# Preparing your community for behind-the-scenes header changes

**URL:** <https://meta.discourse.org/t/preparing-your-community-for-behind-the-scenes-header-changes/316549>\
**Category:** Announcements\
**Created:** [July 16, 2024, 1:49pm UTC](https://meta.discourse.org/t/preparing-your-community-for-behind-the-scenes-header-changes/316549 "2024-07-16T13:49:00Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![th21](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/th21/32/211915_2.png) [@th21](https://meta.discourse.org/u/th21)\
**Post date:** [September 17, 2024, 3:13am UTC](https://meta.discourse.org/t/preparing-your-community-for-behind-the-scenes-header-changes/316549/2 "2024-09-17T03:13:46Z")

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glimmer header mode site setting is missing on 3.4.0.beta2-dev 0923f5e3a7 , any idea why it happen? is it because I upgrade from an rather old version of discourse?

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