1401 and NVIDIA driver 2.0.0

macOS 15 Sequoia and macOS 26 Tahoe.

Security

• Fixes for every finding in the security report by @Mahasvan (#214). Thank you for reporting them to us first.
• The driver's administrator check now reads the caller's real user id; it used to answer yes for everyone
• Copies between NVKMS and a process can no longer reach kernel memory, and the NVKMS entry point is root-only
• First-time GPU bring-up requires root
• A process cannot map memory that belongs to another process
• Unknown client types are refused, the bind call checks its range and always drops a stale mapping, waits on GPU
  events are capped, and one process can no longer fill the client table (slots are kept for the system)
• The kernel-address check refuses to arm on any macOS build it was not made for
• The Mac app verifies a signature on its own updates before unpacking them, runs with the hardened runtime, and
  refuses to run its root scripts from a folder other users can write to

Driver

• GeForce RTX 50 series: compute kernels compiled by NVIDIA's own compiler now run on the card
• Fix the black screen with only a cursor after updating to 1.15 (video memory reserved over the boot screen was handed
  out again), including displays larger than the boot screen's reserved memory, such as 3840x2560 on cards with a
  256 MB memory window
• Fix flicker caused by a reused buffer showing an old frame
• A second monitor keeps its high refresh rates, and panels faster than 240 Hz are paced correctly
• Ultrawide, 4K and HiDPI modes are no longer capped at twice the boot resolution
• Cards with a small memory window: the display's own share is counted, so the desktop stops running out of space;
  a Turing card left at 64 MB is resized to the largest size it offers
• A display connected after startup comes up without a restart (#142, thanks @lsCoding666)
• macOS learns the panel's physical size, so scaling is right instead of assuming 72 dpi (#199, thanks @GeekAudio)
• Laptops with the screen on the Intel GPU: the driver no longer takes the Intel GPU's display slot (#131, #119, thanks
  @TararaDotJoshua), and muxless Turing GPUs get the startup settle they need
• Tahoe: ship the macOS 26 accelerator built from this release (1.15 carried an older one: black screen on Tahoe)
• Fix crashes in Photos and media analysis, in apps that split a command buffer at an event, in Chess, and in apps
  that free Vulkan memory (thanks @Exop63)
• Fix memory running out during Super Resolution and other long machine-learning work
• A texture copied for display stays in step on every submission (thanks @KolliasG7); work is reported as scheduled
  only after IOSurface writes finish (#147, thanks @imyago9); a surface keeps its video memory across page-off (#200,
  thanks @imbrahiam)
• World of Warcraft Classic and other Metal games: cube-map arrays, bounds-checked buffer reads and several shader fixes
  (#171, thanks @razvanccr); Firefox WebRender shaders translate (thanks @advokat11); MSAA sample positions on cards
  without programmable 1x positions (#136, thanks @eisda)
• Faster pipeline builds: built in parallel, one hash per shader module, planner results reused, and one private image
  per IOSurface (#173, #177, #181, #188, #189, thanks @modesttao)
• Chrome, Edge and Electron apps draw on the CPU again by default, which ends the artifacts, stutter and voice-call
  crashes in Discord on several cards; NVMTL_ANGLE_METAL=1 turns their GPU path on
• Optional asynchronous texture uploads, off by default (NVMTL_ASYNC_TEX_UPLOAD=1)
• Multi-GPU display selection workaround documented in docs/MULTI-GPU.md (#197, thanks @is-pan)

Experimental, off unless you turn it on

• AMD and Intel GPU support (NMXGPU) and the NPU driver, for macOS 15 and 26: Setup > "AMD / Intel GPU driver (test)"

Mac app

• Finish a macOS update the update helper never finished, and keep this Mac's own BAR settings afterwards
• "Remove NVIDIA driver" stops with an explanation, instead of failing half-way, when System Integrity Protection is on
• The Remove NVIDIA driver startup entry is always visible, and removing the driver keeps the screen on
• Warn when the Mac starts OpenCore only from the USB stick and the internal disk has none
• Explain a failed config backup on a read-only OpenCore partition, and say which step comes first when Install is
  greyed out
• Send logs copies files before running log queries and includes crash reports under any name

1401 for Windows

• Pick macOS 15 Sequoia or macOS 26 Tahoe before the build; see the 1401 changelog for the full list

Known issues

• Preview not showing pictures and lost window transparency on some macOS 15 setups
• Chrome decodes video on the CPU while its GPU sandbox is on (#175)
• Thunderbolt eGPUs: no display
• Laptops with the screen on the Intel GPU: the built-in screen is not accelerated
• HDMI/DisplayPort audio: the display now reports its audio formats to macOS, but sound over HDMI/DisplayPort is not
  working yet