awslabs · TingDaoK · Nov 20, 2025 · Nov 7, 2025 · Nov 7, 2025 · Nov 17, 2025
diff --git a/crt/aws-c-auth b/crt/aws-c-auth
diff --git a/crt/aws-c-cal b/crt/aws-c-cal
diff --git a/crt/aws-c-common b/crt/aws-c-common
diff --git a/crt/aws-c-s3 b/crt/aws-c-s3
diff --git a/src/main/java/software/amazon/awssdk/crt/s3/S3ClientOptions.java b/src/main/java/software/amazon/awssdk/crt/s3/S3ClientOptions.java
@@ -148,6 +148,18 @@ public AwsSigningConfig getSigningConfig() {
         return signingConfig;
     }
 
+    /**
+     * Sets the size, in bytes, of parts that files will be downloaded or uploaded in.
+     * If not set, a dynamic default part size will be used based on the throughputTargetGbps, memoryLimitInBytes and initialReadWindowSize
+     * to utilize the available resource and get the best performance.
+     *
+     * Notes: For PUT_OBJECT requests, the client will automatically adjust the part size to meet service limits:
+     *   - Maximum number of parts per upload is 10,000
+     *   - Minimum upload part size is 5 MiB
+     *
+     * @param partSize size in bytes of parts for downloads and uploads
+     * @return this
+     */
     public S3ClientOptions withPartSize(long partSize) {
         this.partSize = partSize;
         return this;
@@ -358,7 +370,7 @@ public S3ExpressCredentialsProviderFactory getS3ExpressCredentialsProviderFactor
      * The amount of memory the CRT client is allowed to use.
      * The client makes a best-effort attempt at memory limiting but might exceed this limit in some cases.
      * If not provided, the client calculates this optimally from other settings, such as targetThroughput.
-     * On a 64-bit system, the default is between 2Gib-8Gib.
+     * On a 64-bit system, the default is between 2Gib-24Gib.
      * It must be at least 1GiB and will be capped to SIZE_MAX of the system.
      * @param memoryLimitBytes Memory limit in bytes.
      * @return this
+10 −0		include/aws/auth/auth.h
+78 −2		include/aws/auth/credentials.h
+160 −0		include/aws/auth/private/aws_http_credentials_provider.h
+7 −1		include/aws/auth/private/credentials_utils.h
+172 −0		include/aws/auth/private/login_token_utils.h
+30 −0		source/auth.c
+470 −0		source/aws_http_credentials_provider.c
+472 −0		source/credentials_provider_login.c
+218 −617		source/credentials_provider_sso.c
+3 −1		source/credentials_provider_sts.c
+3 −1		source/credentials_provider_sts_web_identity.c
+22 −7		source/credentials_utils.c
+1,134 −0		source/login_token_utils.c
+13 −0		tests/CMakeLists.txt
+770 −0		tests/credentials_provider_login_tests.c
+28 −10		tests/credentials_utils_tests.c
+0 −7		include/aws/cal/ecc.h
+26 −54		source/darwin/securityframework_ecc.c
+47 −0		source/ecc.c
+2 −2		source/unix/opensslcrypto_ecc.c
+2 −2		source/windows/bcrypt_ecc.c
+0 −4		CMakeLists.txt
+0 −7		cmake/AwsThreadName.cmake
+18 −0		include/aws/common/encoding.h
+4 −0		include/aws/common/platform.h
+17 −0		include/aws/common/system_info.h
+13 −4		source/arch/intel/encoding_avx2.c
+1 −0		source/byte_buf.c
+127 −47		source/encoding.c
+7 −4		source/posix/system_info.c
+36 −0		source/system_info.c
+10 −0		tests/CMakeLists.txt
+143 −28		tests/encoding_test.c
+30 −1		tests/system_info_tests.c
+2 −0		.github/workflows/ci.yml
+1 −0		CMakeLists.txt
+45 −8		README.md
+13 −0		include/aws/s3/private/s3_auto_ranged_get.h
+11 −1		include/aws/s3/private/s3_client_impl.h
+70 −0		include/aws/s3/private/s3_default_buffer_pool.h
+23 −0		include/aws/s3/private/s3_meta_request_impl.h
+12 −2		include/aws/s3/private/s3_request.h
+73 −1		include/aws/s3/private/s3_util.h
+53 −0		include/aws/s3/s3_buffer_pool.h
+36 −2		include/aws/s3/s3_client.h
+131 −25		source/s3_auto_ranged_get.c
+47 −32		source/s3_auto_ranged_put.c
+27 −0		source/s3_buffer_pool.c
+154 −42		source/s3_client.c
+379 −129		source/s3_default_buffer_pool.c
+7 −0		source/s3_default_meta_request.c
+5,201 −4,040		source/s3_endpoint_resolver/aws_s3_endpoint_rule_set.c
+42 −3		source/s3_meta_request.c
+32 −0		source/s3_request.c
+287 −30		source/s3_util.c
+52 −1		tests/CMakeLists.txt
+373 −0		tests/fuzz/fuzz_buffer_pool_special_size.c
+282 −0		tests/fuzz/fuzz_buffer_pool_special_size_keep_pending.c
+70 −0		tests/fuzz/fuzz_extract_parts_from_etag.c
+129 −0		tests/fuzz/fuzz_optimal_range_size.c
+2 −1		tests/mock_s3_server/mock_s3_server.py
+533 −0		tests/s3_buffer_pool_special_size_tests.c
+46 −15		tests/s3_cancel_tests.c
+181 −0		tests/s3_client_memory_limit_env_var_test.c
+75 −0		tests/s3_client_test.c
+537 −36		tests/s3_data_plane_tests.c
+253 −0		tests/s3_max_active_connections_override_test.c
+1 −1		tests/s3_meta_request_test.c
+9 −9		tests/s3_mock_server_tests.c
+13 −7		tests/s3_tester.c
+9 −0		tests/s3_tester.h
+269 −6		tests/s3_util_tests.c