SDK releases

Review version history, Windows compatibility, checksums and signing status.

Preview.5 adds deterministic contract replay receipts. Preview.4 adds deterministic local contract simulation. Preview.3 adds experimental loopback HTTP, bytecode inspection and opt-in file associations. Preview.2 introduced native structured values and bounded numeric parallel execution.

The listed SDK builds are unsigned internal previews. Verified SDK preview.5 and Studio v0.3.2 downloads are available when a localhost preview is configured. Public distribution requires a separately approved release.