The update from macOS Tahoe 26.1 to 26.2 is fairly large, but appears to be largely routine maintenance, together with some important security updates.

At last, Apple has provided more detail of some of the improvements and changes in this summary. These include a new Edge Light feature to light your face during low-light video calls, Podcasts gaining automatic chapter generation, filters added to the Games library, AirDrop codes providing an additional means of verification with unknown contacts, and enhancements to Freeform tables.

Security release notes report a total of 46 vulnerabilities addressed. Among those are multiple WebKit vulnerabilities, including two that Apple believes have been exploited already “in an extremely sophisticated attack against specific targeted individuals” in earlier versions of iOS. Those alone make 26.2 a compelling early update.

The build number of macOS 26.2 is 25C56, it updates iBoot firmware to version 13822.61.10 on Apple silicon Macs and Intel firmware to 2094.40.1.0.0 (iBridge 23.16.12048.0.0,0). Note that Intel Macs only have an update to iBridge, and not their EFI firmware this time.

Significant changes seen in bundled apps include:

• Freeform, to version 4.2
• Music, to version 1.6.2
• Passwords, to version 2.2
• Safari, to version 26.2 (21623.1.14.11.9)
• TV, to version 1.6.2.

Significant changes seen in /System/Library are relatively few, with many minor increments to build numbers. Notable changes include:

• All AGX kernel extensions are updated
• AppleDockConnect is a new kernel extension to accompany AppleDockChannel
• AppleThunderboltRDMA is another new kernel extension
• APFS is updated to version 2632.40.17, a tiny increment
• the webcontentfilter kext has been removed
• there is no change in the RichText.mdimporter for Spotlight indexing, implying that no bugs have been fixed in it.

The total number of bundles in that folder has only increased slightly, from 9785 to 9832.

One common criticism of the new Liquid Glass option added to Appearance settings in 26.1 is that Reduce transparency in Accessibility settings no longer reduces some transparency effects. There has been no change in that behaviour in 26.2, which continues to apply Liquid Glass effects in locations such as sidebars despite Reduce transparency being turned on. Our cries have clearly fallen on deaf ears.

I have also confirmed, as I suspected from the lack of change in the RichText.mdimporter, that the ‘LG bug’ in Spotlight remains, and still hasn’t been fixed.

Apple has just released the update to bring macOS Tahoe to version 26.2, and security updates to Sequoia and Sonoma to bring them to 15.7.3 and 14.8.3 respectively. The latter two should also have associated Safari updates.

The update to 26.2 is about 3.78 GB to download to an Apple silicon Mac, and 2.5 GB for an Intel Mac. Some Macs may require larger downloads, though, with some in excess of 10 GB.

Tahoe 26.2 introduces Edge Light to light your face during low-light video calls, improves Podcasts with automatic chapter generation, adds filters to the Games library, adds AirDrop codes as an additional verification with unknown contacts, enhances Freeform tables, and more. Fuller release notes are available here, and are a significant improvement in themselves.

Security release notes for Tahoe report a total of 46 vulnerabilities addressed. Among them are multiple WebKit vulnerabilities, including two that Apple believes have been exploited already “in an extremely sophisticated attack against specific targeted individuals” in earlier versions of iOS. Notes for Sequoia list 25, and those for Sonoma 21. The Safari update for Sequoia and Sonoma does address those critical vulnerabilities.

Its macOS build number is 25C56, it updates iBoot firmware to version 13822.61.10 on Apple silicon Macs and Intel firmware to 2094.40.1.0.0 (iBridge 23.16.12048.0.0,0), and brings Safari to version 26.2 (21623.1.14.11.9).

Last updated at 23:10 GMT 12 December 2025.

Apple has just released an update to XProtect, bringing it to version 5324. As usual, it doesn’t release information about what security issues this update might add or change.

This version adds another new Yara rule in its TIMELYTURTLE series, for MACOS.TIMELYTURTLE.SWNOA, and amends the recent rules for MACOS.SOMA.AUENB and MACOS.DUBROBBER.CHBI. In the new XPScripts.yr file introduced in XProtect 5322, it reverses the order of the two rules and amends MACOS.OSASCRIPT.COTABR.

You can check whether this update has been installed by opening System Information via About This Mac, and selecting the Installations item under Software.

