Botocore is the core library for Boto, providing the low-level building blocks needed to work with Amazon Web Services (AWS) APIs. It’s useful for developers who want the underlying service clients, request/response handling, and authentication that higher-level AWS tooling builds on.
Project status
- Actively maintained: botocore shows very recent upstream activity (last push on 2026-10-14) and frequent tagged update activity in October 2026, indicating ongoing maintenance rather than dormancy.
- Update cadence: updates are arriving on the order of every 1 to 3 days in the provided window (roughly 1.43.105 through 1.43.114 from 2026-09-29 to 2026-10-14).
AI summary generated
Recent updates
1.43.114
No publisher release notes were provided for version 1.43.114. The code diff for this release updates Botocore service models and documentation generation, adding new API fields and enumerations across multiple AWS services, plus updating endpoint rule data used for service endpoint resolution.
1.43.113
No publisher release notes were provided for version 1.43.113. The code diff shows primarily additive botocore model updates (new operations, new shapes, documentation updates) across many AWS services, with a small amount of client behavior/validation tightening. The most notable potential breaking change is a new required-field validation in the Amazon HealthOmics model.
1.43.112
Release 1.43.112 updates botocore to introduce a number of new or expanded service API models across multiple AWS services, including Bedrock AgentCore memory TTL support, new AWS Glue Data Quality V2 operations, and the Lambda Web Functions feature set (new operations, paginators, and waiters). The publisher release notes were not provided, so the contents of CHANGELOG.rst and the service model diffs are the primary sources of what actually changed.
Features1.43.111
Release 1.43.111 adds multiple API surface expansions across several AWS service models in botocore, including a new Deadline Cloud ListMemberships operation, MediaTailor HTTP response caching configuration, and new/expanded QuickSight custom permissions capability states. The publisher release notes were not provided, so the changes seen in the diff are not confirmed as being documented in release messaging for this version.
Features1.43.110
Version 1.43.110 updates botocore service models for a number of AWS APIs, including new Cost Explorer and Budgets filtering dimensions, new CloudFormation rollback capabilities, and new protocol support using Smithy RPC v2 CBOR. It also adds several new API operations and request parameters (for example, Glue system logs and EMR Serverless access to system profile logs).
BreakingFeatures1.43.109
Release 1.43.109 bumps the botocore version to 1.43.109 and updates documentation version strings. The primary change is a major update to the Lambda Web (lambda-web) service model, removing operations that are not generally available and also removing associated pagination and waiter configurations.
Features1.43.108
Release 1.43.108 updates the botocore service models for multiple AWS APIs (Cognito IDP, Glue, Invoicing, Lambda Web, MediaPackage V2, Pinpoint SMS Voice V2, and Security Agent), plus version bumps in package and docs config. The changes are primarily schema/model additions (new fields, enum values, and configuration structures), with no lockfile or obvious behavioral changes in client code.
1.43.107
Release 1.43.107 has no publisher release notes provided. The code diff shows a botocore version bump to 1.43.107 and primarily adds new API models, shapes, and service operations across multiple AWS services.
1.43.106
Version 1.43.106 is a large botocore model update that adds multiple new AWS API capabilities across many services (for example, Account phone number verification, Bedrock policy identifier Unicode support, and new Bedrock AgentCore gateway certificate authority configuration). The published release notes were not provided in the release payload, so the only “documentation” visible comes from the repo changelog entries that were added in this diff.
Features1.43.105
Release 1.43.105 updates botocore service models across many AWS APIs by adding new request parameters, response fields, and supporting types for multiple services. No publisher release notes were provided, so this analysis is based on the actual botocore data model changes in the diff.
Features1.43.104
Release 1.43.104 primarily updates botocore service models and changelog entries, adding new AWS API capabilities and request/response fields across multiple services. The published release notes section is empty, so the only documented changes come from the repository's CHANGELOG entries and .changes metadata added for this version.
Features1.43.103
botocore version 1.43.103 updates service models by adding new API operations and request/response shapes across multiple AWS services (Region switch, Bedrock Agent, AgentCore Payments, Connect, Glue, MediaConnect, Neptune Graph, Q Connect, Rekognition, Security Agent, and Well-Architected). The repo documentation (CHANGELOG and .changes) describes many of these additions, but the code diff also includes at least one behavior-affecting default change and additional schema extensions that are not clearly called out.
Features1.43.102
botocore version 1.43.102 updates multiple AWS service models and endpoint resolution data. The code diff primarily adds new CloudWatch, DataZone, EventBridge enhanced event bus, ElastiCache tagging, and Marketplace Discovery capabilities, plus some model/validation tweaks (notably in Redshift Data). No publisher release notes were provided, so this analysis treats the changes found in the diff as potentially undocumented.
Features1.43.101
Release 1.43.101 updates botocore models and metadata for multiple AWS services by adding new APIs, request/response shapes, and service definitions. No publisher release notes were provided in the supplied release_notes, but the repo changelog and .changes metadata describe the intended API additions. Code changes also include some non-API internal adjustments related to S3 region redirect telemetry and endpoint coverage.
Features1.43.100
Release 1.43.100 is largely an API model update in botocore, adding new service capabilities and request/response fields across multiple AWS services. The publisher release notes were not provided, but the repo changelog documents several API-additive changes (API Gateway security policies, CloudWatch Omni GA, EC2 quote-based capacity reservation date changes, Glue materialized view fields, Observability Admin dataset integrations, QuickSight connector permission granularity, and SSO Admin new response fields).
Features1.43.99
Release 1.43.99 is primarily a botocore model/data update (service-2.json files) rather than a change to core client logic. It adds new API shapes for Bedrock AgentCore harness lifecycle hooks and OpenAI-compatible apiBase support, plus new Billing Conductor endpoints and DocumentDB and SageMaker capability additions.
Features1.43.98
No publisher release notes were provided for version 1.43.98. The code diff for this release shows a large set of botocore service-model updates that mainly add new API operations and request/response shapes across multiple AWS services, plus some model metadata and documentation tightening.
Breaking1.43.97
Version 1.43.97 updates botocore service models across multiple AWS services, adding new API shapes, parameters, and operations. The only concrete non-model behavioral change in the diff is in checksum handling, plus a change to Connect input validation for ReplicaInstance.
Features1.43.96
No publisher release notes were provided for version 1.43.96, but the botocore model and documentation artifacts were updated. The code diff shows additive changes across multiple AWS service models, including new API operations, new request/response shapes, expanded enum states, and pagination model updates.
1.43.95
No publisher release notes were provided for version 1.43.95. The code changes in this release are primarily botocore service model updates, adding new API shapes/fields and new Direct Connect operations, plus a botocore version bump.