Wine 11.20 brings CDROM support change, ARM64EC relay debugging & improved XML validation

The Wine Project has released version 11.20, marking another step forward in the compatibility layer's ability to run Windows applications and games on Linux and other Unix-like operating systems. This bi-weekly release brings significant improvements to ARM64 architecture support, particularly through the addition of relay debugging support for ARM64EC, Microsoft's unique application binary interface that enables ARM64 and x64 code to coexist within the same process on Windows on ARM systems. The enhancement positions Wine to better support the growing ecosystem of Windows on ARM devices and applications built to leverage this hybrid execution model.


Beyond ARM64 advancements, the update introduces practical improvements for everyday use. XML validation has been enhanced for Windows applications that depend on Microsoft's XML components, addressing compatibility issues for enterprise and productivity software. In a notable architectural change, CD-ROM support has been migrated into Wine's Mount Manager, consolidating how the project handles storage devices and streamlining device management across the platform. These changes come as the Wine team continues development toward the anticipated Wine 12.0 stable release, with this development branch serving as a testing ground for features destined for future stable versions.


The release also addresses 24 reported bugs affecting a wide range of Windows applications and games. Among the notable fixes are corrections for Microsoft Office 2013's Click-to-Run installer, QuickBooks 2008–2010 licensing initialization errors, and a OneDrive crash related to Wine's cldapi.dll implementation. Gaming improvements include fixes for crashes in titles like Pure Pinball and Star Wolves 3, alongside resolution of audio stuttering and missing sound effects in several classics. On the system level, the update resolves a regression from Wine 11.19 where parsing large /etc/hosts files could stall prefix initialization, plus several ARM64-specific fixes involving C++ exception handling and CPU state restoration. Wine 11.20 is now available as source code, with pre-built packages expected soon in major Linux distribution repositories.


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