A full listing of security data file versions is given by SilentKnight and SystHist for El Capitan to Tahoe available from their product page. If your Mac hasn’t yet installed this update, you can force it using SilentKnight or at the command line.

If you want to install this as a named update in SilentKnight, its label is XProtectPlistConfigData_10_15-5324

Sequoia and Tahoe systems only

This update has already been released for Sequoia and Tahoe via iCloud. If you want to check it manually, use the Terminal command
sudo xprotect check
then enter your admin password. If that returns version 5324 but your Mac still reports an older version is installed, you should be able to force the update using
sudo xprotect update

The first thing I discovered when I started hunting provenance extended attributes (xattr) was a bug in my free utility xattred. This can result in the app crashing when using its Crawler to explore xattrs on items in a folder. I have fixed that in this new version 1.7, available below.

My hunt was by and large successful, with a great many com.apple.provenance xattrs caught. There are some interesting problems, though.

Looking through the contents of the main Applications folder, there are three groups of apps:

• Those with Apple certificates, including bundled apps and those delivered through the App Store (which are all signed by Apple, not their developer), which have no provenance xattr as they don’t register with provenance tracking.
• Apps with third-party certificates that have been installed simply, which have a single provenance xattr on the app bundle containing that app’s provenance ID.
• Apps with third-party certificates that have been installed or updated using a third-party app such as their Sparkle update mechanism, whose entire contents have provenance xattrs attached by the installer/updater, so not bearing the app’s provenance ID.

Examining files in the ~/Documents folder, there are plenty with provenance xattrs, and a great many with quarantine xattrs bearing information about their history including origin. Although some of the provenance IDs on them don’t match with those of apps, there’s sufficient to provide useful information about many without accessing the ExecPolicy database’s Provenance Tracking table. Therefore I will proceed to code up Providable over the next couple of weeks.

This new version of xattred should fix that crashing bug in its Crawler feature, that enables you to scan folders for information about their xattrs.

I have also looked at an issue that I’ve experienced when editing some xattrs such as the new com.apple.icon.folder type used in Tahoe to customise the appearance of folders. When editing them, some of the double-quotation marks used in text content can become changed to ‘smart’ quotes, which isn’t in the least bit smart, as it prevents that xattr from functioning correctly. Although that feature is disabled for that text view, macOS seems to be ignoring its setting and substituting smart quotes regardless. Provided that you’re aware of this danger and take care to ensure that all quotation marks are non-smart, you can edit xattrs successfully. Hopefully this will be improved in the future.

xattred version 1.7 for macOS 11.5 or later is available from here: xattred17
from Downloads above, from its Product Page, and via its auto-update mechanism.

Enjoy!

As promised last week, I have now produced a new version of Textovert that can extract text from PDF files and convert that to any of the nine formats supported by the app. Testing here suggests this could be generally useful, as the quality of output files appears good, and worth the small effort in conversion.

This new version offers the same conversions as the first, using textutil, but handles PDF files with a .pdf extension (case-insensitive) differently. When converting them to plain text, it loads the PDF and uses Quartz 2D’s PDF engine to extract the text for saving as a text file. When the output format is set to Rich Text (RTF), it uses the same engine to extract styled text and saves that as an RTF file. Note that doesn’t include layout information, but is generally a fairly faithful representation of the styles used in the original.

For the seven other output formats, Textovert first extracts styled text into a temporary RTF file, then hands that over to textutil to convert it to the selected output format.

Each PDF conversion is handled in a separate thread running at a high QoS in the background, to avoid blocking the main thread. As large conversions can take many seconds or even minutes to complete, Textovert’s window tracks how many are running at the moment. That’s most useful when converting batches of PDFs, when it’s easy to forget the last one or two that are still in progress.

Because each conversion gets its own thread, multiple simultaneous conversions will occupy as many CPU cores as are available, as shown in this CPU History for my seven heavyweight test PDFs. At the left of each chart the CPU % rises rapidly as all seven conversion threads are active. As those complete, the bursts of CPU activity diminish until they are from the single thread converting the largest of the PDFs.

Among those test PDFs are:

• A 527-page book of 10.9 MB
• A 5,754-page ISA reference of 14.7 MB
• An 867-page book of 18 MB
• A 141-page software manual of 24.4 MB
• A 12,940-page reference manual created using FrameMaker 2019 and Adobe Acrobat Distiller 23.0 on Windows of 76.6 MB size, © 2013-2023 Arm Limited.

