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PyPI · #17 most downloaded on PyPI
Low-level, data-driven core of boto 3.
Last release 4 days ago
02 Oct 2026
Ships on a steady schedule
a new release about every 8 days
Nearly every release is documented
notes for 60 of the last 60 stable releases
Nothing withdrawn
no release was ever pulled
14 years old
2530 releases · first in 2012
api-change:ses: Update ses client to latest version
api-change:ses: Update ses client to latest version
api-change:pinpoint: Update pinpoint client to latest version
api-change:codedeploy: Update codedeploy client to latest version
api-change:config: Update config client to latest version
api-change:ssm: Update ssm client to latest version
api-change:ssm: Update ssm client to latest version
api-change:inspector: Update inspector client to latest version
One column per quarter.
api-change:ec2: Update ec2 client to latest version
api-change:ec2: Update ec2 client to latest version
api-change:kinesisanalytics: Update kinesisanalytics client to latest version
api-change:dynamodb: Update dynamodb client to latest version
api-change:dynamodb: Update dynamodb client to latest version
api-change:ec2: Update ec2 client to latest version
api-change:cloudwatch: Update cloudwatch client to latest version
api-change:clouddirectory: Update clouddirectory client to latest version
api-change:clouddirectory: Update clouddirectory client to latest version
api-change:cloudformation: Update cloudformation client to latest version
api-change:appstream: Update appstream client to latest version
api-change:appstream: Update appstream client to latest version
api-change:ec2: Update ec2 client to latest version
api-change:emr: Update emr client to latest version
api-change:emr: Update emr client to latest version
api-change:budgets: Update budgets client to latest version
api-change:budgets: Update budgets client to latest version
api-change:lambda: Update lambda client to latest version
api-change:lambda: Update lambda client to latest version
bugfix:Paginator: Fixed a bug causing running build_full_results multiple times to incorrectly generate the NextToken value.
api-change:cognito-idp: Update cognito-idp client to latest version
api-change:discovery: Update discovery client to latest version
api-change:discovery: Update discovery client to latest version
api-change:ec2: Update ec2 client to latest version
api-change:marketplacecommerceanalytics: Update marketplacecommerceanalytics client to latest version
api-change:ec2: Update ec2 client to latest version
api-change:ec2: Update ec2 client to latest version
api-change:apigateway: Update apigateway client to latest version
api-change:lex-models: Update lex-models client to latest version
enhancement:SSM: Added a paginator for describe_parameters.
enhancement:SSM: Added a paginator for describe_parameters.
enchancement:Organizations: Added paginators for Organizations.
enhancement:IoT: Add paginators for IoT.
api-change:swf: Update swf client to latest version
api-change:autoscaling: Update autoscaling client to latest version
enhancement:Athena: Added paginators for Athena.
api-change:kinesis: Update kinesis client to latest version
api-change:kinesis: Update kinesis client to latest version
api-change:kms: Update kms client to latest version
api-change:ds: Update ds client to latest version
api-change:ssm: Update ssm client to latest version
api-change:cloudwatch: Update cloudwatch client to latest version
api-change:cloudwatch: Update cloudwatch client to latest version
api-change:route53: Update route53 client to latest version
api-change:s3: Update s3 client to latest version
api-change:s3: Update s3 client to latest version
api-change:marketplacecommerceanalytics: Update marketplacecommerceanalytics client to latest version
api-change:ssm: Update ssm client to latest version
api-change:ssm: Update ssm client to latest version
api-change:gamelift: Update gamelift client to latest version
api-change:events: Update events client to latest version
bugfix:Config: Fixes a bug resulting from copy/deepcopy not returning the same object for botocore.UNSIGNED. Fixes boto/boto3#1144 __
bugfix:Config: Fixes a bug resulting from copy/deepcopy not returning the same object for botocore.UNSIGNED. Fixes boto/boto3`#1144 <https://github.com/boto/botocore/issues/1144>`__
api-change:servicecatalog: Update servicecatalog client to latest version
api-change:lambda: Update lambda client to latest version
api-change:lambda: Update lambda client to latest version
api-change:lightsail: Update lightsail client to latest version
api-change:lightsail: Update lightsail client to latest version
api-change:route53: Update route53 client to latest version
api-change:codepipeline: Update codepipeline client to latest version
api-change:dms: Update dms client to latest version
api-change:dax: Update dax client to latest version
api-change:dax: Update dax client to latest version
api-change:waf: Update waf client to latest version
api-change:ssm: Update ssm client to latest version
api-change:route53: Update route53 client to latest version
api-change:waf-regional: Update waf-regional client to latest version
api-change:workdocs: Update workdocs client to latest version
api-change:workdocs: Update workdocs client to latest version
enhancement:s3: All S3 requests will now use SigV4 by default so that we can take advantage of stronger security algorithms and improved access key is
enhancement:s3: All S3 requests will now use SigV4 by default so that we can take advantage of stronger security algorithms and improved access key isolation.
