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Fast, small and painless sequential OTA update (1,71 GB) from macOS 26.5 RC to macOS 26.6 beta 1 (25G5028f).

 

image.png.76c4c5f6a8f1e1a5cefa38c9bfcda4b9.png

 

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So far, Apple has not released a Kernel Debug Kit for macOS 26.6 beta 1 (25G5028f).

 

Unfortunately, Apple’s inconsistent KDK naming scheme causes OCLP to currently select Kernel Debug Kit 26.5.4 build 25F5068a from macOS 26.5 beta 4 as the closest match for macOS 26.6 beta 1 instead of Kernel Debug Kit 26.5 build 25F71 from the final macOS 26.5 release.

 

image.png.b69b006e602dca53f6bc3f561ce9da60.png

 

Modern Audio, modern Wi-Fi and AWDL continue working flawlessly.

 

image.png.b94fc6cf079140a9d53bf9fc3e451256.png

 

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Customised Icons also continue working flawlessly.

 

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The system currently works so perfectly that switching to macOS 27 and Apple Silicon almost feels impossible! :thumbsup_anim:

 

Useful context information:

a.) Universal-EFI-Folder distribution

b.) Setup and troubleshooting guidelines for OCLP/OCLP-Mod/OCLP-Plus

c.) OCLP 3.0.0 Nightly - amfipassbeta Edition

d.) OCLP-Mod

e.) OCLP-Plus

f.) X299 Guidelines

g.) DownloadFullInstaller

h.) About-This-Hack

i.) Tahoe Drive Icons Pack – macOS/Windows/Linux/Disk-Format Inspired Editions

j.) Stacks in Da Place

 

Cheers,

KGP 👍

Edited by kgp
  • Like 11
  • Thanks 2

Smooth unattended, incremental update from macOS Tahoe 26.5 -> 26.6 Beta 1.

 

My config is as follows:

  • SIP csr-active-config = <01000000>
  • Audio: VoodooHDA.kext 4.0
  • Wi-Fi: Intel itlwm/Heliport
Spoiler

Screenshot2026-05-26at4_08_05PM.png.7c0c08e21bee6ea1d45682b57b91330f.png

 

Screenshot2026-05-26at4_56_51PM.png.ea0a35c0ffdb93c960a2ddec60964d44.png

  • Like 9

Apparently Apple has listened to complaints about sluggish Tahoe performance.  The overall responsiveness of Tahoe 26.6 Beta 1 seems the same to me as that of Sequoia 15.7.8 Beta 1 on my HackBookPro16,2 (i7-10610U / 10th Gen Intel HD graphics).  Even with only an Intel iGPU, Tahoe is a pleasure to use.  💌

  • Like 9

Enjoy it ;) 

 

https://swdist.apple.com/content/downloads/17/55/122-66794-A_OANDXFEZ3R/zy2096ppenwan3zdgz1iqsqt2shndepkei/InstallAssistant.pkg 

 

image.thumb.png.a432a3028f4e1b4d923acf968d001f4a.png

 

 

            <key>BUILD</key>

            <string>25G5028f</string>

            <key>VERSION</key>

            <string>26.6</string>

 

  • Like 7
1 hour ago, litemint09 said:

Awesome bro, are you on a wifi connection? Does broadcom or intel wifi matters?

Hi my brother, im not using wireless but works with both !! ;) 

 

😃

  • Like 2

Using or not intel wireless works!! Broadcom im not tested because im not using OCLP ;) 

 

 

Working on my Lenovo T14 too and Sync with iCloud too 

iMessage and FaceTime 

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  • Thanks 1
13 minutes ago, Sherlocks said:

Anyone who has airdrop with fenvi t919?

 

I want to use airdrop.

I tried to change smbios both imacpro1,1 and macpro7,1

 

Should i change bcm94360 to bcm943602cs for working airdrop?

 

AirDrop with a Fenvi T919 should normally work without any hardware modifications.

Changing from BCM94360 to BCM943602CS is generally not required for AirDrop functionality.

If AirDrop is not working, the issue is more likely related to the EFI/OCLP configuration, Wi-Fi/Bluetooth setup, AWDL functionality, or macOS services rather than the specific Broadcom variant itself.

I recommend using my EFI-Folder distribution as a baseline configuration and following my detailed OCLP guidelines. Don't hesitate to send me a PM together with your EFI if any issue persists, and I will gladly take a closer look.

Cheers,
KGP 👍

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