To give you an idea of the quality of output, this is a tiny excerpt of the last of those in its original PDF:

And this is the webarchive output from Textovert viewed in Safari:

Converting PDFs does require significantly more memory than those performed by textutil alone. For most documents of more modest size, 100-500 MB is usual, but my monster test PDFs usually rise toward 5 GB during their conversion. I have checked this version for memory leaks, and although it can hold onto some memory longer than I would have expected, that doesn’t continue to rise, and no leak is apparent.

Because PDF conversions are more intricate, I have added extensive error-reporting. For example, if you try to convert a PDF containing scanned images without any recognised text, that won’t have any recoverable text available, as will be reported in the main window. Once conversion is complete, Textovert tries to delete the intermediate RTF file from temporary storage, and if that fails, you’ll be warned.

Textovert version 1.1 for macOS 14.6 and later is now available from here: textovert11
from Downloads above, and from its Product Page.

I hope you find it useful.

Yesterday I sang the praises of the little-known command tool textutil for converting text content between nine different formats. As I promised, today I offer a small wrapper app to make those conversions more convenient: Textovert.

textutil provides three features: general document information, text format conversion, and document concatenation. The first of those is probably best left to editors, and the last requires a document layout editor, so I chickened out of those for the time being. Textovert version 1.0 runs commands of the form
textutil -convert format filename1 -output filename2
where format is the format of the output file, filename1 is the input, and filename2 the output file.

You select the output format from the nine options in the window’s dropdown menu, before dropping any files onto that window. If you want to perform multiple conversions at the same time, you can open two or more windows and set each to its own output format.

Then drag and drop files to be converted onto the window. This version of Textovert only accepts files (and document bundles like RTFD), not folders, as they present several problems I’d rather not go into just yet. Textovert will then work through all the files one at a time and prompt you to select a filename and location for the converted file to be saved. For those converting just one or a handful of files at a time, this gives you fine control.

For those who have just dropped a batch of dozens of files onto the window, Textovert’s default behaviour is to save the converted files in the same location as the originals, with the same filename but the new extension. Thus, converting ~/Documents/Project/Meeting.doc to RTF will default to saving that converted file as ~/Documents/Project/Meeting.rtf. If you’re happy with that, you can click your way through saving each document without checking further.

As each converted file is saved, Textovert writes a simple one-line report to its window, giving the original filename, to mark success, and the converted file’s extension. You can select and copy those from its window if you want to keep a record.

That screenshot was taken during testing, and shows two unsuccessful conversions, marked with a red exclamation mark. Hopefully you won’t encounter any of those.

You should be able to convert pretty well any file, although how much text will be recovered depends on textutil‘s skills, not mine. The app comes with its own short Help book, accessible through the Help menu, and provided separately as well. It requires a minimum of Sonoma 14.6 to support its SwiftUI interface.

Textovert 1.0 is now available from here: textovert10
from Downloads above, and from its Product Page.

Enjoy!

Apple has just released its regular weekly update to XProtect, bringing it to version 5323. As usual, it doesn’t release information about what security issues this update might add or change.

This version adds five new Yara rules in its TIMELYTURTLE series, for MACOS.TIMELYTURTLE.DYCASWOC, MACOS.TIMELYTURTLE.DYCASWOCB, MACOS.TIMELYTURTLE.LELINO, MACOS.TIMELYTURTLE.TRNO, MACOS.TIMELYTURTLE.DYHEOC, and a single new rule for MACOS.REALSTAR.VO, which appears to be a new genus of malware.

You can check whether this update has been installed by opening System Information via About This Mac, and selecting the Installations item under Software.

A full listing of security data file versions is given by SilentKnight and SystHist for El Capitan to Tahoe available from their product page. If your Mac hasn’t yet installed this update, you can force it using SilentKnight or at the command line.

If you want to install this as a named update in SilentKnight, its label is XProtectPlistConfigData_10_15-5323

Sequoia and Tahoe systems only

This update has at last been released for Sequoia and Tahoe via iCloud. If you want to check it manually, use the Terminal command
sudo xprotect check
then enter your admin password. If that returns version 5323 but your Mac still reports an older version is installed, you should be able to force the update using
sudo xprotect update

Update

As of 22:00 GMT on 11 November, the update to 5323 has reappeared for download to the traditional location via Software Update or SilentKnight, and is available through the iCloud connection for Sequoia and Tahoe.

