There is a new pull request by Johnnynator against master on the void-packages repository

https://github.com/Johnnynator/void-packages qt5.15.2
https://github.com/void-linux/void-packages/pull/26574

[WiP] qt5: update to 5.15.2.
Todo:
- [ ] fix qt5-webengine cross builds
- [ ] rebase ppc patchset

Test repos:
https://void.johnnynator.dev/qt5.15.2/
https://void.johnnynator.dev/qt5.15.2-sndio/

Key fingerprint: `6b:7e:bd:35:60:20:08:e9:5a:f5:8b:ad:32:f9:a4:42`

A patch file from https://github.com/void-linux/void-packages/pull/26574.patch is attached