# ? main branch of core repo is not used for anything?

**URL:** <https://forum.collaboraonline.com/t/main-branch-of-core-repo-is-not-used-for-anything/4716>\
**Category:** Development\
**Created:** [June 4, 2026, 5:46pm UTC](https://forum.collaboraonline.com/t/main-branch-of-core-repo-is-not-used-for-anything/4716 "2026-06-04T17:46:38Z")\
**Posts on this page:** 1\
**Showing post:** 2

<div class="post-metadata">

**Author:** ![darshan](https://dub1.discourse-cdn.com/flex013/user_avatar/forum.collaboraonline.com/darshan/32/2230_2.png) [@darshan](https://forum.collaboraonline.com/u/darshan)\
**Post date:** [June 5, 2026, 5:45am UTC](https://forum.collaboraonline.com/t/main-branch-of-core-repo-is-not-used-for-anything/4716/2 "2026-06-05T05:45:21Z")

</div>

Hi @Regina

There is a nice introduction post from Pedro that explains the new repository setup:

[Your First Pull Request](https://forum.collaboraonline.com/t/your-first-pull-request/41?utm_source=chatgpt.com)

Basically, `core` is no longer developed as a separate project in the way it used to be. The code now lives under the online repository, and the `core` is now subtree name `engine` inside online repo shared with the desktop and online.

I hope that forum post helps clarify the new setup and where patches should be submitted.

Thanks,  
Darshan

---

_[View the full topic](https://forum.collaboraonline.com/t/main-branch-of-core-repo-is-not-used-for-anything/4716)._