NewYour coding agent can read the release notes before it upgrades.Set up the MCP server →
npm · #1252 most downloaded on npm
[](https://www.npmjs.com/package/@aws-sdk/middleware-sdk-s3) [](https://www.npmjs.com/package/@
Last release 12 days ago
22 Sep 2026
Ships on a steady schedule
a new release about every 2 weeks
Nearly every release is documented
notes for 60 of the last 60 stable releases
Nothing withdrawn
no release was ever pulled
7 years old
386 releases · first in 2019
client-bedrock-agent: Removing support for topK property in PromptModelInferenceConfiguration object, Making PromptTemplateConfiguration property as r
One column per quarter.
client-database-migration-service: Introduces DescribeDataMigrations, CreateDataMigration, ModifyDataMigration, DeleteDataMigration, StartDataMigratio
middleware-user-agent: ignore errors from inspecting credentials
client-deadline: Add support for using the template from a previous job during job creation and listing parameter definitions for a job.
codegen: accIdEpMode config resolver generation plugin
scripts: process commits since origin/main in test:e2epreview
s3-request-presigner: enable overriding hoistable headers
Nothing published for this version
core: add compatibility types for submodules
HiddenInstanceTypes and HiddenSageMakerImageVersionAliases attribute to SageMaker API (6b99b6b)codegen: fix setting of default signing name
launchType and sourceIPs fields to GuardDuty findings. (13c3582)Note: Version bump only for package @aws-sdk/middleware-sdk-s3
Note: Version bump only for package @aws-sdk/middleware-sdk-s3
Nothing published for this version
client-cognito-identity: This release adds sensitive trait to some required shapes.
client-opensearchserverless: Added FailureCode and FailureMessage to BatchGetCollectionResponse for BatchGetVPCEResponse for non-Active Collection and
client-sesv2: Marking use case description field of account details as deprecated.
core/httpAuthSchemes: default sigv4aSigningRegionSet to undefined
turbo: remove filtering from build:ci script and improve handling of filtering errors
client-datazone: This releases Data Product feature. Data Products allow grouping data assets into cohesive, self-contained units for ease of publishi
client-bedrock: API and Documentation for Bedrock Model Copy feature. This feature lets you share and copy a custom model from one region to another o
package.json homepage links to use the main branch
homepage links to use the main branch (#6336) (e332230)eventstream-handler-node: start streaming without waiting for response
middleware-sdk-s3: fix error with partially-read Node.js streams
provisioned-memory (c35926b)lib-storage: location in upload result should include custom port
util-dynamodb: perform global interface check in NativeAttributeBinary union
client-ec2: Documentation updates for Elastic Compute Cloud (EC2).
lib-storage: ignore overall data content-length for UploadPart operation
credentials-provider-ini: include general http provider when sourcing EcsContainer credentials
client-ec2: ec2 query no longer serialize empty lists
credential-providers: use latest version for client peerDependencies
client-eventbridge: Amazon EventBridge introduces KMS customer-managed key (CMK) encryption support for custom and partner events published on EventBr
client-cognito-identity-provider: Add EXTERNAL_PROVIDER enum value to UserStatusType.
clients: add deps required by default credential providers
client-dynamodb: This release adds support to specify an optional, maximum OnDemandThroughput for DynamoDB tables and global secondary indexes in the
client-bedrock-agent: This release adds support for using MongoDB Atlas as a vector store when creating a knowledge base.
codegen: add doc trait conditionally
client-codebuild: Add new webhook filter types for GitHub webhooks
client-backup: This release introduces a boolean attribute ManagedByAWSBackupOnly as part of ListRecoveryPointsByResource api to filter the recovery p
client-ivs-realtime: adds support for multiple new composition layout configuration options (grid, pip)
middleware-sdk-s3: restore bucketEndpoint configurability
core: add error metadata indicating clock skew correction
client-rds: Add pattern and length based validations for DBShardGroupIdentifier
client-sts: pass parent logger & requestHandler to STS
credential-provider-node: pass client region to inner credential client region
middleware-sdk-s3: do not warn when content-length is 0
client-storage-gateway: Add DeprecationDate and SoftwareVersion to response of ListGateways.
get full list of exports for esm compat in dist-cjs
client-b2bi: Increasing TestMapping inputFileContent file size limit to 5MB and adding file size limit 250KB for TestParsing input file. This release
dependency check script and undeclared dependencies
client-connect: Amazon Connect, Contact Lens Evaluation API increase evaluation notes max length to 3072.
middleware-compression: add missing @aws-sdk prefix in package name
clients: update client endpoints as of 2023-12-26
middleware-sdk-s3: safely access nested properties for error
experimentalIdentityAndAuth AWS SDK SigV4 support (#5586) (9a97df5)[@smithy](https://github.com/smithy).rules#endpointRuleSet auth scheme providers (#5579) (3814163)client-workspaces-thin-client: add compatibility alias
client-backup: AWS Backup - Features: Add VaultType to the output of DescribeRecoveryPoint, ListRecoveryPointByBackupVault API and add ResourceType to
client-qconnect: This release adds the PutFeedback API and allows providing feedback against the specified assistant for the specified target.
lib-storage: use correct return type for done()
client-elasticache: Launching Amazon ElastiCache Serverless that enables you to create a cache in under a minute without any capacity management. Elas
client-backup: AWS Backup - Features: Provide Job Summary for your backup activity.
[@smithy](https://github.com/smithy).api#httpBearerAuth (#5271) (2e1ac5b)client-controltower: AWS Control Tower supports tagging for enabled controls. This release introduces TagResource, UntagResource and ListTagsForResour
middleware-sdk-s3: remove error name check to allow for region redirect for HEAD operations
codegen: use partial record for enum keyed types
Your coding agent can read these notes before it upgrades. Set up the MCP server →