MMKV', '>= 2.4.2', '< 2.5'
+  s.dependency 'MMKV', '>= 2.4.3', '< 2.5'
   s.osx.framework = 'FlutterMacOS'
 
 # Flutter.framework does not contain a i386 slice.
diff --git a/flutter/mmkv_ios/darwin/mmkv_ios/Package.swift b/flutter/mmkv_ios/darwin/mmkv_ios/Package.swift
index 545d3df8..c6979818 100644
--- a/flutter/mmkv_ios/darwin/mmkv_ios/Package.swift
+++ b/flutter/mmkv_ios/darwin/mmkv_ios/Package.swift
@@ -6,7 +6,7 @@ let mmkvDependency: Package.Dependency
 if let localPath = Context.environment["MMKV_LOCAL_PACKAGE_PATH"], !localPath.isEmpty {
     mmkvDependency = .package(name: "MMKV", path: localPath)
 } else {
-    mmkvDependency = .package(url: "https://github.com/Tencent/MMKV.git", from: "2.4.2")
+    mmkvDependency = .package(url: "https://github.com/Tencent/MMKV.git", from: "2.4.3")
     // mmkvDependency = .package(url: "https://github.com/Tencent/MMKV.git", branch: "dev")
 }
 
diff --git a/flutter/mmkv_ios/pubspec.yaml b/flutter/mmkv_ios/pubspec.yaml
index bb704cdb..645f7b16 100644
--- a/flutter/mmkv_ios/pubspec.yaml
+++ b/flutter/mmkv_ios/pubspec.yaml
@@ -1,7 +1,7 @@
 name: mmkv_ios
 description: iOS platform implementation of MMKV.
 repository: https://github.com/Tencent/MMKV/tree/master/flutter/mmkv_ios
-version: 2.4.2
+version: 2.4.3
 homepage: https://github.com/Tencent/mmkv
 
 environment:
diff --git a/flutter/mmkv_linux/CHANGELOG.md b/flutter/mmkv_linux/CHANGELOG.md
index 9ee6ee36..5f20e050 100644
--- a/flutter/mmkv_linux/CHANGELOG.md
+++ b/flutter/mmkv_linux/CHANGELOG.md
@@ -1,4 +1,8 @@
 # MMKV Platform Linux Change Log
+## v2.4.3 / 2026-10-16
+* Keep up with native lib v2.4.3.
+* Complete short and interrupted file copies, including Linux `sendfile()` transfers.
+
 ## v2.4.2 / 2026-08-21
 Keep up with native lib v2.4.2.
 
diff --git a/flutter/mmkv_linux/linux/CMakeLists.txt b/flutter/mmkv_linux/linux/CMakeLists.txt
index 38098616..0baac60a 100644
--- a/flutter/mmkv_linux/linux/CMakeLists.txt
+++ b/flutter/mmkv_linux/linux/CMakeLists.txt
@@ -9,7 +9,7 @@ project(${PROJECT_NAME} LANGUAGES CXX)
 
 # Set the version of MMKV to use. This should match the version used in the
 # mmkv_flutter plugin.
-set(MMKV_VERSION "v2.4.2")
+set(MMKV_VERSION "v2.4.3")
 
 include(FetchContent)
 FetchContent_Declare(mmkv
diff --git a/flutter/mmkv_linux/pubspec.yaml b/flutter/mmkv_linux/pubspec.yaml
index d3281cb0..67211180 100644
--- a/flutter/mmkv_linux/pubspec.yaml
+++ b/flutter/mmkv_linux/pubspec.yaml
@@ -1,7 +1,7 @@
 name: mmkv_linux
 description: Linux platform implementation of MMKV.
 repository: https://github.com/Tencent/MMKV/tree/master/flutter/mmkv_linux
-version: 2.4.2
+version: 2.4.3
 homepage: https://github.com/Tencent/mmkv
 
 environment:
diff --git a/flutter/mmkv_ohos/CHANGELOG.md b/flutter/mmkv_ohos/CHANGELOG.md
index 6b503df4..8d5cdbbf 100644
--- a/flutter/mmkv_ohos/CHANGELOG.md
+++ b/flutter/mmkv_ohos/CHANGELOG.md
@@ -1,4 +1,8 @@
 # MMKV Platform OHOS Change Log
+## v2.4.3 / 2026-10-16
+* Keep up with native lib v2.4.3.
+* Validate ArrayBuffer slice bounds and typed-array alignment in the native library.
+
 ## v2.4.2 / 2026-08-21
 Keep up with native lib v2.4.2.
 
