Well this is a new one… Apple just released macOS Big Sur 11.7.11 (20G1443) Update!
Apple ended support for macOS Big Sur in September 2023. With this release, Big Sur now ties OS X Tiger (10.4.11) for the most point‑release updates in macOS history. Who would have thought we’d see another update for Big Sur? We did get a hint last week when Apple pushed out several older iOS updates, but I still didn’t expect any new macOS releases. I’m glad I was wrong.
This will allow important services like device activation, FaceTime, iMessage and other services to continue to work after the current certificates expires in January 2027.
I applaud Apple for doing this. We need to recognize that for many people, older computers are their only means of communication. Not everyone has the resources to buy a new device. This update will help those users continue using their Macs and iPhones. It’s especially important to remember how impactful this is in impoverished areas around the world.
Even though Apple updated Big Sur to address these certificate issues, it’s important to remember that the OS is no longer security‑supported. No security updates have been released for it in over two years. If possible, please use OCLP or upgrade to at least the last supported version, macOS Sonoma.
Big Sur Update Quick Overview
macOS Big Sur 11.7.11 Update – This update extends the certification required by features such as iMessage, FaceTime, and device activation to continue working after January 2027.
Big Sur 11.7.11 Full installer is available!
Apple stopped releasing M1 IPSW restore files after version 11.6.
Safari update = 16.6.1 is the latest version available
macOS Big Sur Update Summary
New Features – None
Resolved Issues – Multiple certificates were updated
Apple has just released the very first macOS Tahoe Background Security Improvement Update: macOS Tahoe 26.3.1 (a)25D771280a)
UPDATED: 3/19/26
If this sounds familiar, you are right! Starting in macOS Ventura, Apple added a new security feature called “Rapid Security Response” or RSR for short. This new update system was designed so that Apple can quickly deploy a small targeted security update. Users would no longer have to wait for a large OS updates to be fully protected from security vulnerabilities.
Database of all Tahoe BSI Updates
This database will contain changes in the OS Tahoe version number. It will also contain changes in the Safari version number. These changes will occur if there is any, when a BSI update is made available.
NOTE: I’ve included a direct Apple download link for each BSI. The update can’t be installed manually, but you can inspect it. The BSI manual download file format is .aea
OCLP 2.4.1 & macOS Tahoe 26.2 : DO NOT INSTALL! NOT COMPATIBLE YET. This release is in full testing and it is not recommended that you attempt to install it yet.!
macOS Tahoe 26.1 (25B78) is now Available For All Users!
UPDATED: 11/05/25
This article will be continually updated as new information comes in.
Apple just released the 2nd update for macOS Tahoe to the public! Let’s jump in and find out what’s new.
In a surprise, we just got a late afternoon drop! Normally Apple will release the public releases on Monday at 12:00 CDT. But sometimes, like today, we get it mid afternoon drop.
NOTE: The build version changed from 26.1 RC (25B77) to (25B78). So if you were on the beta track, make sure you turn it off and then update to the latest public build.
macOS Tahoe 26.1 Update Patch Notes: This update adds a new tinted option for Liquid Glass along with other features, bug fixes and security updates for your Mac.
The following Apple Support documents have been released:
OCLP 2.4.1 & macOS Tahoe 26.1 : DO NOT INSTALL! NOT COMPATIBLE YET. This release is in full testing and it is not recommended that you attempt to install it yet.!
OCLP 2.4.1 Testing Status = 2013 Mac Pro (15.7.2) 2017 MacBook Pro 15″ (15.7.2) 2011 17″ MacBook Pro (15.7.2) 2011 17″ MacBook Pro (14.8.2) 2014 11″ MacBook Air (14.8.2)
Multiple OS X Lion Recovery Errors – Install Error Can’t download the additional components needed to install Mac OS X.
As of 2025, Mac Internet Recovery versions from 10.7-10.13 are online, but have additional issues . In this article we will focus on the OS X 10.7 Lion install issues from Recovery
In my current quest to fix every single macOS Recovery version from 10.7 to 10.13, the most popular version requested was actually OS X Lion! While that article was helpful if you booted to OS X Lion Internet Recovery, users could have additional problems. One of those problems is this error “Can't download the additional components needed to install Mac OS X” This error can happen with both internet recovery and with a USB Installer. You can also get the error ” An error occurred while preparing the installation. Try running this application again.“
OS X Lion was actually the very first version of Internet Recovery. So it is now the oldest version still online. The fact at Apple is still maintaining Lion’s Internet Recovery server is great, but it is now completely broken.
