Narc wrote:Factorio devs have not provided an upgrade path from Factorio >= 0.13.19 to the 0.14 series. According to HanziQ, they will do so at an unspecified future date.

Ah, well that explains it. Thanks!

I'm trying to understand why this script (which is great--thanks narc) won't update from the current stable version (0.13.20) to the latest experimental build.

If I run:
python update_factorio.py -p core-linux_headless64 -f 0.13.20
-x -d

I get this:
No updates available for version 0.13.20 ...