AWS cli documentation change

Service: cli · 2026-04-25 · Documentation low

File: cli/latest/reference/s3api/copy-object.md

Summary

Updated AWS CLI version from 2.34.34 to 2.34.37 and added documentation for new checksum algorithms (SHA512, MD5, XXHASH64, XXHASH3, XXHASH128) in the response syntax section.

Security assessment

The change adds documentation for additional checksum algorithms that can be used for verifying object integrity during copy operations. While checksums are security features for data integrity verification, there is no evidence this change addresses a specific security vulnerability or incident - it appears to be a feature enhancement expanding supported checksum types.

Diff

diff --git a/cli/latest/reference/s3api/copy-object.md b/cli/latest/reference/s3api/copy-object.md
index d06d6b78b..6253ff6d3 100644
--- a//cli/latest/reference/s3api/copy-object.md
+++ b//cli/latest/reference/s3api/copy-object.md
@@ -15 +15 @@
-  * [AWS CLI 2.34.34 Command Reference](../../index.html) »
+  * [AWS CLI 2.34.37 Command Reference](../../index.html) »
@@ -289,0 +290,5 @@ See also: [AWS API Documentation](https://docs.aws.amazon.com/goto/WebAPI/s3-200
+>   * `SHA512`
+>   * `MD5`
+>   * `XXHASH64`
+>   * `XXHASH3`
+>   * `XXHASH128`
@@ -964,0 +970,20 @@ CopyObjectResult -> (structure)
+> 
+> ChecksumSHA512 -> (string)
+>
+>> The Base64 encoded, 512-bit `SHA512` digest of the object. This checksum is only present if the object was uploaded with the `SHA512` checksum algorithm. For more information, see [Checking object integrity](https://docs.aws.amazon.com/AmazonS3/latest/userguide/checking-object-integrity.html) in the _Amazon S3 User Guide_ .
+> 
+> ChecksumMD5 -> (string)
+>
+>> The Base64 encoded, 128-bit `MD5` digest of the object. This checksum is only present if the object was uploaded with the `MD5` checksum algorithm. For more information, see [Checking object integrity](https://docs.aws.amazon.com/AmazonS3/latest/userguide/checking-object-integrity.html) in the _Amazon S3 User Guide_ .
+> 
+> ChecksumXXHASH64 -> (string)
+>
+>> The Base64 encoded, 64-bit `XXHASH64` checksum of the object. This checksum is only present if the object was uploaded with the `XXHASH64` checksum algorithm. For more information, see [Checking object integrity](https://docs.aws.amazon.com/AmazonS3/latest/userguide/checking-object-integrity.html) in the _Amazon S3 User Guide_ .
+> 
+> ChecksumXXHASH3 -> (string)
+>
+>> The Base64 encoded, 64-bit `XXHASH3` checksum of the object. This checksum is only present if the object was uploaded with the `XXHASH3` checksum algorithm. For more information, see [Checking object integrity](https://docs.aws.amazon.com/AmazonS3/latest/userguide/checking-object-integrity.html) in the _Amazon S3 User Guide_ .
+> 
+> ChecksumXXHASH128 -> (string)
+>
+>> The Base64 encoded, 128-bit `XXHASH128` checksum of the object. This checksum is only present if the object was uploaded with the `XXHASH128` checksum algorithm. For more information, see [Checking object integrity](https://docs.aws.amazon.com/AmazonS3/latest/userguide/checking-object-integrity.html) in the _Amazon S3 User Guide_ .
@@ -1059 +1084 @@ RequestCharged -> (string)
-  * [AWS CLI 2.34.34 Command Reference](../../index.html) »
+  * [AWS CLI 2.34.37 Command Reference](../../index.html) »