# p5 firmware upgrade

**URL:** <https://forum.psaudio.com/t/p5-firmware-upgrade/1551>\
**Category:** Power Components\
**Created:** [September 28, 2014, 5:27am UTC](https://forum.psaudio.com/t/p5-firmware-upgrade/1551 "2014-09-28T05:27:39Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![donovanmcdonald](https://avatars.discourse-cdn.com/v4/letter/d/ec9cab/32.png) [@donovanmcdonald](https://forum.psaudio.com/u/donovanmcdonald)\
**Post date:** [September 28, 2014, 5:27am UTC](https://forum.psaudio.com/t/p5-firmware-upgrade/1551/1 "2014-09-28T05:27:39Z")

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Hi

I have just upgraded my P5 from .38 to .39 version and wanted to know what this changes?

Thanks