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Extensions in GNOME 45 - New import system is not backwards compatible (blogs.gnome.org)

submitted 1 year ago by [email protected] to c/[email protected]

51 comments fedilink hide all child comments

By now it is probably no longer news to many: GNOME Shell moved from GJS’ own custom imports system to standard JavaScript modules (ESM).

Extensions that target older GNOME versions will not work in GNOME 45. Likewise, extensions that are adapted to work with GNOME 45 will not work in older versions.

You can still support more than one GNOME version, but you will have to upload different versions to extensions.gnome.org for pre- and post-45 support.

Please file bugs with your favorite extensions or have a friendly conversation with your extension writers so that we can help minimize the impact of this change. Ideally, you could help with the port and provide a pull or merge request to help maintainers.

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[–] Gecko 9 points 1 year ago (1 children)

So basically it’s just another GNOME release gotcha.

AFAIK, the extension developer needs to explicitly set each version of Gnome they support. Even when the Gnome version doesn't have any breaking changes, the extension developer still needs to update their extension to enable their extension for the new Gnome version.

[–] [email protected] 7 points 1 year ago (1 children)

It makes sense that you have to explicitly verify that it works on every release - even if there had been no intentional breaking changes. That said, if an extension developer would really prefer to YOLO it, they could just pre-emptively add a bunch of future releases.

(Of course, ironically that would've broken when they switched to 40.)

[–] [email protected] 4 points 1 year ago (1 children)

It would make more sense to specify something like API versions, not software versions, and flag on the client when it changes without the addon being updated (giving you a choice to run it with a warning or not). That is, unless the version update is specifically flagged as breaking compatibility, in which case it would just warn and not offer to run it anyway until it's been updated.

[–] [email protected] 2 points 1 year ago

Gnome doesn't really have an extension API and instead the extensions hook directly into Gnome Shell. This allows extensions to do basically anything, but each new Gnome release might break an extension (if the used code path is changed).