diff --git a/AWSCore/Service/AWSService.m b/AWSCore/Service/AWSService.m
index 82960d9f668..395ae301564 100644
--- a/AWSCore/Service/AWSService.m
+++ b/AWSCore/Service/AWSService.m
@@ -260,6 +260,7 @@ - (id)copyWithZone:(NSZone *)zone {
 static NSString *const AWSRegionNameAPSoutheast2 = @"ap-southeast-2";
 static NSString *const AWSRegionNameAPSoutheast3 = @"ap-southeast-3";
 static NSString *const AWSRegionNameAPSoutheast4 = @"ap-southeast-4";
+static NSString *const AWSRegionNameAPSoutheast5 = @"ap-southeast-5";
 static NSString *const AWSRegionNameAPSouth1 = @"ap-south-1";
 static NSString *const AWSRegionNameAPSouth2 = @"ap-south-2";
 static NSString *const AWSRegionNameSAEast1 = @"sa-east-1";
@@ -478,6 +479,8 @@ + (NSString *)regionNameFromType:(AWSRegionType)regionType {
             return AWSRegionNameAPSoutheast3;
         case AWSRegionAPSoutheast4:
             return AWSRegionNameAPSoutheast4;
+        case AWSRegionAPSoutheast5:
+            return AWSRegionNameAPSoutheast5;
         case AWSRegionAPNortheast1:
             return AWSRegionNameAPNortheast1;
         case AWSRegionAPNortheast2:
diff --git a/AWSCore/Service/AWSServiceEnum.h b/AWSCore/Service/AWSServiceEnum.h
index 16aa14c10c8..074bd42f16c 100644
--- a/AWSCore/Service/AWSServiceEnum.h
+++ b/AWSCore/Service/AWSServiceEnum.h
@@ -83,6 +83,10 @@ typedef NS_ENUM(NSInteger, AWSRegionType) {
      * Asia Pacific (Melbourne)
      */
     AWSRegionAPSoutheast4 NS_SWIFT_NAME(APSoutheast4),
+    /**
+     * Asia Pacific (Malaysia)
+     */
+    AWSRegionAPSoutheast5 NS_SWIFT_NAME(APSoutheast5),
     /**
      *  Asia Pacific (Mumbai)
      */
diff --git a/AWSCore/Utility/AWSCategory.m b/AWSCore/Utility/AWSCategory.m
index cd0077d681d..8cd95235906 100644
--- a/AWSCore/Utility/AWSCategory.m
+++ b/AWSCore/Utility/AWSCategory.m
@@ -530,6 +530,11 @@ - (AWSRegionType)aws_regionTypeValue {
         || [self isEqualToString:@"ap-southeast-4"]) {
         return AWSRegionAPSoutheast4;
     }
+    if ([self isEqualToString:@"AWSRegionAPSoutheast5"]
+        || [self isEqualToString:@"APSoutheast5"]
+        || [self isEqualToString:@"ap-southeast-5"]) {
+        return AWSRegionAPSoutheast5;
+    }
     if ([self isEqualToString:@"AWSRegionAPSouth1"]
         || [self isEqualToString:@"APSouth1"]
         || [self isEqualToString:@"ap-south-1"]) {
diff --git a/AWSS3/AWSS3Model.h b/AWSS3/AWSS3Model.h
index e343b1cbc13..e2a6bf9fd1d 100644
--- a/AWSS3/AWSS3Model.h
+++ b/AWSS3/AWSS3Model.h
@@ -70,6 +70,7 @@ typedef NS_ENUM(NSInteger, AWSS3BucketLocationConstraint) {
     AWSS3BucketLocationConstraintAPSoutheast2,
     AWSS3BucketLocationConstraintAPSoutheast3,
     AWSS3BucketLocationConstraintAPSoutheast4,
+    AWSS3BucketLocationConstraintAPSoutheast5,
     AWSS3BucketLocationConstraintCACentral1,
     AWSS3BucketLocationConstraintCAWest1,
     AWSS3BucketLocationConstraintCNNorth1,
diff --git a/AWSS3/AWSS3Model.m b/AWSS3/AWSS3Model.m
index da3b5287ae4..72d3721ce7d 100644
--- a/AWSS3/AWSS3Model.m
+++ b/AWSS3/AWSS3Model.m
@@ -1226,6 +1226,9 @@ + (NSValueTransformer *)locationConstraintJSONTransformer {
         if ([value caseInsensitiveCompare:@"ap-southeast-4"] == NSOrderedSame) {
             return @(AWSS3BucketLocationConstraintAPSoutheast4);
         }
+        if ([value caseInsensitiveCompare:@"ap-southeast-5"] == NSOrderedSame) {
+            return @(AWSS3BucketLocationConstraintAPSoutheast5);
+        }
         if ([value caseInsensitiveCompare:@"ca-central-1"] == NSOrderedSame) {
             return @(AWSS3BucketLocationConstraintCACentral1);
         }
@@ -1319,6 +1322,8 @@ + (NSValueTransformer *)locationConstraintJSONTransformer {
                 return @"ap-southeast-3";
             case AWSS3BucketLocationConstraintAPSoutheast4:
                 return @"ap-southeast-4";
+            case AWSS3BucketLocationConstraintAPSoutheast5:
+                return @"ap-southeast-5";
             case AWSS3BucketLocationConstraintCACentral1:
                 return @"ca-central-1";
             case AWSS3BucketLocationConstraintCAWest1:
@@ -2844,6 +2849,9 @@ + (NSValueTransformer *)locationConstraintJSONTransformer {
         if ([value caseInsensitiveCompare:@"ap-southeast-4"] == NSOrderedSame) {
             return @(AWSS3BucketLocationConstraintAPSoutheast4);
         }
+        if ([value caseInsensitiveCompare:@"ap-southeast-5"] == NSOrderedSame) {
+            return @(AWSS3BucketLocationConstraintAPSoutheast5);
+        }
         if ([value caseInsensitiveCompare:@"ca-central-1"] == NSOrderedSame) {
             return @(AWSS3BucketLocationConstraintCACentral1);
         }
@@ -2937,6 +2945,8 @@ + (NSValueTransformer *)locationConstraintJSONTransformer {
                 return @"ap-southeast-3";
             case AWSS3BucketLocationConstraintAPSoutheast4:
                 return @"ap-southeast-4";
+            case AWSS3BucketLocationConstraintAPSoutheast5:
+                return @"ap-southeast-5";
             case AWSS3BucketLocationConstraintCACentral1:
                 return @"ca-central-1";
             case AWSS3BucketLocationConstraintCAWest1:
diff --git a/AWSS3/AWSS3Resources.m b/AWSS3/AWSS3Resources.m
index def6d7b2a1f..d515ed81e0c 100644
--- a/AWSS3/AWSS3Resources.m
+++ b/AWSS3/AWSS3Resources.m
@@ -1375,6 +1375,7 @@ - (NSString *)definitionString {
         \"ap-southeast-2\",\
         \"ap-southeast-3\",\
         \"ap-southeast-4\",\
+        \"ap-southeast-5\",\
         \"ca-central-1\",\
         \"ca-west-1\",\
         \"cn-north-1\",\
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 432e7899fe3..6978f7e8060 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,7 +2,9 @@
 
 ## Unreleased
 
--Features for next release
+### New features
+- **AWSCore**
+  - Support for `ap-southeast-5` - Asia Pacific (Malaysia) (see [AWS Regional Services List](https://aws.amazon.com/about-aws/global-infrastructure/regional-product-services/) for a list of services supported in the region)
 
 ## 2.36.7