diff --git a/flutter/mmkv_ohos/ohos/oh-package.json5 b/flutter/mmkv_ohos/ohos/oh-package.json5
index a00368df..7448ac89 100644
--- a/flutter/mmkv_ohos/ohos/oh-package.json5
+++ b/flutter/mmkv_ohos/ohos/oh-package.json5
@@ -1,13 +1,13 @@
 {
   "name": "mmkv_ohos",
-  "version": "2.4.2",
+  "version": "2.4.3",
   "description": "Please describe the basic information.",
   "main": "index.ets",
   "author": "",
   "license": "Apache-2.0",
   "dependencies": {
     "@ohos/flutter_ohos": "file:./har/flutter.har",
-    "@tencent/mmkv": ">=2.4.2 <2.5"
+    "@tencent/mmkv": ">=2.4.3 <2.5"
 //    "@tencent/mmkv": "file:/Users/lingol/Developer/mmkv/OpenHarmony/MMKV/build/default/outputs/default/MMKV.har"
   },
   "devDependencies": {},
diff --git a/flutter/mmkv_ohos/pubspec.yaml b/flutter/mmkv_ohos/pubspec.yaml
index 4e4dec6d..2353a018 100644
--- a/flutter/mmkv_ohos/pubspec.yaml
+++ b/flutter/mmkv_ohos/pubspec.yaml
@@ -1,7 +1,7 @@
 name: mmkv_ohos
 description: OHOS platform implementation of MMKV.
 repository: https://github.com/Tencent/MMKV/tree/master/flutter/mmkv_ohos
-version: 2.4.2
+version: 2.4.3
 homepage: https://github.com/Tencent/mmkv
 
 environment:
diff --git a/flutter/mmkv_win32/CHANGELOG.md b/flutter/mmkv_win32/CHANGELOG.md
index 853a7def..59756d8b 100644
--- a/flutter/mmkv_win32/CHANGELOG.md
+++ b/flutter/mmkv_win32/CHANGELOG.md
@@ -1,4 +1,8 @@
 # MMKV Platform Windows Change Log
+## v2.4.3 / 2026-10-16
+* Keep up with native lib v2.4.3.
+* Require complete whole-file reads and zero-fill writes in the native library.
+
 ## v2.4.2 / 2026-08-21
 Keep up with native lib v2.4.2.
 
diff --git a/flutter/mmkv_win32/pubspec.yaml b/flutter/mmkv_win32/pubspec.yaml
index 394f0ca9..2b4b6706 100644
--- a/flutter/mmkv_win32/pubspec.yaml
+++ b/flutter/mmkv_win32/pubspec.yaml
@@ -1,7 +1,7 @@
 name: mmkv_win32
 description: Windows platform implementation of MMKV.
 repository: https://github.com/Tencent/MMKV/tree/master/flutter/mmkv_win32
-version: 2.4.2
+version: 2.4.3
 homepage: https://github.com/Tencent/mmkv
 
 environment:
diff --git a/flutter/mmkv_win32/windows/CMakeLists.txt b/flutter/mmkv_win32/windows/CMakeLists.txt
index fa83f09f..b41854db 100644
--- a/flutter/mmkv_win32/windows/CMakeLists.txt
+++ b/flutter/mmkv_win32/windows/CMakeLists.txt
@@ -14,7 +14,7 @@ cmake_policy(VERSION 3.14...3.25)
 
 # Set the version of MMKV to use. This should match the version used in the
 # mmkv_flutter plugin.
-set(MMKV_VERSION "v2.4.2")
+set(MMKV_VERSION "v2.4.3")
 
 include(FetchContent)
 FetchContent_Declare(mmkv
diff --git a/iOS/MMKV/MMKV.xcodeproj/project.pbxproj b/iOS/MMKV/MMKV.xcodeproj/project.pbxproj
index 6630b338..df4d092c 100644
--- a/iOS/MMKV/MMKV.xcodeproj/project.pbxproj
+++ b/iOS/MMKV/MMKV.xcodeproj/project.pbxproj
@@ -622,7 +622,7 @@
 				GCC_WARN_UNUSED_VARIABLE = YES;
 				IPHONEOS_DEPLOYMENT_TARGET = 13.0;
 				MACOSX_DEPLOYMENT_TARGET = 10.15;
-				MARKETING_VERSION = 2.4.2;
+				MARKETING_VERSION = 2.4.3;
 				MTL_ENABLE_DEBUG_INFO = YES;
 				ONLY_ACTIVE_ARCH = YES;
 				SUPPORTED_PLATFORMS = "iphonesimulator iphoneos macosx appletvos appletvsimulator";
@@ -681,7 +681,7 @@
 				GCC_WARN_UNUSED_VARIABLE = YES;
 				IPHONEOS_DEPLOYMENT_TARGET = 13.0;
 				MACOSX_DEPLOYMENT_TARGET = 10.15;
-				MARKETING_VERSION = 2.4.2;
+				MARKETING_VERSION = 2.4.3;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				SUPPORTED_PLATFORMS = "iphonesimulator iphoneos macosx appletvos appletvsimulator";
 				TVOS_DEPLOYMENT_TARGET = 13.0;