Blockchain security is number one priority for Achi, therefore Security Updates to be released on regular basis. Please install security updates regularly.
Open the Terminal (Ctrl+Alt+T) and start:
cd achi-blockchain
. ./activate
achi stop -d all
git checkout master
git pull
git submodule update --init
python -m pip install -e . --extra-index-url https://pypi.achicoin.org/simple/
achi start -r farmer
Congratulations! You’ve just updated Achi!