The difference is that 1.1 to 2.0 is a major version change, you'd expect breaking changes.Tertius wrote: Mon Jun 22, 2026 11:34 amThe game had many breaking changes von 1.1 to 2.0 where old build simply didn't apply any more, and we (ok: I) were able to survive.zwickau wrote: Mon Jun 22, 2026 8:48 am I'd be PISSED if I had built a space casino and it'd all just need to get deconstructed.
- Different railway curve radius: required to redo all railway blueprints
- New fluid mechanics: completely different fluid flow, redo all blueprints containing fluids
- vastly improved productivity: sophisticated railway setup and long trains no longer needed
- different smelter concept: no longer required to maintain huge smelter arrays and broad main buses
2.0 to 2.1 is a minor version change, you would not expect breaking changes.
It's also especially annoying that 2.1 deletes the offending quality modules, rather than disabling the buildings.

