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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Nothing withdrawn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:s3: Update s3 client to latest version
api-change:s3: Update s3 client to latest version
api-change:dms: Update dms client to latest version
api-change:rds: Update rds client to latest version
api-change:elbv2: Update elbv2 client to latest version
api-change:application-autoscaling: Update application-autoscaling client to latest version
api-change:opsworkscm: Update opsworkscm client to latest version
api-change:opsworkscm: Update opsworkscm client to latest version
api-change:route53: Update route53 client to latest version
api-change:glue: Update glue client to latest version
api-change:organizations: Update organizations client to latest version
api-change:application-autoscaling: Update application-autoscaling client to latest version
api-change:ec2: Update ec2 client to latest version
One column per quarter.
api-change:ses: Update ses client to latest version
api-change:ses: Update ses client to latest version
api-change:apigateway: Update apigateway client to latest version
api-change:stepfunctions: Update stepfunctions client to latest version
api-change:polly: Update polly client to latest version
api-change:ecs: Update ecs client to latest version
api-change:ecs: Update ecs client to latest version
api-change:lightsail: Update lightsail client to latest version
api-change:ssm: Update ssm client to latest version
api-change:route53: Update route53 client to latest version
api-change:ec2: Update ec2 client to latest version
api-change:ec2: Update ec2 client to latest version
api-change:application-autoscaling: Update application-autoscaling client to latest version
api-change:application-autoscaling: Update application-autoscaling client to latest version
api-change:elasticache: Update elasticache client to latest version
api-change:batch: Update batch client to latest version
api-change:ec2: Update ec2 client to latest version
api-change:elbv2: Update elbv2 client to latest version
api-change:elbv2: Update elbv2 client to latest version
api-change:s3: Update s3 client to latest version
api-change:rds: Update rds client to latest version
api-change:stepfunctions: Update stepfunctions client to latest version
api-change:stepfunctions: Update stepfunctions client to latest version
api-change:ec2: Update ec2 client to latest version
api-change:kms: Update kms client to latest version
api-change:organizations: Update organizations client to latest version
api-change:pricing: Update pricing client to latest version
api-change:ecs: Update ecs client to latest version
api-change:ecs: Update ecs client to latest version
api-change:apigateway: Update apigateway client to latest version
api-change:apigateway: Update apigateway client to latest version
api-change:acm: Update acm client to latest version
api-change:acm: Update acm client to latest version
api-change:cloudhsmv2: Update cloudhsmv2 client to latest version
api-change:directconnect: Update directconnect client to latest version
api-change:ec2: Update ec2 client to latest version
api-change:ec2: Update ec2 client to latest version
api-change:cloudfront: Update cloudfront client to latest version
api-change:elasticache: Update elasticache client to latest version
api-change:elasticache: Update elasticache client to latest version
api-change:pinpoint: Update pinpoint client to latest version
api-change:config: Update config client to latest version
api-change:glue: Update glue client to latest version
api-change:organizations: Update organizations client to latest version
api-change:organizations: Update organizations client to latest version
api-change:ec2: Update ec2 client to latest version
api-change:ec2: Update ec2 client to latest version
api-change:ssm: Update ssm client to latest version
api-change:ssm: Update ssm client to latest version
bugfix:sigv4: Strip out the default port and http auth info when computing the host header for sigv4 signing.
api-change:sqs: Update sqs client to latest version
api-change:lightsail: Update lightsail client to latest version
api-change:lightsail: Update lightsail client to latest version
api-change:es: Update es client to latest version
api-change:es: Update es client to latest version
api-change:waf: Update waf client to latest version
api-change:waf: Update waf client to latest version
api-change:cloudhsm: Update cloudhsm client to latest version
api-change:es: Update es client to latest version
api-change:ec2: Update ec2 client to latest version
api-change:waf-regional: Update waf-regional client to latest version
api-change:rds: Update rds client to latest version
api-change:polly: Update polly client to latest version
api-change:polly: Update polly client to latest version
api-change:dms: Update dms client to latest version
api-change:codecommit: Update codecommit client to latest version
api-change:elasticbeanstalk: Update elasticbeanstalk client to latest version
bugfix:Paginator: Fixes an issue when build_full_result is used repeatedly that results in the same token being returned multiple times.
api-change:rds: Update rds client to latest version
api-change:ecr: Update ecr client to latest version
api-change:ecr: Update ecr client to latest version
api-change:ses: Update ses client to latest version
api-change:ec2: Update ec2 client to latest version
api-change:ec2: Update ec2 client to latest version
api-change:elbv2: Update elbv2 client to latest version
api-change:opsworkscm: Update opsworkscm client to latest version
api-change:sqs: Update sqs client to latest version
api-change:sqs: Update sqs client to latest version
bugfix:serializer: Update query serializer to automatically include the application/x-www-form-urlencoded; charset=utf-8 Content-Type header.
