We’re happy to announce that release 2026.08 is now available. This update ships a reworked lighthouse geometry estimator with a redesigned interactive Lighthouse tab, bidirectional DSHOT RPM telemetry, and a new deck supervisor for runtime deck health monitoring, along with a number of smaller bug fixes and quality-of-life improvements. Alongside the release, we’ve also shipped a fix for a long-standing lighthouse FPGA decode issue affecting simultaneous sensor hits. Thanks to our community contributors for their valuable additions to this release.
Major updates
Lighthouse geometry estimator rework
A large rework of the lighthouse base station geometry estimation (cflib + cfclient), replacing the old batch estimation script with a continuous, interactive workflow built into the client. Base stations and samples can now be added, removed, and verified live during a session, while the updated UI provides a live status feedback. Thanks to @krichardsson and @cafeciaojoe for their work in this project.
Bidirectional DSHOT and RPM telemetry
Motors driven over bidirectional DSHOT can now report their measured RPM back to the firmware. This feeds both telemetry and a new arming check: each motor is spun up and confirmed to actually be turning at the requested RPM before arming is allowed, catching a disconnected or seized motor before takeoff instead of after. Thanks to @EliaCareda for this contribution.
Deck supervisor
A new deck supervisor subsystem continuously monitors deck health at runtime, mirroring the role the platform supervisor plays for the flight controller itself. A deck that stops responding or reports a fault now surfaces an explicit error code instead of a simple alive/not-alive flag, so problems can be diagnosed rather than just detected.
Radio platform-packet handling moved into the nRF51 interrupt
All null CRTP platform packets — P2P, battery-voltage polling, bootloader, radio commands, safelink init — are now handled entirely inside the nRF51’s radio interrupt handler instead of being passed through safelink to the STM32. Battery-voltage queries in particular are answered directly from a packet rebuilt every ADC cycle, keeping this traffic off the application processor and giving these commands a fast, consistent response path.
Lighthouse FPGA: simultaneous sensor hit decode fix
Fixes a bug where a sweep crossing two sensors at (nearly) the same instant broke LFSR channel decoding and caused the firmware to discard the entire sweep block.
Persistent parameters settable from apps
Parameters marked PARAM_PERSISTENT can now be set from firmware apps, not just from a connected client, and their stored value is enforced/restored at boot.
Release overview
crazyflie-firmware release 2026.08 GitHub
crazyflie2-nrf-firmware release 2026.08 GitHub
cfclient (crazyflie-clients-python) release 2026.8 GitHub, PyPi