Charmcraft 3.5 release notes¶
26 May 2025
Learn about the new features, changes, and fixes introduced in Charmcraft 3.5.
Requirements and compatibility¶
For development and testing, Charmcraft requires a host with a minimum of 4GB RAM running a Linux distribution compatible with systemd.
All versions of Charmcraft require the following software:
We recommend you install the Charmcraft snap. It comes comes bundled with all its dependencies.
Non-snap installations of Charmcraft have the following dependencies:
What’s new¶
Charmcraft 3.5 brings the following features, integrations, and improvements.
Updated init templates¶
The templates generated by charmcraft init now use the new
Platforms format.
Editor Integration¶
The JSON Schema Store now includes a schema for the charmcraft.yaml file.
If your IDE supports fetching JSON schemas from the store, you can now load the latest.
Documentation improvements¶
Many people have made countless improvements to Charmcraft’s documentation this release, from small changes like consistent terminology usage to major rewrites of tutorials.
Feature deprecations¶
The following features are deprecated in Charmcraft 3.5 and will be removed in Charmcraft 4.0.
Windows support¶
Charmcraft 3.0 deprecated support for Windows, and the upcoming 4.0 major release will cease it (#1810). Windows users should begin preparing to migrate their workflows to Windows Subsystem for Linux.
CentOS 7 support¶
CentOS 7 reached its end of life on 30 June 2024. Charmcraft 3.0 will continue supporting it, but Charmcraft 4.0 will cease support for it (#1826).
Bundle registration¶
New bundle registration ceased on 1 November 2024 and the register-bundle command currently
returns an error. It will be removed in Charmcraft 4.0 (#1858).
Scheduled feature deprecations¶
The following features will be deprecated in Charmcraft 4.0.
Bundle management¶
In line with the phasing out of bundles, Charmcraft 4.0 will deprecate all bundle management commands (#2113). The schedule for removing this feature hasn’t been set yet.
bundle plugin¶
In line with the phasing out of bundles, Charmcraft 4.0 will deprecate the bundle plugin (#2114). No schedule has been set for this change yet.
Known issues¶
The following issues were reported and are scheduled to be fixed in upcoming patch releases.
See individual issue links for any mitigations.
Fixed bugs and issues¶
The following bugs have been resolved in Charmcraft 3.5.0:
Contributors¶
We would like to express a big thank you to all the people who contributed to this release:
@alithethird,
@bepri,
@erinecon,
@evildmp,
@jahn-junior,
@javierdelapuente,
@jdkandersson,
@lengau,
@medubelko,
@tmihoc and
@weiiwang01