macOS 15 Sequoia on Unsupported Macs Thread

[rehkram]

Last week I manually installed 24G217 (RC4) on my rMBP10,1 via OCLP 2.4.1 (create installer option) but not yet offered any newer updates OTA.
But there is Safari 26 Dev preview offered. Weird:

View attachment 2546023

OCLP today only offers 15.7 RC5 24G219.

In the past OTA have never downloaded on my MB (would always get stuck).
I always had to use OCLP to download the full installer and run it from /Applications.

Weird indeed you're not seeing it in the OTA offerings, maybe check again later.

I was pleasantly surprised the OTA workflow worked smoothly on this rMBP10,1. Like you I usually download the installer to /Applications using the OCLP option; but since it didn't appear in the OCLP list I went with the OTA update. This time I gave it a lot of time to complete, usually it seems to hang on the download or prep.

 

[deeveedee]

Just updated my Sequoia Beta test volume to Sequoia 15.7 RC via OTA (full installer). I also upgraded Safari to the latest 26.0 Seed. OS and Safari upgrades proceeded without issues. Posting this with Safari 26.0 in Sequoia 15.7. Applied non-metal Nvidia Tesla and Broadcom Wi-Fi post-install patches with OCLP 2.4.1.

About This Mac

Spoiler

Safari 26.0

Spoiler

 

[MacNB2]

Normally this is not necessary. OCLP starts automatically when there is an update of macOS.

Not quite true. OCLP will start automatically after macOS is updated (to prompt you to apply the root patches).
15.7 has not been officially released (according to Apple: https://support.apple.com/en-gb/120283).

The main question is: is WebGL successfully activated in Safari 26 Dev with macOS 15.7? Could you check this please?

I'll wait for the release thx. I was not expecting Safari 26 and do not really want to experiment yet.

 

[rehkram]

The main question is: is WebGL successfully activated in Safari 26 Dev with macOS 15.7? Could you check this please?

The webGL test is not working on a rMBP10,1 here. I do not see the rotating cube.
Safari version 26.0 (20622.1.22.11.14)

It is working fine on a supported Mac mini 8,1 2018, same safari version.

 

[MacNB2]

Weird indeed you're not seeing it in the OTA offerings, maybe check again later.

I was pleasantly surprised the OTA workflow worked smoothly on this rMBP10,1. Like you I usually download the installer to /Applications using the OCLP option; but since it didn't appear in the OCLP list I went with the OTA update. This time I gave it a lot of time to complete, usually it seems to hang on the download or prep.

Maybe the releases are done geographically and in GB it will be later.
I have noticed recently that OCLP is no longer up to date with all the releases...maybe the change in personal is having an impact.

Maybe I've been impatient on the download/Prep phases with OTA.
Once, I'm sure I left it overnight (and turned off Sleep) and the following morning it was still stuck.
So I now always download the full installer and run it from /Applications.

 

[peppolone]

Last week I manually installed 24G217 (RC4) on my rMBP10,1 via OCLP 2.4.1 (create installer option) but not yet offered any newer updates OTA.
But there is Safari 26 Dev preview offered. Weird:

View attachment 2546023

OCLP today only offers 15.7 RC5 24G219.

In the past OTA have never downloaded on my MB (would always get stuck).
I always had to use OCLP to download the full installer and run it from /Applications.

you have beta updates off

 

[MacNB2]

you have beta updates off

True. Well spotted. I turned it off after a couple of Beta installs.

 

[nekton1]

Is anybody seeing problems with iMessages only holdin the log-in for about 5 seconds and then requesting a new login ad infinitum. It's happening on two OCLP Macs using 2.4.1 OCLP immediately after the 15.7 RC upgrade with two different iCloud accounts. It only seems to affect iMessages and Mail is working normally. Facetime seems OK too.

 

[MacNB2]

Is anybody seeing problems with iMessages only holdin the log-in for about 5 seconds and then requesting a new login ad infinitum. It's happening on two OCLP Macs using 2.4.1 OCLP immediately after the 15.7 RC upgrade with two different iCloud accounts. It only seems to affect iMessages and Mail is working normally. Facetime seems OK too.

iMessages working fine on my rMBP10,1 on 15.7 RC 4. Been using it all day today.

 

[nekton1]

iMessages working fine on my rMBP10,1 on 15.7 RC 4. Been using it all day today.

Mine started off OK but this problem suddenly started after about 12 hours. Maybe roll back to earlier Sequoia 15.6 final and see if that fixes it.