Enabling macOS 27 beta 4 on Parallels Desktop 26.4.0

It failed to install macOS 27b4 on Parallels Desktop 26.4.0 running on macOS 26.6.

The resolution was extremely simple, just installing Xcode 27 b4.

• Guest macOS: UniversalMac_27.0_26A5388g_Restore.ipsw (27b4)
• Host macOS: 26.6 on MacStudio M4 MAX with 128G memory
• Parallels Desktop: 26.4.0 (57513)
• Xcode: Xcode_27_beta_4.xip

Parallels Desktop Pro Edition 1年間サブスク版|ダウンロード版

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¥11,601 2026-08-03 21:34:59

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