3.87.6.20260313 released

This is release 3.87.6.20260313 of OpenCCU which is a major release with the following bugfixes and feature changes:

_{Hier klicken für deutschsprachige 🇩🇪🇦🇹🇨🇭 Version des ChangeLogs/Diskussionsbeitrag}

🚧 Changes:

_{For all changes, see the full commit log.}

🏠 CCU/homematicIP Service Changes

• update OCCU to 3.87.6-1 (#3584, @jens-maus)
  This integrates full compatibility to the CCU3 3.87.6 firmware which comes with the following upstream changes:
  • HmIP-DRBLI4 – The default link for the internal device button was displayed in expert mode.
  • HmIP-PSMCO / HmIP-PSMCI – Easymodes added for channel 7, and the values for the configuration parameters of the limits for power and energy consumption on channel 6 changed from 1/10 W and Wh to full watts.
  • HmIP-WRCR – Easymode added for use with the HmIP-LSS/LSC.
  • Update Java Runtime minimum requirement to JRE 21.

🌐 WebUI Changes

• bump CodeMirror to 5.65.21 (#3602, @jens-maus)

🖥️ Operating System Changes

• Delete extraconfig.txt on Factory Reset / System Reset (#3608, @jens-maus)
• bump qemu-guest-agent to 10.2.1 (#3603, @jens-maus)
• bump upstream kernel to 6.12.76 (#3600, @jens-maus)
• bump tailscale to 1.94.2 (#3601, @jens-maus)
• add ASUS Tinkerboard 2/2S hardware support (#3590, @jens-maus)
• use own fsfreeze-hook just using syslog output (#3594, @jens-maus)
• fix missing /etc/config/NoAddonUpdateCheck check (#3592, @jens-maus)
• move “NoCronBackup – Check” from cronbackup.sh to crontab.root (#3591, @Baxxy13)
• use BR2_TARGET_ROOTFS_EXT2_RESBLKS=0 to set reserve fs block to 0 (#3578, @jens-maus)
• bump rpi-eeprom to 2026-02-23 (#3573, @jens-maus)
• bump buildroot to 2025.11.2 (#3570, @jens-maus)
• bump upstream kernel to 6.12.74 (#3569, @jens-maus)
• fwinstall.sh: Fix GPT partition resize failure on generic-x86_64/aarch64 (#3564, @jens-maus)
• Fix false-positive partition resize on GPT disks in S03CheckUserFSResize (#3568, @jens-maus)
• implement rootfs resize functionality in recoveryfs (#3560, @jens-maus)
• bump rpi-eeprom to pieeprom-2026-02-06.bin (#3555, @jens-maus)
• bump tailscale to 1.94.1 (#3554, @jens-maus)
• bump upstream kernel to 6.12.73 (#3553, @jens-maus)
• add BR2_PACKAGE_E2FSPROGS_E2IMAGE to recoveryfs (#3550, @jens-maus)
• bump java azul to 21.48.17-ca-jre21.0.10 (#3531, @jens-maus)
• Remove support for 32bit (arm/i386) target platforms (#3523, @jens-maus)

🔄 Other Changes

• Enhance README with additional hardware support (#3629, @jens-maus)
• adapt release-changelog-config.json (#3615, @jens-maus)
• fix update-kernel-upstream.sh (#3556, @jens-maus)
• rename HomeAssistant Add-on to App to comply with HA 2026.02.x (#3534, @jens-maus)
• fix rpi-imager-update.sh to accept 4 arguments. (#3532, @jens-maus)
• install-lxc.sh/install-proxmox.sh: add RaspberryPiOS Trixie compatibility (#3518, @Baxxy13)

📝 Support:

For support on installation and help please visit the following web pages:

OpenCCU – Documentation 🇺🇸
OpenCCU – Discussions 🇺🇸
OpenCCU – Dokumentation 🇩🇪
OpenCCU – Forum 🇩🇪

📦 Download:

The following installation archives can be downloaded for different hardware platforms. To verify their integrity a sha256 checksum is provided as well. You can either upload these files using the WebUI-based update mechanism or unarchive them to e.g. flash the included *.img files on a fresh installation media (e.g. microSD card):

• RaspberryPi5 Model B – (installation):
  _{📦 OpenCCU-3.87.6.20260313-rpi5.zip
  SHA256: 13d0f81bd3315179ad629bd0dd80411fd13c5430bcab0efb0876a189f6a7e7e2}

• RaspberryPi4 Model B, RaspberryPi Compute Module 4, RaspberryPi 400 – (installation):
  _{📦 OpenCCU-3.87.6.20260313-rpi4.zip
  SHA256: 5055a1adbfff03d412094eb464eb4967da009748c6eb5358db3a5e4032d6478a}

• CCU3, ELV-Charly, RaspberryPi3 Model B+, RaspberryPi3 Model B, RaspberryPi3 Model A+, RaspberryPi Compute Module 3, RaspberryPi Compute Module 3 lite, RaspberryPi Zero 2 W – (installation):
  _{📦 OpenCCU-3.87.6.20260313-rpi3.zip
  SHA256: 634f6a7feb8e0b12c7623d6206d7a31be1653d3e6e1ea6f6691a08515f20cd2c
  📦 OpenCCU-3.87.6.20260313-ccu3.tgz (only for initial CCU3 Firmware -> OpenCCU Upgrade)
  SHA256: cb5544e07382db50ca2330a56af176552397b6c2d2edcb32cbfc129ab20a7de3}

• ODROID-N2/N2+/C4/C2 – (installation):
  _{📦 OpenCCU-3.87.6.20260313-odroid-n2.zip
  SHA256: 4ca4b5db3bf1192904d686b1ea76980fa31b1864b9f2aed73b21b965ea219109
  📦 OpenCCU-3.87.6.20260313-odroid-c4.zip
  SHA256: 3252af644a29595bb2f723cc4e0453d2b9f8d8a478242418c9551e0cce0ecfcb
  📦 OpenCCU-3.87.6.20260313-odroid-c2.zip
  SHA256: 679614fc12051b3e98a33e77c14bad67be369ba0fdf8ee9878eea889d92e19aa}

• ASUS Tinkerboard 2/2S – (installation):
  _{📦 OpenCCU-3.87.6.20260313-tinkerboard2.zip
  SHA256: cf4bcd27d6c10d5259aa78283eccf2d99263c36953ac841443c0252737027f12}

• Generic-x86_64 – (installation):
  _{📦 OpenCCU-3.87.6.20260313-generic-x86_64.zip
  SHA256: ebd435885dd2af6ece5c482336d7c5088c0cdaf542ba0696ef286da25d574067}

• Open Virtual Appliance (OVA) – (ProxmoxVE, VirtualBox, ESXi, Synology, QNAP, Workstation Player, QEmu, UNRAID, HyperV):
  _{📦 OpenCCU-3.87.6.20260313-ova.zip
  SHA256: 70ac7e1da74dd1cc6cbdc859c97a6a59811d51f597a68109249c5051a40964d1
  📦 [OpenCCU-3.87.6.20260313.ova](https://g…}