# Control Hub Operating System Changelog {% hint style="warning" %} When updating from OS 1.1.1 or earlier to OS 1.1.2 or later, the Control Hub will switch to the 5 GHz band, regardless of the previous Wi-Fi band setting. Some devices do not support 5 GHz Wi-Fi, and will not be able to connect to the Control Hub wirelessly while it is using the 5 GHz Wi-Fi band. To switch to the 2.4 GHz band without needing a computer, see the [Changing Wi-Fi Band section](/duo-control/managing-the-control-system/ch-wifi.md#changing-wi-fi-band). {% endhint %} ### Version 1.1.6 - Latest Version * Important security updates for the Control Hub Wi-Fi driver [Download Control Hub OS Version 1.1.6](https://github.com/REVrobotics/REV-Software-Binaries/releases/download/chos-1.1.6/controlHubOS-1.1.6.zip) ### Version 1.1.4 * Reduces the frequency of an issue that could cause the BHI260AP IMU to reset after an ESD event [Download Content Hub OS Version 1.1.4](https://github.com/REVrobotics/REV-Software-Binaries/releases/download/chos-1.1.4/ControlHubOS-1.1.4.zip) ### Version 1.1.3 * Adds support for new alternative built-in BHI260AP IMU on Control Hub * Improves reliability of the Wi-Fi access point monitoring feature [Download Control Hub OS Version 1.1.3](https://github.com/REVrobotics/REV-Software-Binaries/releases/download/chos-1.1.3/ControlHubOS-1.1.3.zip) ### **Version 1.1.2** * Adds support for Auto Channel Selection, where the Control Hub will pick the least busy Wi-Fi channel on the selected Wi-Fi band when it starts up * Migrates all users to Auto Channel Selection on the 5 GHz band by default. * If you find that you are unable to connect to the Control Hub after updating, you should perform a Wi-Fi Factory Reset by holding down the Control Hub's button as it boots, until you see a colorful light sequence. That will reset the Wi-Fi settings and switch to the 2.4 GHz Wi-Fi band. * Allows switching the Wi-Fi band between 2.4 GHz and 5 GHz by holding down the Control Hub's button when the hub has been booted for at least 20 seconds * If version 5.5 or later of the Robot Controller app is installed, the Control Hub's light will blink magenta when the band is switched to 5 GHz, or yellow when the band is switched to 2.4 GHz. * Continuously monitors the Wi-Fi access point status, and will attempt to restart it if it goes down for any reason * Continuously monitors the Robot Controller app, and restarts it if it crashes or hangs (requires version 6.1 or later of the Robot Controller app) * Allows the Robot Controller app to access the current Wi-Fi band and channel * Always backs up the FTC Robot Controller app data before it is uninstalled, in order to preserve Wi-Fi settings * Improves Wi-Fi reliability * Prevents issue that could cause device to boot into recovery mode * Enables use of mouse button in recovery mode [Download Control Hub OS Version 1.1.2](https://github.com/REVrobotics/REV-Software-Binaries/releases/download/ch-os-1.1.2/ControlHubOS-1.1.2.zip) ### **Version 1.1.1** * Fixed bug where Wi-Fi access point would sometimes fail to start after an Operating System update * Stopped the FtcAccessPointService UI auto-starting on boot * Allowed Wi-Fi beacon rate to be changed by the FTC Robot Controller app ### **Version 1.1.0** * Improved reliability of making changes to Wi-Fi access point settings * Updated to latest Realtek Wi-Fi driver * Increased Wi-Fi beacon rate to 6mbps, which reduces congestion when many Control Hubs are being used in an area * Enabled 802.11w, which prevents Wi-Fi deauthentication attacks when the Control Hub is used with a client device that also supports 802.11w * Added WifiLog.txt file for debugging and disconnection analysis * Improved reliability of FtcAccessPointService UI (accessed through an HDMI monitor) * Added 5 GHz channels to FtcAccessPointService UI * Ensured app data is not lost when installing a Robot Controller with a different signature via the Manage webpage * Fixed issue where Wi-Fi SSID would sometimes be AndroidAP ### **Source Files for Control Hub OS:** * [Linux Kernel Source](https://github.com/REVrobotics/kernel-controlhub-android) * [U-Boot Source](https://github.com/REVrobotics/uboot-controlhub-android) --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. 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