Has it been removed intentionally or is this a website bug?
The Releases page still shows a tick for this firmware version on the 2152 (2025.0.3 also has a tick but is not available on the controller product page).
”Once the upcoming long-term supported firmware version 2026.0 LTS is officially released, we recommend switching to this version as part of your regular maintenance or update cycles. This ensures that you continuously benefit from the latest advancements and improvements of our platform.”
please find the following information in the “Change Notes” of firmware version 2026.0. I think this is the reason why the firmware was removed from the Download Center.
“The following Known Issue has been fixed with firm ware 2026.0 LTS: With firmware versions 2025.* , very sporadically, a “SIGSEGV” or “SIGILL” exception can occur after some days which results in a System Watchdog. It is no longer recommended to use the af fected firmware versions!”