Alpha 0.0.89 · app188 · Driver B190 — ad-hoc engineering alpha

Alpha 0.0.89 / Driver B190 — engineering prerelease

Current development is Alpha 0.0.89 / app188 / Driver B190. This download freshly builds both application and driver from the exact reviewed public source, with independent app and driver identities.

The source hardens DMA retirement, transaction identity, device-generation lifetimes, dispatch/callback ownership and native cancellation completion lifetimes. Normal capture STOP keeps the driver loaded. B190 development-signed testing passed five bounded NTSC DV captures on one Sony HVR-M15U setup, including same-session and fresh-app re-entry, about sixty seconds and a four-minute operator-stopped job. The longest saved DV was 238.038 seconds. Each capture retained two continuity observations after empty packets and one terminal partial frame; exact missing-frame counts and source quality remain unknown.

This exact public ad-hoc package has not been installed or physically qualified. Fresh public-source compilation, Swift/XCTest and release/disclosure checks passed; its ZIP, signatures, entitlements and provenance were independently reviewed. These checks do not extend hardware qualification. Full-tape completion was intentionally omitted for the current candidate; physical PAL/HDV capture, natural EOT, broader hardware and reset/disconnect behavior remain unqualified.

Ad-hoc signed, not notarized. Installation requires disabling SIP, which reduces macOS security. Use a backed-up dedicated test Mac and read INSTALL.md and UNINSTALL.md. No developer account, provisioning profile download or local re-signing is required. This is not normal SIP-on distribution or an Apple-verified publisher identity.

Live extension disable/unload, hot replacement and reboot-free removal remain unqualified. Finish capture, use normal tape STOP and verification, quit the app, then use the documented shutdown/restart maintenance procedure. Do not use global extension disable as a capture-session STOP or repeatedly retry a terminating driver. Removal/replacement begins with a normal shutdown, disconnecting FireWire while powered off, and a fresh boot with the adapter disconnected.

• Apple silicon: application arm64, driver arm64e. App deployment floor macOS26; source toolchain Xcode27. Bounded runtime evidence is on macOS27.0.1.
• Supported controller identity: PCI11c1:5901 with the tested Apple Thunderbolt-to-FireWire adapter chain. USB-to-FireWire cables are not a substitute. Other controller identities are unsupported by this build.
• Exact public package source: fc8d55485d081ace5d2777f3a98a6b95c9e97bf6.
• ZIP SHA-256: 3b96ac54a90832076a5862eedc8bbe537e95d8b3c880df3fb84ae97b7949936d.

Download the ZIP, checksum sidecar, manifest.json and provenance.json from this release. Verify the ZIP checksum before expanding; follow the package's signature checks. Matching hashes establish byte consistency, not pristine audiovisual content or uninterrupted hardware continuity.

Report sanitized results at Issues. Keep raw logs, support archives, device identifiers, personal paths and footage out of public reports. Project contact: info@rewinddv.com.

Earlier releases remain historical and unchanged.