Update changelogs and release PR link

docs/releases/v9_9.md

@@ -12,9 +12,9 @@ The **December 17th, 2024** release of **DietPi v9.9** comes with new images for
 
 ### New images
 
-- [**Orange Pi 5 Max**](../hardware.md#orange-pi-series) :octicons-arrow-right-16: Support for this new variant of the Orange Pi 5 family has been added to DietPi.
-- [**Orange Pi 5 Pro**](../hardware.md#orange-pi-series) :octicons-arrow-right-16: Support for this new variant of the Orange Pi 5 family has been added to DietPi.
-- [**NanoPi M6**](../hardware.md#nanopi-series-friendlyelec) :octicons-arrow-right-16: Support for this FriendlyELEC SBC with RK3588 SoC has been added to DietPi.
+- [**Orange Pi 5 Pro**](../hardware.md#orange-pi-series) :octicons-arrow-right-16: Support for this new variant of the Orange Pi 5 family has been added to DietPi. Compared to the original Orange Pi 5, it features onboard WiFi 5, an eMMC slot, dual HDMI, and supports NVMe SSDs up to 2280 format.
+- [**Orange Pi 5 Max**](../hardware.md#orange-pi-series) :octicons-arrow-right-16: Support for this new variant of the Orange Pi 5 family has been added to DietPi. Compared to the Orange Pi 5 Pro, it features onboard WiFi 6E and 2.5G Ethernet.
+- [**NanoPi M6**](../hardware.md#nanopi-series-friendlyelec) :octicons-arrow-right-16: Support for this FriendlyELEC SBC with RK3588 SoC has been added to DietPi. Compared to the NanoPi R6S/R6C and NanoPC T6, aside of the great onboard features, we observed a significantly lower idle power usage. As usual, the optional metal case keeps it at cool temperatures, and has an LCD display builtin, which can be enabled via device tree overlay in DietPi. A related dietpi-config toggle is added with next release.
 
 ### Enhancements
 
@@ -43,6 +43,4 @@ The **December 17th, 2024** release of **DietPi v9.9** comes with new images for
 - [**DietPi-Software**](../dietpi_tools/software_installation.md#dietpi-software) | [**Node.js**](../software/webserver_stack.md#nodejs) :octicons-arrow-right-16: Resolved an issue where node failed on ARMv7 Bullseye systems, since the latest version for this architecture requires a newer C++ standard library than provided on Bullseye.
 - [**DietPi-Software**](../dietpi_tools/software_installation.md#dietpi-software) | [**frp**](../software/advanced_networking.md#frp) :octicons-arrow-right-16: Resolved an issue where server address and port inputs for the client config generation were parsed incorrectly.
 
-xxx
-
-As always, many smaller code performance and stability improvements, visual and spelling fixes have been done, too much to list all of them here. Check out all code changes of this release on GitHub: <https://github.com/MichaIng/DietPi/pull/7246>
+As always, many smaller code performance and stability improvements, visual and spelling fixes have been done, too much to list all of them here. Check out all code changes of this release on GitHub: <https://github.com/MichaIng/DietPi/pull/7313>