PC-nrfutil and SDK Bootloader version pairing

[Harry]

I want to update pc-nrfutil to a newer release. Does each pc-nrfutil release correlate or pair with Bootloader from certaon SDK version?

[Vidar Berg]

Hello,

It depends on what SDK version your current bootloader is based on. Excerpt from the nRF Util documentation:

The DFU package format transitioned from legacy to modern in nRF5 SDK v12.0.0. Depending on the SDK version that you are using, select a compatible release of this tool:

• Version 0.5.x generates legacy firmware packages compatible with nRF5 SDK v11.0.0 and earlier.
• Version 1.5.0 and later generate modern firmware packages compatible with nRF5 SDK v12.0.0 and later.
• Version 2.2.0 or later is required to generate a bootloader settings page that is compatible with nRF52840.
• Version 4.0.0 and later generate modern firmware packages compatible with nRF5 SDK v15.1.0 and later.
• Version 5.0.0 and later generate modern firmware packages compatible with nRF5 SDK v15.3.0 and later.

Note: To create firmware images compatible with nRF SDK 12.0 to nRF SDK 15.0, use the --no-backup command when generating DFU settings.

Also, remember that Python 3 is required starting from nRF Util version 6.0.0

[Harry]

Thank you so much!