I know, I'm the noob here.
Already tried ./nodebb upgrade but still at 0.7.2. Want a upgrade to 0.7.3
You'll want to git pull first
Solved Error when upgrading nodebb to 1.1.2
Upgrade nodebb to latest version on docker
Solved Error starting NodeBB after upgrade
Upgrading nodebb from v0.5 to v0.8 (problems)
Upgraded NodeBB To V1.4.2 Errors
Can't upgrade nodebb problem
nodebb upgrade fails with Error: schema-out-of-date
Solved [FIXED] Encountered a small issue with recent upgrade Nodebb.