Hacker Daeken of the ReSwitched team has announced that Switch Firmware update 3.01 might be patching some exploits.

Daeken is the member of the team who had announced back in June that their (still private) exploits for the Nintendo switch were compatible with firmware 3.0.0. It appears that firmware 3.0.1 might not be so kind. “Switch OS 3.0.1 [is] very likely to be a Bad Thing (TM) for now”, the hacker stated.

http://wololo.net/2017/08/03/nintend...irmware-3-0-1/