Apple has released the enterprise release notes for macOS 26.5, outlining numerous fixes for problems affecting managed Macs.
### macOS 26.5 resolves black screen issues on enterprise Macs
With the launch of macOS 26.5 earlier this week, Apple also shared its release notes and the comprehensive list of security fixes included in the update. The company has refreshed its “What’s new for enterprise in macOS Tahoe 26” page, incorporating the enterprise bug fixes found in macOS 26.5.
This update rectifies issues related to device management service enrollments and unpredicted restarts impacting the MacBook Air with M5, as well as the MacBook Pro featuring M5 Pro or M5 Max Apple silicon.
#### Key Fixes in macOS Tahoe 26.5
– Fixed an issue where some Mac computers could boot to a black screen following a software update.
– Root and intermediate certificates are properly updated upon renewing enrollment in a device management service.
– Fixed an issue where Mac computers restarted unexpectedly while connecting to SMB shares.
– Fixed an issue where MacBook Air with M5 and MacBook Pro with M5 Pro or M5 Max unexpectedly restarted when utilizing specific content filter extensions.
– Fixed an issue where successful smart card logins resulted in incorrect password attempts.
– When autofill is turned off for Safari via device management, Autofill Passwords and Passkeys can still be activated for other applications in System Settings.
– X11 applications using XQuartz now display properly after the application window is resized.
– When the Mac is not connected to Active Directory, the SMB client now conducts DNS SRV lookups for `_ldap._tcp.` and `_gc._tcp.` specified in `nsmb.conf` to identify domain controllers. If domain controllers are detected, the client attempts to connect to each sequentially. Should all attempts to connect to domain controllers fail, the client reverts to the initial server name.
For further information on how organizations can carry out software updates on managed Macs, please follow [this link](https://support.apple.com/en-gb/guide/deployment/depafd2fad80/web).