Apple has just released an update to XProtect for all versions of macOS, bringing it to version 5322. At the same time there’s an update to XProtect Remediator for Catalina and later, bringing that to version 156. As usual, it doesn’t release information about what security issues these updates might add or change.

This version of XProtect adds one new rule to its main Yara file, for MACOS.TIMELYTURTLE.DYCAOC, and amends the existing rule for MACOS.SOMA.OCENA. It also adds a new XPScripts.yr file containing two rules using an osascript (AppleScript) interpreter, MACOS.OSASCRIPT.COTABR and MACOS.OSASCRIPT.COTAWA.

XProtect Remediator 156, which follows version 153, adds one new scanning module, XProtectRemediatorConductor. It will be interesting to see whether this refers to a new codename, or its role among other scanning modules.

The XProtect Behavioural or Bastion rules embedded in XProtect Remediator 156 amend Rule 22, but don’t add any further rules.

You can check whether these updates have been installed by opening System Information via About This Mac, and selecting the Installations item under Software.

A full listing of security data file versions is given by SilentKnight and SystHist for El Capitan to Tahoe available from their product page. If your Mac hasn’t yet installed this update, you can force it using SilentKnight or at the command line.

If you want to install these as a named updates in SilentKnight, their labels are XProtectPlistConfigData_10_15-5322 and XProtectPayloads_10_15-156

Sequoia and Tahoe systems only

This XProtect update has finally been released for Sequoia and Tahoe via iCloud. If you want to check it manually, use the Terminal command
sudo xprotect check
then enter your admin password. If that returns version 5322 but your Mac still reports an older version is installed, you should be able to force the update using
sudo xprotect update

Update: the iCloud update was finally made available after 22:00 GMT on 5 November, over 24 hours after the release of this new version of XProtect.

The update bringing macOS 26 Tahoe to version 26.1 is substantial, and has a great many increases in build numbers, so this overview of its changes concentrates on those substantial enough to merit an increment in version number. The update itself varies widely in size, ranging between about 3-14 GB, which is unusual and hard to explain.

Apple’s security release notes report that it addresses a total of 90 vulnerabilities, none of which have been reported as being exploited in the wild.

General release notes are extremely brief, and include:

• a new tinted appearance option for Liquid Glass,
• AutoMix support for Apple Music over AirPlay,
• better FaceTime audio over low bandwidth connections,
• Communication Safety and Web content filters are enabled by default for existing child accounts.

The only other release notes available are those for enterprise.

There are firmware updates to bring Intel T2 Macs to 2094.40.1.0.0 (iBridge 23.16.11072.0.0,0), and Apple silicon Macs to iBoot version 13822.41.1. The build number for macOS 26.1 is 25B78.

Version changes seen in bundled apps include:

• Audio MIDI Setup to 3.7
• Books to 8.1
• ColorSync Utility to 12.2.0
• Freeform to 4.1
• iPhone Mirroring to 1.5
• Music to 1.6.1
• News to 11.1
• Passwords to 2.1
• Safari to 26.1 (21622.2.11.11.9)
• Screen Sharing to 6.1
• Stocks to 8.1
• Tips to 26.1 (routine for this update)
• TV to 1.6.1.

Notable changes seen in /System/Library include:

• several PDF Automator actions have build increments
• Archive Utility has changed, with removal of a pref pane
• SystemIntents is a new app added to CoreServices at version 1.0
• two new driver extensions (dext) have been added, for AppleSunriseBluetooth and AppleSunriseWLAN
• kernel extensions updated include many for AGX, as well as AppleDiskImages2 and AppleEmbeddedAudio
• new kernel extensions include AppleSPINORFlasherDriver at version 1.0, and a family of AppleT8142 kexts to support the M5
• APFS is updated to version 2632.40.15
• added to DiagnosticExtensions are new items ScreenTimeDiagnosticExtension and ToolKitDiagnosticExtension
• added to PrivateFrameworks are new SpotlightDiagnostics and ThumbnailsBlastDoorSupport frameworks
• the RichText mdimporter is unchanged, remaining at version 6.9 (350).

As expected, the Spotlight bug described here recently remains unchanged in macOS 26.1.

