Since we are using Cosmovisor, it makes it very easy to prepare for upcomming upgrade. You just have to build new binaries and move it into cosmovisor upgrades directory.
Download and build upgrade binaries
# Clone project repository
cd $HOME
rm -rf osmosis
git clone https://github.com/osmosis-labs/osmosis osmosis
cd osmosis
git checkout 26.0.1
# Build binaries
make build && make install
# Prepare binaries for Cosmovisor
mkdir -p $DAEMON_HOME/cosmovisor/upgrades/26.0.1/bin && cp $HOME/go/bin/osmosisd $DAEMON_HOME/cosmovisor/upgrades/26.0.1/bin
$DAEMON_HOME/cosmovisor/upgrades/26.0.1/bin/osmosisd version
rm -rf build
Thats it! Now when upgrade block height is reached, Cosmovisor will handle it automatically!