> For the complete documentation index, see [llms.txt](https://docs.onum.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.onum.com/listeners-changelog/splunk-hec-no-mtls-listener.md).

# Splunk HEC (no mTLS) Listener

Learn more about this Listener type in [this article](/listeners/listener-integrations/collect-data-from-splunk.md).

<details>

<summary>v0.0.3</summary>

<mark style="background-color:purple;">**Released on**</mark> <mark style="background-color:purple;"></mark><mark style="background-color:purple;">06/25/2026</mark>

* Added the `/services/collector/health/1.0` endpoint.

</details>

<details>

<summary>v0.0.2</summary>

<mark style="background-color:purple;">**Released on**</mark> <mark style="background-color:purple;"></mark><mark style="background-color:purple;">04/30/2026</mark>

* Listener now generates event time from request.
* Requests are now rejected when ACK is enabled but no channel is provided.
* Ack and health endpoints now support GET and POST methods.

</details>

<details>

<summary>v0.0.1</summary>

<mark style="background-color:purple;">**Released on**</mark> <mark style="background-color:purple;"></mark><mark style="background-color:purple;">04/30/2026</mark>

Initial version.

</details>