api-change:organizations: Update organizations client to latest version
api-change:xray: Update xray client to latest version
api-change:xray: Update xray client to latest version
api-change:iot: Update iot client to latest version
api-change:iot: Update iot client to latest version
api-change:servicecatalog: Update servicecatalog client to latest version
api-change:ecs: Update ecs client to latest version
api-change:ec2: Update ec2 client to latest version
api-change:clouddirectory: Update clouddirectory client to latest version
api-change:clouddirectory: Update clouddirectory client to latest version
api-change:application-autoscaling: Update application-autoscaling client to latest version
api-change:config: Update config client to latest version
api-change:config: Update config client to latest version
api-change:rds: Update rds client to latest version
api-change:rds: Update rds client to latest version
api-change:opsworks: Update opsworks client to latest version
api-change:opsworks: Update opsworks client to latest version
api-change:rekognition: Update rekognition client to latest version
api-change:rekognition: Update rekognition client to latest version
api-change:iot: Update iot client to latest version
api-change:pinpoint: Update pinpoint client to latest version
api-change:greengrass: Update greengrass client to latest version
api-change:greengrass: Update greengrass client to latest version
api-change:codebuild: Update codebuild client to latest version
api-change:cloudfront: Update cloudfront client to latest version
api-change:cloudfront: Update cloudfront client to latest version
api-change:iot: Update iot client to latest version
api-change:acm: Update acm client to latest version
api-change:iot: Update iot client to latest version
api-change:iot: Update iot client to latest version
api-change:appstream: Update appstream client to latest version
api-change:workdocs: Update workdocs client to latest version
api-change:workdocs: Update workdocs client to latest version
api-change:kinesisanalytics: Update kinesisanalytics client to latest version
api-change:cognito-idp: Update cognito-idp client to latest version
api-change:cognito-idp: Update cognito-idp client to latest version
api-change:codedeploy: Update codedeploy client to latest version
api-change:lex-models: Update lex-models client to latest version
api-change:elbv2: Update elbv2 client to latest version
api-change:rds: Update rds client to latest version
api-change:rds: Update rds client to latest version
api-change:clouddirectory: Update clouddirectory client to latest version
api-change:clouddirectory: Update clouddirectory client to latest version
api-change:appstream: Update appstream client to latest version
api-change:appstream: Update appstream client to latest version
api-change:rekognition: Update rekognition client to latest version
api-change:storagegateway: Update storagegateway client to latest version
api-change:storagegateway: Update storagegateway client to latest version
api-change:iam: Update iam client to latest version
api-change:sts: Update sts client to latest version
api-change:dms: Update dms client to latest version
api-change:dms: Update dms client to latest version
api-change:resourcegroupstaggingapi: Update resourcegroupstaggingapi client to latest version
api-change:resourcegroupstaggingapi: Update resourcegroupstaggingapi client to latest version
api-change:athena: Update athena client to latest version
api-change:athena: Update athena client to latest version
api-change:lightsail: Update lightsail client to latest version
api-change:polly: Update polly client to latest version
api-change:polly: Update polly client to latest version
api-change:autoscaling: Update autoscaling client to latest version
api-change:events: Update events client to latest version
api-change:logs: Update logs client to latest version
api-change:gamelift: Update gamelift client to latest version
api-change:gamelift: Update gamelift client to latest version
api-change:codedeploy: Update codedeploy client to latest version
api-change:inspector: Update inspector client to latest version
api-change:kms: Update kms client to latest version
api-change:ssm: Update ssm client to latest version
api-change:ssm: Update ssm client to latest version
api-change:lex-models: Update lex-models client to latest version
api-change:lex-models: Update lex-models client to latest version
api-change:elb: Update elb client to latest version
api-change:organizations: Update organizations client to latest version
api-change:elbv2: Update elbv2 client to latest version
api-change:codestar: Update codestar client to latest version
api-change:codestar: Update codestar client to latest version
api-change:workspaces: Update workspaces client to latest version
enhancement:Credentials: Add support for environment variable credential expiration.
