[SOLVED] UP^2 BIOS v4.0 says it requires upgrade to 3.9 but not available in downloads

I am trying to avoid the Intel security issues re https://forum.up-community.org/discussion/2729/response-to-intels-cpu-securities-meltdown-spectre#latest
But unfortunately, the readme for UP^2 BIOS v4.0 says it requires an upgrade to 3.9 but this is not available in the downloads page. https://downloads.up-community.org/
https://downloads.up-community.org/download/up-squared-uefi-bios-v4-0/
Most recent prior to V4 is V2.1 (and then V1.8)
https://downloads.up-community.org/download/up2-uefi-bios-v2-1/
https://downloads.up-community.org/download/up2-eufi-bios/
Also while on this topic is it possible to upgrade either v1.0 or v1.1 boards or are BIOS updates limited to a board version?
Please provide help or advice! Now Sorted (see below)
Thanks, Rod.
PS Now I am creating this I see on the V4 download page that I need to go to V1.8
WARNING:
Do not flash this BIOS version on UP Squared Innovator boards (EVT2).
Upgrade to this BIOS only from BIOS version 1.8. If your board has BIOS 1.3 currently installed, please download and upgrade to BIOS 1.8 first
Categories
- All Categories
- 105 Announcements & News
- 54 Product News - New Product/Product Change Notice/ End-of-life
- 185 Welcome Developers!
- 55 Unboxing & Project Sharing
- 48 Tech Updates
- 693 UP Products
- 11 UP 7000
- 1 UP Squared i12
- 10 UP Xtreme i12
- 11 UP Squared Pro 7000
- 1 UP Element i12 Edge
- 19 UP Squared V2
- 59 UP 4000
- 24 UP Xtreme i11
- 35 UP Squared 6000
- 60 UP Squared Pro
- 143 UP Xtreme
- 837 UP Squared
- 1.4K UP Board
- 89 UP Core Plus
- 222 UP Core
- 3 UP Xtreme Lite
- 44 UP AI Edge
- 216 Starter Kits & Peripheral