From this PR and branch:
zmkfirmware#1995
https://github.com/petejohanson/zmk/commits/core/zephyr-3.5-update

commit 37261fd
Author: Peter Johanson <peter@peterjohanson.com>
Date:   Mon Dec 11 16:35:16 2023 -0800

    fix(bluetooth): Remove LLCP impl override.

commit 0473b80
Author: Peter Johanson <peter@peterjohanson.com>
Date:   Mon Dec 4 22:47:31 2023 +0000

    fix(boards): Remove unused pin settings.

    * Remove unused pin settings that used deprecated
      devicetree properties.

commit f623753
Author: Peter Johanson <peter@peterjohanson.com>
Date:   Mon Dec 4 14:39:41 2023 -0800

    fix(boards): Make `&bootloader` work on nrf52 for now.

    * Use `NRF_STORE_REBOOT_TYPE_GPREGRET` to get bootloader behavior
      to work for now until retained bootmode is implemented.

commit 33a597c
Author: Peter Johanson <peter@peterjohanson.com>
Date:   Mon Dec 4 13:55:42 2023 -0800

    feat(boards): Make `west flash` work with new UF2 runner.

commit f86d3da
Author: Peter Johanson <peter@peterjohanson.com>
Date:   Mon Dec 4 12:58:13 2023 -0800

    fix(bt): Fixes for BLE test BSIM bits.

commit 0d20fe9
Author: Peter Johanson <peter@peterjohanson.com>
Date:   Mon Dec 4 19:44:42 2023 +0000

    fix(bt): Updated snapshots for BLE tests.

    * Core Zephyr changes tweaked the output from the
      BT stack for our unit tests.

commit a6556b9
Author: Peter Johanson <peter@peterjohanson.com>
Date:   Wed Nov 15 16:06:21 2023 -0800

    fix(shields): LVGL fixes for nice!view screen

    * Bump the LVGL mem pool size needed for custom screen.
    * Fixes for LVGL drawing/label usage.

commit bbf4a6b
Author: Peter Johanson <peter@peterjohanson.com>
Date:   Wed Nov 15 04:22:09 2023 +0000

    fix(boards): Remove references to PINMUX Kconfig.

commit 3a8d375
Author: Peter Johanson <peter@peterjohanson.com>
Date:   Wed Nov 15 00:40:36 2023 +0000

    fix: Proper use of CONTAINER_OF with delayable work.

commit 70d1fd2
Author: Peter Johanson <peter@peterjohanson.com>
Date:   Tue Nov 14 23:56:11 2023 +0000

    FIXME: Bump to 3.5-branch Docker images.

commit 6239071
Author: Peter Johanson <peter@peterjohanson.com>
Date:   Fri Nov 10 03:51:42 2023 +0000

    fix(kscan): Adjust composite kscan priority

    * Composite kscan needs a dedicated priority to be sure it is
      initialized after the other kscan instances.

commit d881b16
Author: Peter Johanson <peter@peterjohanson.com>
Date:   Fri Nov 10 00:03:57 2023 +0000

    refactor: Remove explicit blocklist item.

    * `sof` is now not enabled by default as a west dep, so need to
      add it to the blocklist ourselves.

commit 8107a98
Author: Peter Johanson <peter@peterjohanson.com>
Date:   Thu Nov 9 23:59:15 2023 +0000

    refactor: Move to new sys_poweroff API.

    * Move to new `sys_poweroff` API for our deep sleep functionality.

commit 74a8157
Author: Peter Johanson <peter@peterjohanson.com>
Date:   Thu Nov 9 23:58:28 2023 +0000

    fix(ble): Ensure large enough string for setting name.

    * Fix warning related to potentially large number of profiles
      causing overflow of allocated string for the setting name.

commit 2c632ff
Author: Peter Johanson <peter@peterjohanson.com>
Date:   Thu Nov 9 00:20:27 2023 -0800

    refactor(kscan): Clean up warning about shadowed local.

commit d2b1b1a
Author: Peter Johanson <peter@peterjohanson.com>
Date:   Thu Nov 9 00:17:44 2023 -0800

    refactor: Move to POST_KERNEL phase for behavior inits.

commit 56da764
Author: Peter Johanson <peter@peterjohanson.com>
Date:   Thu Nov 9 00:10:38 2023 -0800

    refactor: Return int from main function.

commit 8a800e5
Author: Peter Johanson <peter@peterjohanson.com>
Date:   Thu Nov 9 00:08:56 2023 -0800

    fix(display): More LVGL API fixes.

commit b89be75
Author: Peter Johanson <peter@peterjohanson.com>
Date:   Thu Nov 9 00:07:10 2023 -0800

    fix: Fix syscalls generation setup.

commit e3420bd
Author: Peter Johanson <peter@peterjohanson.com>
Date:   Wed Nov 8 23:44:04 2023 -0800

    CLEANUP: Switch to 3.5 Zephyr version.

commit 5462d4e
Author: Peter Johanson <peter@peterjohanson.com>
Date:   Mon Oct 16 06:11:21 2023 +0000

    fix(sensors): Avoid duplicate Kconfig name.

    * Upstream added an equivalent fuel gauge driver, so namespace
      our Kconfig symbol for the MAX17048 driver.

commit 3a09052
Author: Peter Johanson <peter@peterjohanson.com>
Date:   Wed Jun 28 13:34:25 2023 -0700

    refacter(bluetooth): Proper HCI header include.

commit 793dc0f
Author: Peter Johanson <peter@peterjohanson.com>
Date:   Fri Jun 23 07:23:50 2023 +0000

    REMOVEME: Move to PJJ 3.4 Zephyr.

commit f0ca20e
Author: Peter Johanson <peter@peterjohanson.com>
Date:   Fri Jun 23 07:20:30 2023 +0000

    fix: Add missing include for k_work types.

commit 66dd946
Author: Peter Johanson <peter@peterjohanson.com>
Date:   Fri Jun 23 07:19:57 2023 +0000

    refactor: All SYS_INIT functions are void args.

commit 634075a
Author: Peter Johanson <peter@peterjohanson.com>
Date:   Fri Jun 23 07:17:00 2023 +0000

    refactor: Move new LVGL DPI Kconfig setting.