# Upgrading Mender client 2.6 to 4.0

**URL:** <https://hub.mender.io/t/upgrading-mender-client-2-6-to-4-0/7440>\
**Category:** General Discussions\
**Tags:** mender-client\
**Created:** [January 3, 2025, 12:02pm UTC](https://hub.mender.io/t/upgrading-mender-client-2-6-to-4-0/7440 "2025-01-03T12:02:57Z")\
**Posts on this page:** 1\
**Showing post:** 14

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**Author:** ![Vladimir](https://avatars.discourse-cdn.com/v4/letter/v/94ad74/32.png) [@Vladimir](https://hub.mender.io/u/Vladimir)\
**Post date:** [January 27, 2025, 9:31am UTC](https://hub.mender.io/t/upgrading-mender-client-2-6-to-4-0/7440/14 "2025-01-27T09:31:01Z")

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@TheYoctoJester I tried to boot kirkstone image with u-boot 2024.04 and found out that boot process stalls on the same point as described there: [Trouble getting RPi4 to work - #7 by Vladimir](https://hub.mender.io/t/trouble-getting-rpi4-to-work/7287/7). Then, I cherry-picked two commits from scarthgap branch of meta-mender-community repo:  
[fix: rpi: uboot, increase memory area for kernel loading · mendersoftware/meta-mender-community@1d3da07 · GitHub](https://github.com/mendersoftware/meta-mender-community/commit/1d3da076790be522425e0a62fd1e51164f5593b7)  
[fix: rpi 32bit, ignore address range checks in u-boot · mendersoftware/meta-mender-community@b930ff3 · GitHub](https://github.com/mendersoftware/meta-mender-community/commit/b930ff33ffa55ad0ebe0bd6c78b2d0bb1f823a15)  
And I’m able to boot after these changes. Could I ask, please, should it be ported from scarthgap to kirkstone branch? Thanks.

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