Release and Version History¶

x.y.z (Backlog)¶

Features and Improvements

Minor Improvements

Bugfixes

Miscellaneous

Features and Improvements

Added LayerDeploymentWorkflow — a single class that orchestrates the complete Build → Package → Upload → Publish pipeline. Accepts a duck-typed builder via the T_BUILDER protocol (any object with .run() and .path_layout), so sub-packages no longer need to wire the 4 steps together manually.

Breaking Changes

Removed BaseLambdaLayerLocalBuilder — downstream packages should define their own local build workflow instead of inheriting a rigid 4-step orchestration.
Removed the fixed 4-step orchestration (run(), step_1 … step_4) from BaseLambdaLayerContainerBuilder; the class now only provides computed Docker properties (image_uri, platform, container_name, docker_run_args).
Removed path_script and credentials fields from BaseLambdaLayerContainerBuilder — sub-packages manage these themselves.
Docker mount source changed from dir_project_root to dir_build_lambda_layer (build/lambda/layer), so all build artifacts live under the layer workspace directory.
path_build_lambda_layer_in_container_script_in_local and path_private_repository_credentials_in_local now resolve inside dir_build_lambda_layer instead of the project root or dir_build_lambda.
get_path_in_container() computes paths relative to dir_build_lambda_layer instead of dir_project_root.

Features and Improvements

Added log_header(), log_sub_header(), and log_detail() methods to BaseLogger for structured, human-readable build output.

Minor Improvements

Added Example: annotations to all LayerPathLayout property docstrings for easier discovery.

Breaking Changes

Removed LambdaLayerZipper class — replaced by direct functions create_layer_zip_file() and move_to_dir_python(). Sub-packages now call these functions directly instead of dispatching through an enum-based class.
Renamed BasedLambdaLayerLocalBuilder → BaseLambdaLayerLocalBuilder and BasedLambdaLayerContainerBuilder → BaseLambdaLayerContainerBuilder (fixed spelling).
Removed layer_build_tool: LayerBuildToolEnum parameter from upload_layer_zip_to_s3() and LambdaLayerVersionPublisher — replaced by generic path_manifest: Path so core never needs to know which tool built the layer.
Removed tool-specific properties and methods from LayerPathLayout (path_requirements_txt, path_poetry_toml, path_poetry_lock, path_uv_lock, copy_poetry_toml, copy_poetry_lock, copy_uv_lock, get_path_manifest). Sub-packages should manage their own tool-specific file paths.
Restructured api.py — source and layer sub-module APIs are now exposed as source_api and layer_api namespace objects instead of flat re-exports.
Drop Python3.10 support.

Features and Improvements

Refactored source module from a single file into a proper package (source/foundation.py, source/builder.py, source/upload.py, source/api.py).
Added BaseMockAwsTest test base class using moto for mock S3/Lambda services, enabling unit-level testing of AWS-calling code.
Added source/upload.py with build_and_upload_source_using_pip() and build_and_upload_source_using_uv() convenience functions.
Added layer/api.py as centralized public API module for the layer sub-package.
Added Sub-Package Extension Guide (docs/source/99-Maintainer-Guide/03-Sub-Package-Extension-Guide/) documenting how tool-specific packages should extend core.

Minor Improvements

Made LayerManifestManager accept generic path_manifest: Path instead of LayerBuildToolEnum, making manifest handling fully tool-agnostic.
Added LayerPathLayout.copy_file() and LayerPathLayout.copy_build_script() utility methods for sub-package use.
Updated Code Architecture Design doc to reflect all refactored class names, removed classes, and new test file structure.
Comprehensive test suite for all layer sub-modules (foundation, builder, package, upload, publish) achieving 99% coverage.

Features and Improvements

Initial release of aws_lbd_art_builder_core, the shared base in the 1+N Lambda artifact builder package family.
Implemented the 4-step Lambda layer workflow: package (Step 2), upload (Step 3), publish (Step 4). Step 1 (dependency installation) is delegated to tool-specific sub-packages (uv, pip, poetry).
Implemented Lambda source artifact deployment workflow: copy/filter source, pip install --no-deps, zip, upload to S3 with SHA256 in the path for CDK/CloudFormation change detection.
Added LayerPathLayout and LayerS3Layout for deterministic local and S3 path management.
Added Credentials frozen dataclass supporting private PyPI index authentication for pip, poetry, and uv.
Added LambdaLayerVersionPublisher with three-stage preflight: zip existence check, manifest MD5 consistency check, and dependency change detection to skip unnecessary layer publishes.
Added BasedLambdaLayerLocalBuilder and BasedLambdaLayerContainerBuilder abstract base classes for sub-package authors.
Added LambdaLayerZipper (Step 2) with configurable ignore list (excludes boto3, botocore, setuptools, pytest, etc.).