Splunk 10.7 Deactivation of Python version 3.9

Applicability

Description

After an upgrade to Splunk Cloud Platform version 10.7, version 3.9 of the Python interpreter is no longer available by default.

Splunk apps and Technology Add-ons that depend on Python 3.9 might run incorrectly or fail entirely. Python 3.13 remains the default supported interpreter.

Python 3.14 is available as an opt-in interpreter. If for some reason additional time to migrate to a supported interpreter is required open a Support ticket to temporarily restore support for Python 3.9 for an affected deployment.

Investigation

Impact: 
Splunk Cloud Platform app and Technology Add-on developers, and custom apps that depend on Python 3.9.

Resolution

Issue detection and mitigation guidance:
1. Identify apps and Technology Add-ons that depend on Python 3.9,
2. Test with a supported Python versions, and migrate  before upgrading to Splunk Cloud Platform version 10.7.
3. Splunk Cloud Platform instances requiring  who more time can open a Support ticket to temporarily restore Python 3.9 availability for an affected stack while completing migration.

Related Links

Lantern - Potentially breaking changes
Splunk 10.4 Default Python interpreter from version 3.9 to version 3.13