# Python 3.8 End of Life

Handling the Upgrade to new python

On October 7th, 2024 python 3.8 reached its end of life date. For details, see <https://devguide.python.org/versions/>

On October 31st, 2024 at 12pm Central Time, Testery decommission test stack images running with python 3.8

We encourage all Testery customers to migrate before this date, however, we will maintain Python 3.8 support until October 31, 2024

## Switching to Python 3.9 before October 31, 2024 <a href="#switching-to-node.js-18-before-september-11-2023" id="switching-to-node.js-18-before-september-11-2023"></a>

Migrating your code to the new Test Stack is easy, you just need to provide a **testery.yml** file in your source repository. Add the following content:

```
test_stack:
  configuration_key: python-chrome.123-java.17-nodejs.20-python.3.9
```

## Defaulting to new version without a testery.yml

If you choose to not migrate beforehand, the test runs will automatically pick up the new default test stack **python-chrome.123-java.17-nodejs.20-python.3.9** after October 31st. This may result in test run failures if you have not checked compatibility beforehand.


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