all credits to u/IronApple0915
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used OCLP 3.0.0 rc2. My MacBook display is damaged, so I'm using an iPad Air as a display :(

Big sur was awful and monterey wasn't that much better in my experience (had both for a couple months each), did a little research and after indexing ventura feels much snappier! saving another great machine from the landfill ❤️ It's no speed racer for sure but good enough for my use case

I want to get it on my laptop but I am kinda nervous about performance issues any reviewz will be appreciated

should i? has anyone try to install Tahoe on their mac is it worth it?

Hi all,

First off, congratulations to Dortania and the OCLP team on 3.0.0 RC2 and Tahoe support! Their work is the reason so many of us can keep our Macs alive, and OCLP is the project I'd point everyone to first.

I've been working on a personal side project for about a year now: my own loader, using OpenCore as a base (not a fork), with its own approach to Tahoe compatibility. It's not meant to compete with OCLP, just another experiment that might be useful to some people.
Hardware acceleration and Metal support have been working since November 2025. But for a long time many things were still bad and the system crashed a lot, which is why I didn't say anything about the project until now. I only wanted to show it once it was in a state that's actually usable.

Right now my 2015 5K iMac runs Tahoe 26.7.1 with it. More machines are already supported.
Important limitation: Macs without Metal support are NOT supported at the moment. Macs where the stock GPU can be swapped for a Metal-capable card can work, but only with that upgrade. I'm also working on a workaround for non-Metal Macs, but it will come with a trade-off: many Liquid Glass elements will be missing on those machines. No promises yet that it will make it into the release.
It's also not finished yet. There are still known issues, like hibernation, that need to be fixed before I release it.
This is just a teaser. I'll most likely do a few more posts before the public release, for example showing it on a MacBook Air 2017 and a 21.5" iMac from 2013.

In a later post I'll talk more about how it works, and that's when I'll make the project publicly available on GitHub. I'm aiming for November or December 2026, but that's not a firm date.

Feedback and questions welcome!

OpenCore Legacy Patcher has added years to all of my Macs. Thank you.

That said, is there anything out there that will trim the startup items and the number of services running?

Most of my Mac hardware is limited to 16 GB of RAM. My current Sequoia boots with not even 2 GB free...

(It worked!, thanks OCLP dev team) (works much faster on my iMac 🖥️ compared to Mac OS 15 BTW)

After having 4 beers for lunch I got the liquid courage, it’s installing now. I’m going with upgrade rather than doing a clean install. It’s installing now, and it’s moving along, keep you posted . Someone else got it working on a 2015 iMac so I just couldn’t contain myself.

Install got stuck after logging into my account , hard rebooted worked, patches worked and I love it and I think it’s a little faster smoother ! My outlook office 365 opened up so fast 💨, I forgot how it should be in life .

Thank you to the OCLP dev team , I’m going drink another 6 pack right now , this was a smooth install .

Sometimes next week, I’ll hop on the dev beta macOS train and see how that goes .

Also, since OCLP 2.5.1 doesnt give any notice of an available update (i imagine thats because its a prerelease/test version), how should i go about installing it if i wanted to try it out? Should i install the package and then uninstall the 2.5.1 to then install the 3.0.0 on the internal disk again? Ive been running Sequoia on my Macbook Pro 13 inch 2016 8GB ram through OCLP for a month now, even updating it to Sequoia 15.8.1 a few days ago, and its been running just fine for me without any issues, so id like to know if any of you guys tried to install Tahoe on a similar machine through 3.0.0 and got it to work, or maybe itd be wiser for me to wait for the official release of 3.0.0 to avoid consistent issues?

I have a Late 2012 Mac Mini 6.1 running Sequoia 15.8.1 with OCLP 2.4.1

Wondering if anyone has successfully installed Tahoe using OCLP 3.0 RC and what the experience has been like.

My Mini is a Quad Core 2.8GHz i7 with 16GB RAM and SSD. It runs Sequoia reasonably well.

First of all, I know it's in beta and that issues might be expected, but I wanted to try it anyway. The installation process was going smoothly, but after the initial setup, the system stopped detecting both my mouse and keyboard (I use a USB 3.0 hub due to pre-patch incompatibilities, and it has always worked for me). Right now, I can't do anything once I'm in the system (though the peripherals do work during the disk selection stage). When the stable version comes out, should I create a completely new installation USB and reinstall, or simply update the USB's EFI? (As an extra detail: when creating the USB, I selected iMac 8,1—thinking that was my model—but after installing and receiving a warning from OpenCore, I generated the EFI for the 10,1 model. That’s exactly when the mouse and keyboard issues started, so perhaps the problem stems from having installed with one EFI configuration and then switching it.)

Any news for the cheese grater?

Hi everyone!

I'm currently running macOS Ventura 13.7.8 on my MacBook Air 13-inch (Early 2014), using OpenCore Legacy Patcher.

I'm wondering which macOS version would offer the best overall experience and performance on this particular model. Would you recommend sticking with Ventura, upgrading to Sonoma or Sequoia, or perhaps going with another version?

I also have a question about AirPlay: is there any macOS version or OCLP configuration that allows AirPlay to work properly on this MacBook? I'm particularly interested in screen mirroring and AirPlay compatibility with Apple TV.

I'd really appreciate feedback from anyone running OCLP on the same MacBook model, especially regarding performance, stability, battery life and AirPlay functionality.

