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Expand Up @@ -72,9 +72,26 @@ impact to your application.
{agent}::
* {agent} Docker images for {ecloud} have been reverted from having been based off of Ubuntu 24.04 to being based off of Ubuntu 20.04. This is to ensure compatibility with {ece}, support for new Wolfi-based images, and for GNU C Library (glibc) compatibility. {agent-pull}6393[#6393]

//*Impact* +
//<Describe how users should mitigate the change.> For more information, refer to {fleet-guide}/fleet-server.html[Fleet Server].
//====
[discrete]
[[known-issues-8.17.1]]
=== Known issues

[[known-issue-1671]]
.{kib} out of memory crashes on 1 GB {ecloud} {kib} instances using {elastic-sec} view
[%collapsible]
====

*Details*

{ecloud} deployments that use the smallest available {kib} instance size of 1 GB may crash due to out of memory errors when the Security UI is loaded.

*Impact* +

The root cause is inefficient memory allocation, and this is exacerbated when the prebuilt security rules package is installed on the initial load of the {elastic-sec} UI.

As a workaround, you can upgrade your deployment to 8.17.1 in which this issue has been resolved by https://github.com/elastic/kibana/pull/208869[#208869] and https://github.com/elastic/kibana/pull/208475[#208475].

====

[discrete]
[[new-features-8.17.1]]
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