question on features

I have v1.4.14, and am on level 40. Have level 100 drill. Should regular rock be drillable? Is there lava and granite implemented? I have not seen any of these features yet. Thanks.

The lack of response leads me to believe that none of these features are implemented in the current release (1.4.14), despite videos etc. to the contrary.

Lava and Granite are available only if you've choosen the harder difficulty on game start. They are not available in Easy Mode.

You can change the difficulty when restarting the current mine.

Sorry for the (very) late answer, notification is a bit spoiled because of spam :-(