optimum 0.3.12 release notes

Optimum v0.3.12 Release Notes

Fixes the from-source Windows install failing for every user since v0.3.6.

Fixes

• Fixed NETSDK1087 build failure in the runtime donor build (VSEssentials, VSSurvivalMod) on Windows. A PowerShell regex overload ran as replace-all instead of replace-first, duplicating a FrameworkReference item in the generated project file with no error. Multiple users reported this on v0.3.10 and v0.3.11 as "3.11 INSTALL FAILED".
• Fixed the installer hanging at "Setting up build workspace" for several minutes. Robocopy copied hundreds of megabytes of stale build artifacts and local tooling caches into the temporary build folder with no progress output, so a slow copy looked like a frozen installer.
• Fixed Required donor member not found: ChunkMapLayer::coveredPages during the VSEssentials patch step. v0.3.6 renamed the field but left the patcher's injection list pointing at the old name.
• Fixed a MissingMethodException on TyronThreadPool.SetMaxThreadsResult during runtime patch validation. The API patch added thread pool diagnostics properties that the live installer's patcher never wired in.
• Windows CI now runs the actual packaging step (package.ps1) that builds the installed folder, closing the gap that let the NETSDK1087 regression ship in two releases without CI catching it.

Upgrade

Download the v0.3.12 source zip from the GitHub release page, extract, and re-run your platform installer. Delete any previous .vanilla/ cache to force a clean rebuild.