generated: '2026-09-17' method: searched source: >- Registry metadata endpoints queried unauthenticated on 2026-09-17 (registry.npmjs.org, pypi.org, rubygems.org, crates.io, api.nuget.org, repo1.maven.org, proxy.golang.org, repo.packagist.org), cross-checked against https://aws.amazon.com/developer/tools/ and https://docs.aws.amazon.com/lexv2/latest/dg/sdk-general-information-section.html provider: Amazon Lex providerId: amazon-lex note: >- Amazon Lex ships no standalone SDK. Every first-party client is a per-service module inside the AWS SDK for that language, released on the AWS SDK's own daily cadence — which is why every version below was published within days of this probe. Two modules exist per language: the Model Building V2 client (build and manage bots) and the Runtime V2 client (talk to a built bot). The aggregate SDKs (boto3, aws-sdk-php, aws-sdk-java v1) carry Lex inside a single package rather than a per-service artifact. official_sdk_count: 12 packages: - name: '@aws-sdk/client-lex-models-v2' registry: npm language: JavaScript/TypeScript official: true scope: Model Building V2 url: https://www.npmjs.com/package/@aws-sdk/client-lex-models-v2 repository: https://github.com/aws/aws-sdk-js-v3/tree/main/clients/client-lex-models-v2 install: npm install @aws-sdk/client-lex-models-v2 version: 3.1135.0 published: '2026-09-17' - name: '@aws-sdk/client-lex-runtime-v2' registry: npm language: JavaScript/TypeScript official: true scope: Runtime V2 url: https://www.npmjs.com/package/@aws-sdk/client-lex-runtime-v2 repository: https://github.com/aws/aws-sdk-js-v3/tree/main/clients/client-lex-runtime-v2 install: npm install @aws-sdk/client-lex-runtime-v2 version: 3.1135.0 published: '2026-09-17' - name: boto3 registry: pypi language: Python official: true scope: Model Building V2 + Runtime V2 (aggregate AWS SDK; clients "lexv2-models" and "lexv2-runtime") url: https://pypi.org/project/boto3/ repository: https://github.com/boto/boto3 install: pip install boto3 version: 1.43.97 published: '2026-09-17' - name: aws-sdk-lexmodelsv2 registry: rubygems language: Ruby official: true scope: Model Building V2 url: https://rubygems.org/gems/aws-sdk-lexmodelsv2 repository: https://github.com/aws/aws-sdk-ruby/tree/version-3/gems/aws-sdk-lexmodelsv2 install: gem install aws-sdk-lexmodelsv2 version: 1.97.0 published: '2026-09-11' - name: aws-sdk-lexruntimev2 registry: rubygems language: Ruby official: true scope: Runtime V2 url: https://rubygems.org/gems/aws-sdk-lexruntimev2 repository: https://github.com/aws/aws-sdk-ruby/tree/version-3/gems/aws-sdk-lexruntimev2 install: gem install aws-sdk-lexruntimev2 version: 1.73.0 published: '2026-09-11' - name: aws-sdk-lexmodelsv2 registry: crates.io language: Rust official: true scope: Model Building V2 url: https://crates.io/crates/aws-sdk-lexmodelsv2 repository: https://github.com/awslabs/aws-sdk-rust install: cargo add aws-sdk-lexmodelsv2 version: 1.123.0 published: '2026-09-16' - name: aws-sdk-lexruntimev2 registry: crates.io language: Rust official: true scope: Runtime V2 url: https://crates.io/crates/aws-sdk-lexruntimev2 repository: https://github.com/awslabs/aws-sdk-rust install: cargo add aws-sdk-lexruntimev2 version: 1.112.0 published: '2026-09-16' - name: AWSSDK.LexModelsV2 registry: nuget language: .NET official: true scope: Model Building V2 url: https://www.nuget.org/packages/AWSSDK.LexModelsV2 repository: https://github.com/aws/aws-sdk-net install: dotnet add package AWSSDK.LexModelsV2 version: 4.0.100.14 published: null note: >- Version read from the NuGet flat-container index (api.nuget.org/v3-flatcontainer/awssdk.lexmodelsv2/index.json). The registration index is paged and the publish date was not retrieved on this pass; recorded null rather than guessed. - name: AWSSDK.LexRuntimeV2 registry: nuget language: .NET official: true scope: Runtime V2 url: https://www.nuget.org/packages/AWSSDK.LexRuntimeV2 repository: https://github.com/aws/aws-sdk-net install: dotnet add package AWSSDK.LexRuntimeV2 version: 4.0.100.14 published: null note: Publish date not retrieved from the paged NuGet registration index on this pass. - name: software.amazon.awssdk:lexmodelsv2 registry: maven language: Java official: true scope: Model Building V2 url: https://central.sonatype.com/artifact/software.amazon.awssdk/lexmodelsv2 repository: https://github.com/aws/aws-sdk-java-v2 version: 2.55.0 published: '2026-09-17' note: Date read from repo1.maven.org maven-metadata.xml lastUpdated (20260917210300). - name: software.amazon.awssdk:lexruntimev2 registry: maven language: Java official: true scope: Runtime V2 url: https://central.sonatype.com/artifact/software.amazon.awssdk/lexruntimev2 repository: https://github.com/aws/aws-sdk-java-v2 version: 2.55.0 published: '2026-09-17' - name: github.com/aws/aws-sdk-go-v2/service/lexmodelsv2 registry: pkg.go.dev language: Go official: true scope: Model Building V2 url: https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/lexmodelsv2 repository: https://github.com/aws/aws-sdk-go-v2 install: go get github.com/aws/aws-sdk-go-v2/service/lexmodelsv2 version: v1.70.0 published: '2026-09-09' - name: github.com/aws/aws-sdk-go-v2/service/lexruntimev2 registry: pkg.go.dev language: Go official: true scope: Runtime V2 url: https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/lexruntimev2 repository: https://github.com/aws/aws-sdk-go-v2 install: go get github.com/aws/aws-sdk-go-v2/service/lexruntimev2 version: v1.44.1 published: '2026-09-15' - name: aws/aws-sdk-php registry: packagist language: PHP official: true scope: Model Building V2 + Runtime V2 (aggregate AWS SDK) url: https://packagist.org/packages/aws/aws-sdk-php repository: https://github.com/aws/aws-sdk-php install: composer require aws/aws-sdk-php version: 3.395.5 published: '2026-09-17' currency: assessment: current note: >- Every per-service Lex module was republished within nine days of this probe. There is no abandonment signal here — the AWS SDKs regenerate from the same Smithy models captured in smithy/ on a near-daily release train, so an SDK version lag is not a usable signal of Lex API decay the way it is for a single-product vendor.