> For the complete documentation index, see [llms.txt](https://guides.clickatell.com/release-notes/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://guides.clickatell.com/release-notes/release-notes-archive/2024-release-notes/q4-2024/channel-updates.md).

# Channel Updates

{% hint style="info" %}
Available on all packages.
{% endhint %}

* [WhatsApp: Free service conversations](/release-notes/release-notes-archive/2025-release-notes/q4-2025/channel-updates/whatsapp-free-service-conversations.md)
* [WhatsApp: No support for HSM template format](/release-notes/release-notes-archive/2025-release-notes/q4-2025/channel-updates/whatsapp-no-support-for-hsm-template-format.md)
* [SMS: Changes in test message sending](/release-notes/release-notes-archive/2025-release-notes/q4-2025/channel-updates/sms-changes-in-test-message-sending.md)