api-change:redshift: Update redshift client to latest version
api-change:redshift: Update redshift client to latest version
api-change:route53domains: Update route53domains client to latest version
api-change:route53domains: Update route53domains client to latest version
api-change:kinesisanalytics: Update kinesisanalytics client to latest version
api-change:ssm: Update ssm client to latest version
api-change:ssm: Update ssm client to latest version
api-change:ec2: Update ec2 client to latest version
api-change:cloudhsm: Update cloudhsm client to latest version
api-change:cloudhsm: Update cloudhsm client to latest version
api-change:organizations: Update organizations client to latest version
api-change:organizations: Update organizations client to latest version
api-change:route53: Update route53 client to latest version
api-change:codebuild: Update codebuild client to latest version
api-change:mturk: Update mturk client to latest version
api-change:appstream: Update appstream client to latest version
api-change:pinpoint: Update pinpoint client to latest version
api-change:pinpoint: Update pinpoint client to latest version
api-change:cloudformation: Update cloudformation client to latest version
api-change:cloudformation: Update cloudformation client to latest version
api-change:config: Update config client to latest version
api-change:config: Update config client to latest version
api-change:ecs: Update ecs client to latest version
api-change:rds: Update rds client to latest version
api-change:ec2: Update ec2 client to latest version
api-change:ec2: Update ec2 client to latest version
api-change:logs: Update logs client to latest version
api-change:budgets: Update budgets client to latest version
api-change:appstream: Update appstream client to latest version
api-change:appstream: Update appstream client to latest version
api-change:greengrass: Update greengrass client to latest version
api-change:rds: Update rds client to latest version
api-change:codepipeline: Update codepipeline client to latest version
api-change:lex-runtime: Update lex-runtime client to latest version
api-change:ec2: Update ec2 client to latest version
api-change:ec2: Update ec2 client to latest version
api-change:ec2: Update ec2 client to latest version
api-change:ec2: Update ec2 client to latest version
api-change:iam: Update iam client to latest version
api-change:ses: Update ses client to latest version
api-change:apigateway: Update apigateway client to latest version
api-change:apigateway: Update apigateway client to latest version
api-change:servicecatalog: Update servicecatalog client to latest version
api-change:servicecatalog: Update servicecatalog client to latest version
api-change:codebuild: Update codebuild client to latest version
api-change:organizations: Update organizations client to latest version
api-change:autoscaling: Update autoscaling client to latest version
api-change:autoscaling: Update autoscaling client to latest version
api-change:ec2: Update ec2 client to latest version
api-change:batch: Update batch client to latest version
api-change:events: Update events client to latest version
api-change:ec2: Update ec2 client to latest version
api-change:ec2: Update ec2 client to latest version
api-change:devicefarm: Update devicefarm client to latest version
api-change:devicefarm: Update devicefarm client to latest version
api-change:logs: Update logs client to latest version
api-change:logs: Update logs client to latest version
api-change:ec2: Update ec2 client to latest version
api-change:ec2: Update ec2 client to latest version
api-change:lex-models: Update lex-models client to latest version
api-change:application-autoscaling: Update application-autoscaling client to latest version
api-change:elbv2: Update elbv2 client to latest version
api-change:route53: Update route53 client to latest version
api-change:budgets: Update budgets client to latest version
api-change:budgets: Update budgets client to latest version
api-change:codestar: Update codestar client to latest version
api-change:codestar: Update codestar client to latest version
api-change:ssm: Update ssm client to latest version
api-change:ssm: Update ssm client to latest version
api-change:mobile: Update mobile client to latest version
api-change:gamelift: Update gamelift client to latest version
api-change:codebuild: Update codebuild client to latest version
api-change:codebuild: Update codebuild client to latest version
api-change:ec2: Update ec2 client to latest version
api-change:elbv2: Update elbv2 client to latest version
api-change:lex-models: Update lex-models client to latest version
api-change:application-autoscaling: Update application-autoscaling client to latest version
api-change:application-autoscaling: Update application-autoscaling client to latest version
api-change:organizations: Update organizations client to latest version
api-change:ec2: Update ec2 client to latest version
api-change:ec2: Update ec2 client to latest version
feature:Waiter: Expose configurable waiter interface
api-change:config: Update config client to latest version
api-change:gamelift: Update gamelift client to latest version
api-change:gamelift: Update gamelift client to latest version
api-change:cloudformation: Update cloudformation client to latest version
api-change:rds: Update rds client to latest version
api-change:rekognition: Update rekognition client to latest version
api-change:rekognition: Update rekognition client to latest version
api-change:appstream: Update appstream client to latest version
api-change:appstream: Update appstream client to latest version
bugfix:Paginator: Fix Athena GetQueryResults paginator
bugfix:Paginator: Fix Athena GetQueryResults paginator
api-change:ssm: Update ssm client to latest version
api-change:route53: Update route53 client to latest version
api-change:route53: Update route53 client to latest version
api-change:firehose: Update firehose client to latest version
api-change:gamelift: Update gamelift client to latest version
api-change:gamelift: Update gamelift client to latest version
api-change:ec2: Update ec2 client to latest version
api-change:ec2: Update ec2 client to latest version
api-change:cloudhsmv2: Update cloudhsmv2 client to latest version
api-change:cloudhsmv2: Update cloudhsmv2 client to latest version
api-change:ssm: Update ssm client to latest version
api-change:glue: Update glue client to latest version
api-change:mgh: Update mgh client to latest version
api-change:efs: Update efs client to latest version
api-change:storagegateway: Update storagegateway client to latest version
api-change:batch: Update batch client to latest version
api-change:ec2: Update ec2 client to latest version
api-change:ec2: Update ec2 client to latest version
feature:retries: Add ability to configure the maximum amount of retry attempts a client call can make. (#1260)
api-change:cognito-idp: Update cognito-idp client to latest version
api-change:codedeploy: Update codedeploy client to latest version
api-change:clouddirectory: Update clouddirectory client to latest version
api-change:clouddirectory: Update clouddirectory client to latest version
api-change:codebuild: Update codebuild client to latest version
api-change:rds: Update rds client to latest version
api-change:rds: Update rds client to latest version
bugfix:Paginator: Ensure that the page size type matches the type expected by the service. Fixes #1063 __.
bugfix:Paginator: Ensure that the page size type matches the type expected by the service. Fixes #1063.
bugfix:Exceptions: Default to 'Unknown' when error response is missing 'Error' key
api-change:elasticbeanstalk: Update elasticbeanstalk client to latest version
Your coding agent can read these notes before it upgrades. Set up the MCP server →