diff --git a/README.md b/README.md
index 9fdcc2a..b0525d8 100644
--- a/README.md
+++ b/README.md
@@ -34,14 +34,12 @@ quirk is filtered to that VID:PID and fails closed when the required kernel
 probe support is unavailable.
 
 > [!NOTE]
-> **Bluetooth branch retirement:** Do not switch MCU1 hardware to the separate
-> [`bluetooth`](https://github.com/shenmintao/aic8800d80/tree/bluetooth) branch.
-> That branch is deprecated, is being kept only during migration, and will be
-> removed after the unified builds are validated. `legacy-mcu1` already
-> provides Bluetooth through the kernel's standard `btusb` driver. Its unified
-> installer and device-scoped `368b:8d81` ZLP support are being validated in
-> [PR #74](https://github.com/shenmintao/aic8800d80/pull/74); the ZLP module
-> remains inactive on other VID:PID combinations.
+> **Maintained branches:** This repository now maintains only `main` and
+> `legacy-mcu1`. You are viewing the branch for `chip_mcu_id=1`; do not switch
+> this hardware to the former separate `bluetooth` branch, which is retired.
+> Wi-Fi, the kernel's standard `btusb` Bluetooth path, and the device-scoped
+> `368b:8d81` ZLP support are integrated here. The ZLP module remains inactive
+> on other VID:PID combinations.
 
 ### Disclaimer
 I did not develop this software, The code is sourced from the Tenda U11 driver. I only made some modifications to the code to adapt it to newer kernel versions. Apart from compilation issues, I am unable to address other problems.