> For the complete documentation index, see [llms.txt](https://help.highlight.net/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.highlight.net/getting-started/release-notes/24.12-december-a-2024.md).

# 24.12 - December-A 2024

### Summary

**24.12** is a maintenance release containing bug fixes.

### Bug fixes

* **Controllers:** Device count now works for large estates.
* **Tech test:** Tech testing now completes on Cisco switches.

### Service description

The [Highlight Service Description document](https://support.ci.highlight.net/help/getting_started/HighlightServiceDescription.pdf) concisely describes how Highlight works and its key features. It has been updated for 24.12 and is available on the Help & Support Centre.

All Highlight releases are tested on the current version of:

### Browser compatibility

All Highlight releases are tested on the current version of:

* ![Chrome](https://support.highlight.net/help/images/browser_chrome.png)

  #### Chrome
* ![Edge](https://support.highlight.net/help/images/browser_edge.png)

  #### Edge
* ![Firefox](https://support.highlight.net/help/images/browser_ff.png)

  #### Firefox

Find out more about [Highlight supported browsers](/getting-started/useful-information/browsers-supported.md).

### Get in touch

More details on all of Highlight’s features are available on the Help & Support Centre or [contact us](/getting-started/contact-us.md) for assistance.


---

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