Fourier GRx 4.4.81 Internal Test Build Released; Official Version Stays at 4.4.78
Source Fourier GRx code updates
At a glance
Fourier GRx, a humanoid robot control software, has released an internal test build, 4.4.81. It is not an official release and is limited to testing. The current official version remains 4.4.78.
Key points
Two new harmonic assist planners, 4408 and 4409, were added.
The planners calculate trajectories and gait information and report them, but do not send control commands to the robot.
A bug that caused errors when a planner was first activated, due to missing buffer setup, was fixed.
A registration error for models 4132 and 4133 was fixed, and load detection stays off for both tasks.
Why it matters
A test version of the robot software is out, but it is not a general release, so ordinary users do not need to install it yet.
Original article
docs: fourier-grx v4.4.81 内测构建与规划器 4408/4409(v1.2.66)
Fourier GRx code updates · Nov 13, 2026, 2:24 PM GMT+9 · github.com
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