v10.0.1

heroku/ruby

Fixed

• The cache directory that holds downloaded gems is now deleted after bundle install. This action reduces the final image size and does not impact future gem installation performance. (#434)

v10.0.0

heroku/ruby

Changed

• Removed statsd based metrics collection agent (associated with the barnes gem). Fir uses OTel and does not support statsd metrics collection (#429)

Fixed

• Ruby binary downloads now retry before failing a build (#428)

v9.0.0

heroku/ruby

Changed

• The bundle install command now runs on every deploy, the HEROKU_SKIP_BUNDLE_DIGEST environment variable has no effect. (#425)
• Default Ruby version is now 3.3.8 (#426)

v8.0.0

heroku/ruby

Fixed

• Internal API used for producing buildpack output updated. (#419)

Changed

• Removed support for Ubuntu 20.04 (and thus Heroku-20 / heroku/builder:20). (#422)

v7.0.1

heroku/ruby

Added

• Introduce tracing observability for buildpack diagnostics and usage. (#412)

Changed

• Updated libcnb to 0.28.1, which includes tracing improvements/fixes. (#416)

v7.0.0

heroku/ruby

Changed

• Default Ruby version is now 3.3.7 and default bundler version is now 2.5.23 (#408)

Fixed

• The docker run command no longer requires an entrypoint when using default processes provided by heroku/ruby directly (and not the heroku/procfile buildpack) (#404)

v6.0.0

heroku/ruby

Changed

• Gem install behavior and configuration (#402)
  • Gem install path is now configured with GEM_HOME and GEM_PATH instead of BUNDLE_PATH.
  • Cleaning gems is now accomplished via running bundle clean --force. Previously it was accomplished by setting BUNDLE_CLEAN=1.
  • The BUNDLE_DEPLOYMENT=1 environment variable is changed to BUNDLE_FROZEN=1.
  • The BUNDLE_BIN environment variable is no longer set.

v5.1.0

heroku/ruby

Changed

• Enabled libcnb's trace feature. (#398)

v5.0.1

heroku/ruby

Fixed

• Executables from the applications bin directory will be placed on the path before dependencies installed via bundler (#383)
• Binaries from user installed gems will be placed on the path before binaries that ship with Ruby (#383)

v5.0.0

heroku/ruby

Changed

• Default Ruby version is now 3.2.6 (#374)
• Default Bundler version is now 2.5.6 (#374)