Apple has just released macOS 26.1 Tahoe, together with security updates for Sequoia to bring it to 15.7.2, and for Sonoma to 14.8.2. There are also separate updates for Safari in 15.7.2 and 14.8.2.

The Tahoe update has at last appeared here in Europe, and is a hefty 4.7 GB for Apple silicon Macs.

Security release notes for 26.1 report around 90 vulnerabilities have been fixed, none of which have been reported as being exploited in the wild. Listings for Sequoia give about 54, and for Sonoma about 46.

The only other release notes available so far are for enterprise here.

Details provided by Apple beyond the general ‘bug fixes and updates’ include a new tinted option for Liquid Glass, that has already been widely discussed among beta-testers, Apple Music AutoMix support over AirPlay, better FaceTime audio in low bandwidth connections, and Communication Safety and Web content filters enabled by default for existing child accounts. That seems surprisingly little to squeeze into a mere 4.7 GB, and I suspect there will have been more extensive changes.

The build number for macOS 26.1 is 25B78. Firmware in Apple silicon Macs is updated to iBoot version 13822.41.1, and Safari is version 26.1 (21622.2.11.11.9).

I will post a detailed analysis of changes tomorrow, 4 November.

Important note for those intending to update to 15.7.2 or 14.8.2 rather than Tahoe:
To be certain the correct updates will be installed, in the Also Available section of Software Update, click on the ⓘ button to the right of the Update Now button for Other Updates and select the appropriate macOS update and Safari, deselecting the Tahoe update there. That should ensure you don’t inadvertently upgrade to Tahoe.

[Last updated 06:42 4 November 2025]

Apple has just released an additional out-of-cycle update to XProtect, bringing it to version 5321. As usual, it doesn’t release information about what security issues this update might add or change.

This version has no changes from 5320 in its Resources property lists or Yara file. Indeed, the version number given in XProtect.meta.plist remains 5320, although those given in the bundle’s Info.plist and version.plist are 5321.

You can check whether this update has been installed by opening System Information via About This Mac, and selecting the Installations item under Software.

A full listing of security data file versions is given by SilentKnight and SystHist for El Capitan to Tahoe available from their product page. If your Mac hasn’t yet installed this update, you can force it using SilentKnight or at the command line.

If you want to install this as a named update in SilentKnight, its label is XProtectPlistConfigData_10_15-5321

Sequoia and Tahoe systems only

This update has already been released for Sequoia and Tahoe via iCloud. If you want to check it manually, use the Terminal command
sudo xprotect check
then enter your admin password. If that returns version 5321 but your Mac still reports an older version is installed, you should be able to force the update using
sudo xprotect update

Apple has just released its weekly update to XProtect, bringing it to version 5320. As usual, it doesn’t release information about what security issues this update might add or change.

This version adds a single new Yara rule for MACOS.SOMA.OCENB, another for the vast Soma/Amos family.

You can check whether this update has been installed by opening System Information via About This Mac, and selecting the Installations item under Software.

A full listing of security data file versions is given by SilentKnight and SystHist for El Capitan to Tahoe available from their product page. If your Mac hasn’t yet installed this update, you can force it using SilentKnight or at the command line.

If you want to install this as a named update in SilentKnight, its label is XProtectPlistConfigData_10_15-5320

Sequoia and Tahoe systems only

This update has already been released for Sequoia and Tahoe via iCloud. If you want to check it manually, use the Terminal command
sudo xprotect check
then enter your admin password. If that returns version 5320 but your Mac still reports an older version is installed, you should be able to force the update using
sudo xprotect update

As I explained a couple of weeks ago, log entries come in four flavours: regular, activity, boundary and signpost. These types have previously been distinguished by a single digit in the entry. Although the latter two aren’t commonly used, boundaries because they’re uncommon, and signposts because they’re seldom useful, activities do need to be distinguished from regular entries. This new build of LogUI uses emoji to do that, and brings improvements in exported entries.

Log list

Rather than display a single digit for the type of each log entry, LogUI now uses an emoji:

1. regular entries are marked with a right-pointing triangle,
2. activities with a softball,
3. boundaries with a clapper board,
4. signposts with a round pushpin.

Those make it much easier to scroll down through entries looking for activities, for example.

Rich Text export

Those are also shown in extracts exported to Rich Text Format files. Those exports have been improved to more closely reflect entries as they’re displayed in LogUI’s window, including the new type emoji, with the addition of extra fields for signposts.

