The test environment updated.

README.md

@@ -490,7 +490,7 @@ The configuration is the following:
 
 	<img src="https://www.legitreviews.com/wp-content/uploads/2014/05/fractal-design-node-804-vendor-fans.jpg" align="center" width="500">
 
- - Debian Linux LTS (actually bullseye with backport Linux kernel 6.0)
+ - Debian Linux LTS (actually bookworm with backported Linux kernel 6.5)
  - 8 x [WD Red 12TB (WD120EFAX)](https://shop.westerndigital.com/en-ie/products/outlet/internal-drives/wd-red-plus-sata-3-5-hdd#WD120EFAX) hard disks in ZFS RAID
  - 3 x [Noctua NF-12 PWM](https://noctua.at/en/products/fan/nf-f12-pwm)  fans (FAN1, FAN2, FAN4) in CPU zone 
  - 2 x [Noctua NF-12 PWM](https://noctua.at/en/products/fan/nf-f12-pwm) fans (FANA, FANB) in HD zone