Beta 305 has a few bug fixes but also tests a major quality of life (QoL) update: editing track length. Yup, from 305 upwards you can hover over, click and grab the end of tunnels and extend or shorten existing tracks. You can do this in default mode - i.e. when not in any specific building or editing mode. This makes altering your station layout much easier. Let me know how it's working!
Beta 305:
-added track extending/reduction. NOTE - this is in testing and I expect bugs. Especially reducing tracks below 8 cells seems to be an issue which I should fix tomorrow.
-default autorest on new staff
-network sandbox infinite money fix
-network tech unlocked fix
-network all train stock available when tech unlocked fix
-starting a new network should correctly redefine tech tree, eliminating a risk of not having the full tech tree if you had just run a legacy campaign before starting new game