Copy

The other form of exported entries are those copied from the list, by selecting them in the window and using the Copy command. Rather than trying to copy the full text contents of all the fields, this has previously brought a selection separated using tabs. In this version, the fields are expanded and use a vertical bar | as a separator, to provide
date | level | category | sender | process | subsystem | message or signpostName

Where an entry has no data for that field, it’s left empty. As signpost entries don’t have message fields, and the other three types don’t have signpostNames, the last of those depends on the entry type. This should make copied signposts more meaningful.

For example, a short regular entry might provide
2025-10-19 14:48:00.385306+0100 | info | SDNearbyAgentCore | CoreUtils | sharingd | com.apple.sharing | Checking active FT call count: 0
an activity
2025-10-19 14:48:00.902644+0100 | | | RunningBoard | runningboardd | | state update
and a signpost
2025-10-19 14:48:00.435671+0100 | | tracing | SkyLight | WindowServer | com.apple.SkyLight | FrameLifetime

LogUI 1.0 build 77 for macOS 14.6 and later is now available from here: logui177
from Downloads above, and from its Product Page.

Enjoy!

Apple has just released its weekly update to XProtect, bringing it to version 5319. As usual, it doesn’t release information about what security issues this update might add or change.

This version adds three new Yara rules. MACOS.SOMA.OCENA is yet another for the vast Soma/Amos family, and there are two for the far newer MACOS.ODYSSEY group, MACOS.ODYSSEY.SOCGO and MACOS.ODYSSEY.SEENA.

You can check whether this update has been installed by opening System Information via About This Mac, and selecting the Installations item under Software.

A full listing of security data file versions is given by SilentKnight and SystHist for El Capitan to Tahoe available from their product page. If your Mac hasn’t yet installed this update, you can force it using SilentKnight or at the command line.

If you want to install this as a named update in SilentKnight, its label is XProtectPlistConfigData_10_15-5319

Sequoia and Tahoe systems only

This update has already been released for Sequoia and Tahoe via iCloud. If you want to check it manually, use the Terminal command
sudo xprotect check
then enter your admin password. If that returns version 5319 but your Mac still reports an older version is installed, you should be able to force the update using
sudo xprotect update

Apple has released its weekly update to XProtect, bringing it to version 5318. As usual, it doesn’t release information about what security issues this update might add or change.

This version makes several changes to the Yara definition for MACOS.COMPLIANTPIRATE.DEFU, but doesn’t add any new detection rules.

You can check whether this update has been installed by opening System Information via About This Mac, and selecting the Installations item under Software.

A full listing of security data file versions is given by SilentKnight and SystHist for El Capitan to Tahoe available from their product page. If your Mac hasn’t yet installed this update, you can force it using SilentKnight or at the command line.

If you want to install this as a named update in SilentKnight, its label is XProtectPlistConfigData_10_15-5318

Sequoia and Tahoe systems only

This update has now been released for Sequoia and Tahoe via iCloud. If you want to check it manually, use the Terminal command
sudo xprotect check
then enter your admin password. If that returns version 5318 but your Mac still reports an older version is installed, you should be able to force the update using
sudo xprotect update
However, if the regular update has been installed in the old location, XProtect is likely to update its new location from that. There’s nothing you can do to force that, but it may well explain why your Mac seems to have updated itself.

Updated 0450GMT 9 October 2025.

Apple has released its weekly update to XProtect, bringing it to version 5317. As usual, it doesn’t release information about what security issues this update might add or change.

This version adds five new detection signatures to its Yara file. These include another newcomer with four signatures, MACOS.DAILYDUMPLING, and MACOS.SOMA.SEEND to add to the large Amos/Soma family.

You can check whether this update has been installed by opening System Information via About This Mac, and selecting the Installations item under Software.

A full listing of security data file versions is given by SilentKnight and SystHist for El Capitan to Tahoe available from their product page. If your Mac hasn’t yet installed this update, you can force it using SilentKnight or at the command line.

If you want to install this as a named update in SilentKnight, its label is XProtectPlistConfigData_10_15-5317

I apologise for the late announcement of this update, which seems to have been released after 22:00 GMT on 30 September, but was still incomplete here through the whole of today, 1 October.

