# Cylc 8.2.0 Released

**URL:** <https://cylc.discourse.group/t/cylc-8-2-0-released/702>\
**Category:** Cylc Announce\
**Created:** [July 24, 2023, 1:50pm UTC](https://cylc.discourse.group/t/cylc-8-2-0-released/702 "2023-07-24T13:50:34Z")\
**Posts on this page:** 1\
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**Author:** ![oliver.sanders](https://yyz2.discourse-cdn.com/free1/user_avatar/cylc.discourse.group/oliver.sanders/32/110_2.png) [@oliver.sanders](https://cylc.discourse.group/u/oliver.sanders)\
**Post date:** [September 12, 2023, 3:59pm UTC](https://cylc.discourse.group/t/cylc-8-2-0-released/702/5 "2023-09-12T15:59:01Z")

</div>

We have released cylc-uiserver 1.4.0.

This update upgrades cylc-uiserver to work with the most recent versions of Jupyter components, namely:

- Jupyter Server v2.7+
- Jupyter Hub v4.0+

This release offers some big improvements for sites looking to deploy the Cylc GUI with Jupyter Hub:

- Users can now be authorised to start UI Servers on behalf of other users.
- There is now a box in the top-left of the GUI for switching user / deployment.
- The Cylc UI Server can now be deployed along with the latest versions of Jupyter Lab.

Upgrading an existing Jupyter Hub deployment to use cylc-uiserver requires some extra configuration due to the new authorisation frameworks in Jupyter Hub and Jupyter Server. For more information on how to set up a Jupyter Hub deployment with cylc-uiserver 1.4.0 see this page:

[https://cylc.github.io/cylc-doc/stable/html/user-guide/sharing-access-to-workflows.html](https://cylc.github.io/cylc-doc/stable/html/user-guide/sharing-access-to-workflows.html)

### Jupyter Hub compatibility

(note this only applies to sites which wish to deploy cylc-uiserver using Jupyer Hub)

- For **cylc-flow 8.2.x** , we will continue to maintain both cylc-uiserver 1.3.x and 1.4.x:
  - Use cylc-uiserver 1.3.x for **Jupyter Hub 1.4 - 3**
  - Use cylc-uiserver 1.4.x for **Jupyter Hub 4.0+**

- From **cylc-flow 8.3.0** onwards, **Jupyter Hub 4.0+** will be required.

### How to update

```auto
# For Conda managed environments:
conda update 'cylc-uiserver=1.4.0'

# For Pip managed environments:
pip install 'cylc-uiserver==1.4.*'

```

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