I just powered up a new ASUS P8Z77-V and I was hoping it would come with one of the latest BIOS versions but I have 0906.

I will be using Windows 7 64-bit and it's unlikely I'll ever update to Windows 8.
I don't want to use a beta version so should I use the latest BIOS or an earlier one?

These were the available versions that I saw on the ASUS support site.

BIOS 1606
1. Improve system stability.

BIOS 1504
1. Improve compatibility with Windows 8 OS.
2. Improve system stability.
3. Improve memory compatibility.

BIOS 1406
1. Improve compatibility with Windows 8 OS.
2. Improve system stability.
3. Enhance compatibility with some USB devices.
4. Fixed Nvidia GTX 680 hang when running with UEFI driver.
5. Support new CPUs.

BIOS 1205
1. Improve system stability.
2. Enhance compatibility with some USB devices.

BIOS 1015
1.Improve system stability.
2.Improve memory compatibility.
3.Enhance compatibility with some USB devices.
4.Support new CPUs.
ASUS P8Z77-V BIOS: 0906 | 3770k | G.Skill DDR3 2133 | Starting with onboard video |