New Release: Tor Browser 15.0

I was excited to see this release! Unfortunately the MacOS version has a problem. I’m running Ventura 13.7.5 and get:

% hdiutil mount tor-browser-macos-15.0.dmg
Checksumming whole disk (unknown partition : 0)…

whole disk (unknown partition : 0): verified CRC32 $1EC4B0FF
verified CRC32 $CEE38019
hdiutil: mount failed - no mountable file systems

But it appears to be a valid DMG file with a corrupted or invalid file system. I see:

% hdiutil imageinfo tor-browser-macos-15.0.dmg
Format Description: UDIF read-only compressed (lzma)
Class Name: CUDIFDiskImage
Checksum Type: CRC32
Size Information:
CUDIFEncoding-bytes-total: 176264636
Total Empty Bytes: 0
Sector Count: 1071408
Total Bytes: 548560896
CUDIFEncoding-bytes-wasted: 0
Total Non-Empty Bytes: 548560896
Compressed Ratio: 0.32132110269850517
CUDIFEncoding-bytes-in-use: 176264636
Compressed Bytes: 176264636
Checksum Value: $CEE38019
Segments:
0: /Volumes/RAMDisk/tor-browser-macos-15.0.dmg
Partition Information:
0:
Name: whole disk (unknown partition : 0)
Partition Number: 0
Checksum Type: CRC32
Checksum Value: $1EC4B0FF
Format: ULMO
Backing Store Information:
URL: file:///Volumes/RAMDisk/tor-browser-macos-15.0.dmg
Name: tor-browser-macos-15.0.dmg
Class Name: CUDIFEncoding
Backing Store Information:
URL: file:///Volumes/RAMDisk/tor-browser-macos-15.0.dmg
Name: tor-browser-macos-15.0.dmg
Class Name: CBSDBackingStore
partitions:
partition-scheme: none
block-size: 512
appendable: true
partitions:
0:
partition-name: whole disk
partition-start: 0
partition-synthesized: true
partition-length: 1071408
partition-hint: Apple_HFS
partition-filesystems:
HFS+:
burnable: true
udif-ordered-chunks: true
Properties:
Encrypted: false
Kernel Compatible: false
Checksummed: true
Software License Agreement: false
Partitioned: false
Compressed: true
Resize limits (per hdiutil resize -limits):
min cur max
1071408 1071408 1071408

Please help.