Keep in mind, this is NOT the Date and Time issue that most articles point to. That fix worked in the past but does not work anymore. So internal recovery (command R) and Internet Recovery are currently unable to download and install OS X Lion in its current state.
Previously I provided fixes and workarounds for macOS High Sierra and macOS Sierra Recovery issues.
IMPORTANT NOTE! If you do not want your Mac to upgrade to macOS Tahoe, make sure you turn off “Download new updates when available” This is ESPECIALLY important for OCLP users You can still check for and install updates, but you do not want the update to auto download & stage!
IMPORTANTNOTE 2: Apple has upped the BuildVersion of the public release version of Tahoe from 25A353 to 25A354. So if you are on the beta track and on the RC version, you need to turn off beta updates and upgrade to the public release version.
OpenCore Legacy Patcher for Unsupported Macs
OCLP 2.4.1 & macOS Tahoe 26.0.1 : DO NOT INSTALL! NOT COMPATIBLE YET. This release is in full testing and it is not recommended that you attempt to install it yet.!
UPDATE 1:48PM: Apple is staggering the Tahoe upgrade. The update was at first, only showing up for Intel Mac users. But now is starting to show up on all Apple Silicon Macs. Also don’t forget to turn off the beta track if you were on it before!
IMPORTANT NOTE! If you do not want your Mac to upgrade to macOS Tahoe, make sure you turn off “Download new updates when available” This is ESPECIALLY important for OCLP users You can still check for and install updates, but you do not want the update to auto download & stage!
IMPORTANTNOTE 2: Apple has upped the BuildVersion of the public release version of Tahoe from 25A353 to 25A354. So if you are on the beta track and on the RC version, you need to turn off beta updates and upgrade to the public release version.
Apple has released the main patch notes for what shows up in the update window.
macOS Tahoe introduces a stunning new design and Apple Intelligence features, along with delightful ways to work across your devices and boost your productivity.
Design The new design, featuring Liquid Glass, gives Mac a fresh new look thatÆs more expressive and delightful yet instantly familiar.
Apple Intelligence Unlock new ways to communicate across languages with Live Translation, tap into new intelligent actions in Shortcuts, combine favorite emoji together with Genmoji, and explore more options as you create images in Image Playground.
Continuity Get even more ways to work seamlessly across devices with the all-new Phone app and Live Activities on Mac.
Productivity Discover new features for Spotlight, Shortcuts, and Messages to enhance your productivity and how you communicate on Mac.
OpenCore Legacy Patcher for Unsupported Macs
OCLP 2.4.1 & macOS Tahoe 26 : DO NOT INSTALL! NOT COMPATIBLE YET. This release is in full testing and it is not recommended that you attempt to install it yet.!
This article will be continually updated as new information comes in.
Apple just released macOS Tahoe RC update to developers! Let’s jump in and find out what’s new.
We are getting close to the iPhone event announcement and this could be the final beta version before the RC or Release Candidate!
OpenCore Legacy Patcher for Unsupported Macs
OCLP 2.4.1 & macOS Tahoe 26 RC : DO NOT INSTALL NOT COMPATIBLE YET. This release is in full testing and it is not recommended that you attempt to install it yet.!
macOS Tahoe 26 Beta 9 (25A5351b) is now Available!
UPDATED: 9/02/25
This article will be continually updated as new information comes in.
Apple just released macOS Tahoe Beta 9 update to developers! Let’s jump in and find out what’s new.
We are getting close to the iPhone event announcement and this could be the final beta version before the RC or Release Candidate!
OpenCore Legacy Patcher for Unsupported Macs
OCLP 2.4.1 & macOS Tahoe 26 Beta 9 : DO NOT INSTALL NOT COMPATIBLE YET. This release is in full testing and it is not recommended that you attempt to install it yet.!