api-change:marketplace-entitlement: Update marketplace-entitlement client to latest version
api-change:marketplace-entitlement: Update marketplace-entitlement client to latest version
api-change:lambda: Update lambda client to latest version
api-change:ecs: Update ecs client to latest version
api-change:cloudformation: Update cloudformation client to latest version
api-change:cloudformation: Update cloudformation client to latest version
api-change:snowball: Update snowball client to latest version
api-change:sqs: Update sqs client to latest version
api-change:rekognition: Update rekognition client to latest version
bugfix:Paginator: Fixes bug where pagination would fail if the pagination token contained bytes.
api-change:rds: Update rds client to latest version
enhancement:rds: Add rds database presigner.
enhancement:rds: Add rds database presigner.
api-change:rds: Update rds client to latest version
api-change:appstream: Update appstream client to latest version
api-change:appstream: Update appstream client to latest version
bugfix:Auth: Fix bug in Signature Version 4 signer when a header value has consecutive spaces
api-change:kinesis: Update kinesis client to latest version
api-change:route53: Update route53 client to latest version
api-change:route53: Update route53 client to latest version
api-change:directconnect: Update directconnect client to latest version
api-change:devicefarm: Update devicefarm client to latest version
api-change:kms: Update kms client to latest version
api-change:route53domains: Update route53domains client to latest version
api-change:codestar: Update codestar client to latest version
api-change:codestar: Update codestar client to latest version
api-change:lambda: Update lambda client to latest version
api-change:apigateway: Update apigateway client to latest version
api-change:lex-models: Update lex-models client to latest version
api-change:iam: Update iam client to latest version
api-change:rekognition: Update rekognition client to latest version
api-change:polly: Update polly client to latest version
api-change:ec2: Update ec2 client to latest version
bugfix:mturk: Fix naming on list_hits_for_qualification_type for mturk. The old method name will still be supported.
bugfix:mturk: Fix naming on list_hits_for_qualification_type for mturk. The old method name will still be supported.
api-change:lambda: Update lambda client to latest version
api-change:gamelift: Update gamelift client to latest version
api-change:gamelift: Update gamelift client to latest version
api-change:batch: Update batch client to latest version
api-change:apigateway: Update apigateway client to latest version
api-change:opsworks: Update opsworks client to latest version
api-change:redshift: Update redshift client to latest version
api-change:redshift: Update redshift client to latest version
api-change:elbv2: Update elbv2 client to latest version
api-change:elbv2: Update elbv2 client to latest version
api-change:elasticache: Update elasticache client to latest version
api-change:elasticache: Update elasticache client to latest version
api-change:cloudwatch: Update cloudwatch client to latest version
api-change:cloudwatch: Update cloudwatch client to latest version
api-change:lex-runtime: Update lex-runtime client to latest version
api-change:lex-runtime: Update lex-runtime client to latest version
api-change:clouddirectory: Update clouddirectory client to latest version
api-change:clouddirectory: Update clouddirectory client to latest version
Your coding agent can read these notes before it upgrades. Set up the MCP server →