Sequoia and Tahoe systems only

This update has already been released for Sequoia and Tahoe via iCloud. If you want to check it manually, use the Terminal command
sudo xprotect check
then enter your admin password. If that returns version 5317 but your Mac still reports an older version is installed, you should be able to force the update using
sudo xprotect update

As promised earlier this week, I’m delighted to offer a new version of my log browser LogUI that provides a Diagnostics Tool to help you understand log folders and discover any problems with them.

Open its window using the Diagnostics Tool command in the Window menu, and you’re offered four tools at the top.

The first, Get Info, performs a simple analysis on the files in the selected diagnostics folder. By default, that’s your current live log, in the path /private/var/db/diagnostics, in your Data volume. After telling you how many log files there are in each of its three main folders, and the number of timesync files, it reports the date and time of the oldest Persist log file, marking the start of the continuous log record, in this case nearly 4 days ago.

You can use these tools on any diagnostics folder you can access through its dialog. This includes Time Machine backups, external boot disks, and other bootable systems. Don’t click on the Open button, though, until you’ve selected the diagnostics folder in the view above.

Locating the diagnostics folder in a Time Machine backup can be interesting, but once you’ve found it, LogUI will happily check it for you.

The Catalogue tool lists all the tracev3 log files in the folders inside diagnostics, starting with those in Persist. It gives each file’s creation and modification timestamps, indicating the range for log entries within them, their size in bytes, and an estimate of the period that file covers.

The Analyse tool extracts information from each of logd‘s statistics files, with the number of log entries broken down in frequency order. If you tick the CSV checkbox, they will be delivered in CSV format, ready to import into other software such as a spreadsheet.

The last of the tools, Save Text, saves the contents of the window to a text file for your records.

Further information about locations used for log files is in this article.

LogUI 1.0 build 74 is now available from here: logui174
from Downloads above, and from its Product Page.

Enjoy!

Apple has just released macOS 26.0.1 Tahoe, which fixes the problem upgrading to 26.0 on Mac Studio M3 Ultra models, and apparently fixes other urgent bugs.

For Apple silicon, the update is a 1.76 GB download.

Tahoe 26.0.1 fixes a single vulnerability, although Apple doesn’t report that it’s already being exploited. The same is also fixed in Sequoia 15.7.1, and in Sonoma 14.8.1.

macOS 26.0.1 has build number of 25A362, Safari version 26.0.1 (21622.1.22.11.15), and a Darwin Kernel version of 25.0.0. There has been no change in iBoot firmware, which remains at 13822.1.2.

As Apple hasn’t been forthcoming about what else has changed, here’s my list:

• Passwords app has gone from version 2.0 to 2.0.1, suggesting it has at least one significant bug fixed.
• AppKit framework has had an increment in build number, also suggesting bug fixes.
• CoreText framework likewise, with bug fixes for a higher build number, possibly related to the fixed vulnerability in font handling.
• Security framework has a substantial increase in build number, implying bug fixes there as well.

Otherwise, remarkably little has changed.

Updated 1910 29 September 2025.

Apple has just released its weekly update to XProtect, bringing it to version 5316. As usual, it doesn’t release information about what security issues this update might add or change.

This version adds nine new detection signatures to its Yara file. These include five with novel names:

• MACOS.SULFURSLAB.JS
• MACOS.FOXTAIL.DEST
• MACOS.FLAMINGOFEET.AR
• MACOS.COMPLIANTPIRATE.DEFU
• MACOS.TETRAGONE.FU

together with MACOS.ODYSSEY.SOBGO for the recently added Odyssey, and MACOS.SOMA.SEENB, MACOS.SOMA.SEENC and MACOS.SOMA.INGOBA for the prolific Amos/Soma family.

You can check whether this update has been installed by opening System Information via About This Mac, and selecting the Installations item under Software.

A full listing of security data file versions is given by SilentKnight and SystHist for El Capitan to Tahoe available from their product page. If your Mac hasn’t yet installed this update, you can force it using SilentKnight or at the command line.

If you want to install this as a named update in SilentKnight, its label is XProtectPlistConfigData_10_15-5316

Sequoia and Tahoe systems only

This update has already been released for Sequoia and Tahoe via iCloud. If you want to check it manually, use the Terminal command
sudo xprotect check
then enter your admin password. If that returns version 5316 but your Mac still reports an older version is installed, you may be able to force the update using
sudo xprotect update