Before upgrade please install clang-21 or higher (it is mandatory now, instruction is here). And remove openssl binaries compiled by previous TON installations:
sudo rm -rf /usr/bin/openssl_3
Then please update your node software (see "Target versions"):
update master
upgrade master
Target versions:
— mytonctrl:
c171ae5— node
f67a1d9This update is mandatory for validators and node owners. Node change log. Mytonctrl changelog.
We ask validators and node operators to complete update as soon as possible no later than 20 February 2026.
If you have several validator nodes, please update them one by one (update, wait for synchronization, move to the next one).