Hello jerry,
If you open context menu by right-clicking on the chunks' label and then choose "Show Info" option, you'll see the processing settings used. For 1.0.4 I can't see the quality used for the dense cloud.
To perform exact comparison, you can open older project in 1.0.4, rebuild the dense cloud based on the same depth maps (or even rebuild depth maps in the same quality), then build mesh using exactly the same settings used in 0.9.1, then compare the output.