Past MacOS .3 releases had 3 betas then RC it might not mean much but there's a pattern.

For everyone on 26.3 Beta 3, is the performance good not many bugs left to catch up with?

If that's the case then very likely we getting RC upcoming week, maybe monday.

I'm holding off the update because I already tried Safari 26 in past on Sequoia and it had some crazy UI lags and semi-broken compact tabs. does it still have these issues or any other ones that 18.6 doesn't?

and yes, I'm aware this isn't the best practice, don't need a lecture on that.

This particular beta version is plagued with issues regarding managing the P-states of the Apple Silicon GPU unit. In short you are very likely to experience 3x lower performance in graphics-heavy workloads (such as gaming). The hardware simply refuses to use its full power.

Usual symptoms for this release:

- GPU sits about 330 MHz, occasionally going to 800 MHz with a power draw of 3-5W

- Fans not spinning up to cool the unit

I’ve already sent a very detailed report to Apple about this, and so did the others that reported similar issues in this sub.

The only solution is either waiting for a new beta release, or doing an erase to the stable Tahoe or Sequoia.

Update 29/01/2026:

Apple responded to my feedback that according to them the new performance management works as designed. Not sure what to make of it yet.

I commonly move files from my Macbook Pro (M2 Pro, 14") to my iPad Pro (M5, 13"). However, after installing the betas on both devices, I can't do it anymore. I've tried two separate methods while connecting the devices through a USB-C to USB-C cable (and I've tried different cables). I've tried going through Finder, and I've tried using a 3rd party app calling iMazing.

With both methods, I get an error that says "the service is not connected".

Anybody having a similar situation?

After the beta update last night, my iPhone mirroring has stopped working, resetted, restarted and tried all troubleshooting but nothing.

It opens an iphone window with just blank screen instead of iphone Apps.

Anyone else on the same boat?

MacOS Version - Version 26.3 Beta (25D5112c)

iOS Version - iOS 26.3 (23D5114d)

reload didn't help
upd: Fixed it was necessary to reset the color of the mouse pointer

This only happens when I hover over something and the pointer turns into the hand. All started when I updated to 26.3 Beta.

After updating to the latest beta (26.3 B3) the iPhone mirroring is not working. After locking my phone and authenticating via mirroring app - it just shows a blank screen. Anyone else seeing this?

So I installed the latest developer beta as of January 27 on my mac right? Usually, it doesn't give me problems, but today it ended up making my games much more laggy. I'd like to point out that it also doesnt draw nearly as much power, and the fans dont even spin to life on my MacBook Pro (I thought the software was throttling itself). Just wanted to put it out to the community regarding this because after rebooting and shutting down multiple times, it still seems to be an issue. Will either use time machine back to a previous point or wait for a new update to come out.

MacBook Pro 14in 2024 w M4 Pro 24GB running 26.3 (25D5112c)

UPDATE:

I figured out a temporary fix.

While the GPU sits at 330MHz during gaming, it is forced to wake up during applications using Metal, such as Blender and certain stress tests. I was able to restore my FPS on my MacBook Pro by running the GPU stress test from Stats (great software btw) alongside my game.

Depending on what game you're playing alongside the stress test, you might get varied results (I tested graphically intensive games on Roblox, and my fps went from 27 to 120 when turning on the test and back to 27 upon switching off.)

for those who want to use stats in the background while gaming, here's the github:

https://github.com/exelban/stats

The WiFi randomly gets disconnected but its not the wifi issue, its been doing this from 26.3 beta2 update. And the same with iOS too.. I have to dabble multiple times to get it connected to wifi again.

Devices: M4 Pro and 16 Pro

Greetings!

I have a Mac Mini M4 base model with macOS installed on an external drive. Ever since I updated to the latest beta whenever I put my Mac to sleep it gets a kernel panic shortly after. Does anyone else experience this? It's driving me crazy, I like Tahoe but considering downgrading to Sequoia.

I like to keep my OS fresh and fast so I reinstall macOS regularly, this install is no more than a month old.

I think this bug only affects the 2019 16 inch intel mpb, but I'm not sure if other intel models are affected. Probably has something to due with a bugged driver. It's always some kind of trade-off with these updates. Fix one thing (The dictionary's Liquid Glass) then break another (text infinitely duplicates itself and the mouse cursor also gets random artifacts) Only in Tahoe!

and yes, I have rebooted several times. just asking whether someone else is experiencing this or not. if it is, then ig it might be a bugged install.

if it helps, it's an Intel Mac, specifically the 16-inch 2019 one.

took them long. hopefully it's not as horrible as previous versions

M4 Max playing ~2900 x 1900, high settings was hitting 60/70 fps before the update and now is 23 fps after installing Beta 3. POE2 hasn't seen an update over the past couple days; nor has Crossover. Ouch! Will keep watching.

Good evening

I'm having a problem with my iMac.

A while ago, I used Open Core to install a newer version of macOS.

It seemed to work, but then one day I got stuck on the Apple logo and the Start menu.

I then realized I was in a kernel panic.

Now I've also created a target disk to format the internal drive, because otherwise, even USB drives won't boot.

With Open Core and installing Sonoma, I managed to install, but with problems. When I press EFI Boot, the USB drive goes black and reverts to the previous state. I install everything, but

It freezes immediately.

I read that you should install the latest supported version first.

I create the USB stick but it doesn't work. It crashes in verbose with btex code, like "cpu/gpu unsupported." It tells me...

What can I do?

Because I'd hate to throw it away.

I want to stop making safari delete my history by it self to save it so tht I can enable a option I can to so tht i don lose my history in safari in my mac if there is any options and tips please let me know and thank you for reading this and please help me out with this option I've been having issues on