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feat: add %sveltekit.version% placeholder for template interpolation #12132

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Merged
merged 6 commits into from
Sep 16, 2025
Merged

feat: add %sveltekit.version% placeholder for template interpolation #12132

merged 6 commits into from
Sep 16, 2025

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@potch
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@potch potch commented Apr 16, 2024

Allow app.html to interpolate the version string passed to kit.version.name in svelte.config.js. This makes it easier for static <head> includes for third-party scripts to be passed the current app version, e.g.

<script>
  GenericAnalytics.init({
    token: "abc123",
    application: "web",
    version: "%sveltekit.version%",
  });
</script>

This is nice ergonomic improvement, but there are several available workarounds:

  • set a variable using a globally included %sveltekit.head%
  • duplicate the version string to an env variable and use %sveltekit.env.PUBLIC_VERSION%
  • do your own pre-templating of app.html in hooks.server

This PR resolves #12130.

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🦋 Changeset detected

Latest commit: eda91c8

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package
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@teemingc teemingc changed the title Add %sveltekit.version% placeholder for template interpolation feat: add %sveltekit.version% placeholder for template interpolation May 16, 2024
@teemingc teemingc added the feature / enhancement New feature or request label May 16, 2024
@benmccann
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If we did do this it would need to be added to the documentation. I'm not sure if needs to be in the playground though

The main question I have is whether we should add this vs having folks use the layout: #12130 (comment)

@teemingc teemingc added the needs-decision Not sure if we want to do this yet, also design work needed label Oct 28, 2024
Rich-Harris
Rich-Harris approved these changes Sep 15, 2025
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thank you!

@Rich-Harris Rich-Harris force-pushed the potch/add-sveltekit-version-placeholder branch from 00434aa to eda91c8 Compare September 15, 2025 23:21
@Rich-Harris Rich-Harris merged commit ff8a85e into sveltejs:main Sep 16, 2025
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@kyoshino kyoshino mentioned this pull request Oct 3, 2025
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@teemingc teemingc mentioned this pull request Oct 3, 2025
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@Rich-Harris Rich-Harris Rich-Harris approved these changes

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feature / enhancement New feature or request needs-decision Not sure if we want to do this yet, also design work needed

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Add a %svelte.version% template placeholder to propagate the current kit.version.name to app.html

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@potch @benmccann @Rich-Harris @teemingc