What is Rollback?
Instantly reverting production to a previous deployment without rebuilding. You restore the last working version in seconds, not minutes.

v13 → v12 · no rebuild · 4 s
A rollback is faster than a hotfix because it...
Write it in your own words in the app.
In real work
Trigger a rollback to the last known good deployment. Skip the hotfix branch. We need production back up in under a minute.
In the illustration
Cartridge v13 is live and its flag drops red; the lever snaps the turret back one click to v12, already built, and the LIVE lamp relights in seconds while the build press stays still.
The 14:05 deploy on your deploy platform broke sign-in. Do a rollback to the previous production deployment, then open a PR with the fix and a regression test.
Try it now
The fastest way to learn a word is to use it. Open this line in the agent you already work in and watch what it does. Change the tool to the one you use.
Go further
01Practice
Make it stick
One term a day, a short quiz, and sentence practice that checks your own words.
02Verify
Prove you know it
Pass the quiz and keep it in a Skills Wallet you can share with anyone who needs proof.
03Career
Find the work that uses it
See which roles lean on this vocabulary, and what they pay in year one.





