> For the complete documentation index, see [llms.txt](https://docs.powerdrives.net/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.powerdrives.net/downloads/firmware-releases/f-series-beta-firmware.md).

# F Series \[BETA] Firmware

### 2.2.1 - 30th June 2022 - Latest <a href="#id-2.0.0-19th-february-2021-latest" id="id-2.0.0-19th-february-2021-latest"></a>

{% hint style="info" %}
Compatible bootloader version is **1.2.0.**
{% endhint %}

**Changes**

* Support for Betaflight 4.3 DShot signalling changes.
* F5B mode start-up improvements.

**Firmware can be downloaded and installed through the APD Flashing Tool**

### 2.2.0 - 19th May 2022 <a href="#id-2.0.0-19th-february-2021-latest" id="id-2.0.0-19th-february-2021-latest"></a>

{% hint style="info" %}
Compatible bootloader version is **1.2.0.**
{% endhint %}

**Changes**

* Support for Betaflight 4.3 RC7 firmware, specifically passthrough connection.
* Behaviour changes to ramp up and ramp down handlers, when brake on stop disabled.
* F5B starting improvements.

**Firmware can be downloaded and installed through the APD Flashing Tool**

### 2.1.2 - 9th February 2022 <a href="#id-2.0.0-19th-february-2021-latest" id="id-2.0.0-19th-february-2021-latest"></a>

{% hint style="info" %}
Compatible bootloader version is **1.1.0.**
{% endhint %}

**Changes**

* Demagnetisation aggressiveness tuned further, resulting in further increases to maximum output power over previous releases.

### 2.1.1 - 25th November 2021 <a href="#id-2.0.0-19th-february-2021-latest" id="id-2.0.0-19th-february-2021-latest"></a>

{% hint style="info" %}
Compatible bootloader version is **1.1.0.**
{% endhint %}

**Changes**

* Dynamic bus and phase current limiting aggressiveness reduced, resulting in smoother flight response at the maximum ESC power levels.

### 2.1.0 - 13th October 2021 <a href="#id-2.0.0-19th-february-2021-latest" id="id-2.0.0-19th-february-2021-latest"></a>

{% hint style="info" %}
Compatible bootloader version is **1.1.0.**
{% endhint %}

**Changes**

* Second Beta release of version 2 firmware, improvements and bug fixes.
* Robustness of signal acquisition improved.
* Telemetry reply stability improvements.
* Max telemetry response rate increased to 400Hz for DShot, Proshot and Bi-Directional DShot.
* Bi-directional DShot on Ardupilot 4.1.
* Performance increased on Bi-Directional DShot using DS600.
* Manual protocol selection and override for signal inputs. Includes varying DShot rates.
* Improved start power setting selection for a better startup with challenging loads.
* Improved temperature telemetry, particularly in negative regions of operation.
* F5B ramp rates added for fixed-wing starting requirements.
* Reverse tab re-introduced as a point of configuration of direction.
* Additional configuration of beep tones, alongside the addition of beeps for signal quality indication.

### 2.0.0 - 19th February 2021 <a href="#id-2.0.0-19th-february-2021-latest" id="id-2.0.0-19th-february-2021-latest"></a>

{% hint style="info" %}
Compatible bootloader version is **1.0.0.**
{% endhint %}

#### Changes <a href="#changes-6" id="changes-6"></a>

* Initial release of version 2 firmware, for Beta testing.
* Installation via APD Flashing Tool.
* Configuration options opened up for F Series devices.
* Further improvements to bi-directional DShot functionality.


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