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From: | Jim Porter |
Subject: | Re: Suggestion: convert dispatchers to use transient |
Date: | Thu, 3 Feb 2022 17:13:50 -0800 |
On 2/3/2022 1:30 PM, Tim Cross wrote:
Is the transient.el included in Emacs 28 the same as the one on GNU ELPA?
Currently, yes. They're both 0.3.7. However, that could obviously change in the future (e.g. a user on 28.1 would likely have transient 0.3.7, though GNU ELPA might have transient 0.3.8 if it were released one day).
Emacs will use the built-in version of a package provided that package meets the version requirements. For the version of Org Mode that comes with Emacs, it would always use the built-in transient (largely because maintainers wouldn't do it any other way). If you download a newer Org version from GNU ELPA, I believe it checks the package metadata and then will fetch transient from GNU ELPA as well if the built-in version is too old.I'm assuming it is, but I have to admit I'm still not 100% clear on how Emacs handles the situation where you use a library that is both built-in and available in ELPA. Does Emacs use the latest version available or does it use the built-in version until you explicitly select the ELPA versions?
(I haven't looked at the code to verify this, but it's how Eglot worked when I installed it. Eglot wants newer versions of eldoc, xref, project, etc than Emacs 27.2 provides, so package.el automatically installs them when installing Eglot.)
- Jim
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