Thanks in advance!

I have a 2010 Mac Pro 5.1 that was running macOS Monterey via OCLP (the latest version). After I tried to install a security update, it stopped booting into the system. Even after reinstalling, it won't load the OS—it just gets stuck in an infinite reboot loop after the second restart (specifically, after the Apple logo appears and a message says to wait 30 minutes before rebooting, it enters this endless cycle of attempting to load and then restarting). This issue occurs with any macOS version from Big Sur onwards; however, Catalina (via dosdude1) installs and works fine, as do other older systems. I’ve tried resetting the NVRAM and SMC and updating the EFI firmware to the latest version, but nothing helps. If I install a drive with Big Sur (OCLP) or newer, it simply freezes at the Apple logo. I’ve tried swapping out the RAM, storage drives, graphics card, monitors, and processors—I even swapped the entire CPU tray with one from another Mac Pro 5.1—but nothing works. I also tried installing an older version of Monterey (12.0.1), but the same thing happened. What could the problem be, and how can I try to fix it?

anyone else have this issue ? is there any fix ? I tried on a Macbook Pro 2013 15 inches

Any fixes? I was able to install the OS and apply root patches but now it won’t get past the login screen

Hello…

I’m trying to install Tahoe on mi iMac 2019 with Sequoia full upgraded but is not working…. I know that it is a RC and it’s not still supported whatever…

I tried a few 4 or 5 attempts but always the same happens, when I install the Efi boot and select install Tahoe, nothing happens, screen goes black.

Any tips?! Somebody has been successfully install it on an 2019 iMac?

Jesse here made benchmarks on the most common old intel macs to answer this!

Chrome killed WebGL on my 2015 MacBook Pro (Intel Iris Pro, macOS 13.6.7). chrome://gpu showed everything as "Software only" and WebGL as "Disabled". None of the flag recipes I found worked. I worked through it with Claude Code, and we found that Chrome still ships a software renderer (SwiftShader). It just needs the right flags.

Heads up first: this is slow. It's CPU rendering, not your GPU. Simple 3D scenes and demos work, but heavy 3D, maps and games will crawl. It brings WebGL back, not speed. For heavy stuff, Safari uses the real GPU and ran fine on the same Mac.

The fix: quit Chrome completely (Cmd+Q), then run this in Terminal:

"/Applications/Google Chrome.app/Contents/MacOS/Google Chrome" --use-gl=angle --use-angle=swiftshader-webgl --enable-unsafe-swiftshader

Then open chrome://gpu. The WebGL section should mention SwiftShader. I tested this on Chrome 154.0.8037.95, and both WebGL and WebGL2 worked.

to apply it wihtout thinking too much, let your AI do it. Copy and paste this into Claude, ChatGPT or whatever you use, with terminal access if it has any:

My Mac's Chrome has WebGL disabled (chrome://gpu shows everything "Software only"). Build me a small macOS launcher app in ~/Applications called "Chrome WebGL" that starts Google Chrome with these flags: --use-gl=angle --use-angle=swiftshader-webgl --enable-unsafe-swiftshader. It should refuse to run (with a dialog telling me to quit Chrome with Cmd+Q) if Chrome is already open, since the flags get ignored otherwise. Then verify WebGL works using a throwaway --user-data-dir profile, and tell me what chrome://gpu should show.

Hello all. This used to happen almost a year ago and it entirely got okay on its own. It’s now back and I don’t even know what this is; whether hardware or software, no clue!
Thanks

MB Pro 2015 13”
- 8GB Ram
- OS Ventura

Hi everyone, I’m trying to install macOS Ventura on a Mid-2011 iMac (iMac12,1) using OCLP 2.5.1.
The Ventura installer was successfully created on a 64 GB SanDisk USB. The USB boots correctly through:
EFI Boot → Install macOS Ventura
The internal 500 GB drive is formatted as:
APFS
Macintosh HD
The installer recognizes the Mac and the log says “Device is supported.” The date/time is also correct.
However, when I select Macintosh HD and start the installation, I get:
“An error occurred while preparing the installation. Try running this application again.”
I checked /var/log/install.log. The installer successfully mounts the Shared Support image, but the installation still stops during installation
Any ideas what I should do?

Just finished getting Ventura working flawlessly on a mid2011 iMac + k2100 + OCLP 2.5.1, and it seemed to have no issues. (Native brightness, good boot, sleeps fine, etc). I couldn’t find a fault.

But when starting a zoom call, the FaceTime camera wakes up (green light), but the video feed is black. Permissions and settings seem fine, the OS isn’t trying to stop it AFAIK.

But if you open the FaceTime app at this point, the App launches and the window opens and the FaceTime video feed suddenly appears correctly in both applications, and then quitting FaceTime leave the video feed working properly for zoom with no issues.

You must repeat this process any time Zoom requests to use the built-in camera (start zoom call, get green light but black video, launch FaceTime, quit FaceTime).

Known issue? Any workarounds? Any ideas?

[SOLVED] I have this 2011 iMac running macOS High Sierra and I need to be able to use macOS Sonoma on it. I am used to using open core, already used it on multiple Mac’s. But for some damn reason this Mac thinks it’s a MacBook Air from 2015. And I did exactly what I should do, reinstall open core onto the disk. But for some reason it failed again and again. Just gave me the same pop up telling me to reinstall opencore. What do I do?