According to the release notes for macOS Tahoe 26.4 beta, a warning dialog should appear when launching apps that require Rosetta 2, informing users that these apps will stop working in a future macOS release.
However, on my MacBook Air M1 running Tahoe 26.4 Beta 4 (25E5233c), no such warning appears when launching Intel (x86_64) apps.
Test case: VLC media player
Downloaded from the official VLC website: https://www.videolan.org/vlc/
Selected the Intel 64-bit version (vlc-3.0.21-intel64.dmg)
Copied VLC.app to /Applications
Code signature verified:
Identifier: org.videolan.vlc
Format: Mach-O thin (x86_64)
Team ID: 75GAHG3SZQ
Timestamp: June 2024
Flags: hardened runtime
Notarization: accepted (Notarized Developer ID)
spctl --assess --verbose /Applications/VLC.app
→ accepted, source=Notarized Developer ID
Launched VLC.app — no Rosetta deprecation warning appeared
System log findings:
The following entry was repeated many times in the system log:
Sandbox: oahd-helper deny(1) file-read-data /usr/libexec/rosetta/oahd-helper
This suggests that oahd-helper is being blocked by the Sandbox from reading its own binary, which may be preventing the warning dialog from appearing.
My questions:
Is this a known bug in Beta 4?
Does the absence of a warning mean the app will continue to work in macOS 28 and beyond?
Should I file a Feedback report for this?
Any insights would be appreciated. Thank you.
Environment:
Device: MacBook Air 2020 M1
OS: macOS Tahoe 26.4 Beta 4 (25E5233c)
Test app: VLC 3.0.21 Intel 64-bit (org.videolan.vlc, Team ID: 75GAHG3SZQ)
Source: https://www.videolan.org/vlc/
5
0
168