What gleam-lang/gleam shipped
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Week of September 21, 2026
What shipped
- Release candidate v1.19.0-rc2 published with bug fixes and improvements. Release
- Fixed dev dependencies now correctly included in applications list in .app files. Pull request #6347
- Metadata decoding errors now provide more detailed error messages for troubleshooting. Pull request #6350
- Hex package metadata now uses forward slashes for paths to ensure compatibility across platforms. Pull request #6335
- compile-package now generates app files listing all modules including colocated Erlang and Elixir files. Pull request #6174
- Renamed compile-package flag for clearer functionality. Pull request #6343
- Updated outdated warning entry in CHANGELOG to reflect recent improvements. Pull request #6344
Why it matters
Version 1.19.0-rc2 addresses platform compatibility issues with Hex package metadata and improves the compile-package command to better handle mixed language files. Developers working with dependencies or publishing packages will benefit from these fixes and clearer error messages.
Changelog entry
dev_dependenciesare now included in the applications list in generated .app files Pull request #6347- Metadata decoding failures now provide more detailed error messages Pull request #6350
- Hex package metadata now uses forward slashes for file paths for cross-platform compatibility Pull request #6335
- compile-package generates app files listing all modules including colocated Erlang and Elixir files Pull request #6174
- compile-package flag renamed Pull request #6343
- Updated CHANGELOG to reflect metadata handling improvements Pull request #6344
Gleam v1.19.0-rc2 is out. This release fixes dev dependencies in app files, improves error messages, and makes Hex metadata work reliably across platforms.
Gleam v1.19.0-rc2 is now available. This release candidate includes important fixes: dev dependencies are now correctly listed in app files, metadata decoding errors provide better diagnostics, and Hex package metadata paths work consistently across Windows and Unix systems. The compile-package command also now properly handles mixed Erlang and Elixir files.