Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

Unreleased

4.0.0 - 2025-01-21

Changed

Regex based parser has been removed in favor of a winnow based parser combinator, the format is now more strict. See SPEC.md for more details. (#255)
- Keys starting with spaces now emit a warning
- Underscore key characters (_) are now converted to hyphens (-) and emit a warning
- Uppercase key characters are now converted to lowercase and emit a warning
- Invalid keys now error, previously they were ignored

3.2.0 - 2024-12-20

Changed

Build output style updated to bullet_stream. Output now also includes the commands that were pulled from the Procfile in the output. (#252)

3.1.2 - 2024-07-02

Changed

Upgraded Rust dependencies. (#232 and #235)

Removed

Removed [[stacks]] table workaround from buildpack.toml. (#231)

3.1.1 - 2024-05-02

Fixed

No changes to functionality. New release to fix incorrectly published artifacts in 3.1.0.

3.1.0 - 2024-05-02

Added

Support for arm64 and multi-arch images. (#225)

3.0.1 - 2024-03-13

Changed

Switched Docker Hub repository from docker.io/heroku/procfile-cnb to docker.io/heroku/buildpack-procfile. (#219)
Renamed GitHub repository from heroku/procfile-cnb to heroku/buildpacks-procfile. (#216)

3.0.0 - 2024-02-28

Added

Enabled tracing/telemetry via libcnb's trace feature. (#208)

Changed

Updated to Buildpack API 0.10. (#205)
- All launch processes are now wrapped in bash -c instead of using CNB's direct = false directive, which is no longer available.
- .profile and .profile.d scripts will no longer be automatically sourced.
- CNB Lifecycle 0.17 or newer is now required.

2.0.2 - 2023-10-24

Changed

Updated buildpack display name, description and keywords. (#189)

2.0.1 - 2023-08-21

Changed

Switched to new buildpack release automation. As a side-effect, the filename of the packaged buildpack attached to the GitHub release has changed from heroku_procfile_X.Y.Z.cnb to heroku_procfile.cnb. (#156 and #170)
Updated buildpack dependencies.

2.0.0 - 2022-09-27

Changed

Buildpack now implements buildpack API version 0.8 and so requires lifecycle version 0.14.x or newer. (#98)
Upgraded libcnb and libherokubuildpack to 0.11.0. (#98 and #102)

Removed

Removed explicitly named stacks from [[stacks]], which were a workaround for Pack CLI <0.24.1 not supporting the wildcard stack. (#103)

1.0.2 - 2022-07-14

Changed

The buildpack binary is now stripped for reduced builder image size (thanks to libcnb-cargo v0.5.0).
Updated libcnb and libherokubuildpack from 0.5.0 to 0.9.0. (#49, #60, #82 and #88)

Fixed

Removed incorrect error message shown in the case of internal buildpack regex errors. (#77)

1.0.1 - 2022-04-05

Fixed

Fixed compatibility with older versions of Pack CLI that do not support the wildcard stack in buildpack.toml. (#55)

1.0.0 - 2022-04-05

Changed

Initial release of Rust procfile buildpack, the old Go buildpack is now archived.
Re-write logic of Procfile parsing to match Heroku's behavior, which has different behavior from the Go version (that assumed that a Procfile was YAML syntax).