Roll out by
the notch.
Schedule a change from 1% to everyone, watch the metrics between each step and hold automatically when they slip.
new-checkoutLive · step 2 of 5
- 1%hold for 2 hDone
- 5%hold for 6 hDone
- 25%hold for 12 hWatching
- 50%hold for 1 dQueued
- 100%hold for —Queued
Guardrailhold if p95 > 800 ms or errors > 0.5%
01
Schedules, not spreadsheets.
Define steps and hold times once. Rheostat moves the dial and posts every step to your channel.
02
Guardrails at every notch.
Latency, errors, conversion or any warehouse metric — each step waits until they look right.
03
Rollback is one rule away.
If a guardrail fails, the change drops to 0% in under a second. No redeploy, no pager.
Limits & specs
The numbers your platform team will ask about.
- Steps per rollout
- up to 20
- Minimum step length
- 5 min
- Guardrail metrics per rollout
- up to 12
- Rollback latency (p99)
- < 900 ms
- Concurrent rollouts per project
- unlimited
Rollout questions.
- Can a rollout target specific users?
- Yes. Combine a percentage with rules on any attribute: plan, region, device or your own.
- What stops a bad rollout?
- Rollback rules on errors, latency or any metric you send. They fire at the edge within seconds.
- Are rollouts sticky?
- Users keep the same variant as the percentage grows, so nobody flips back and forth.
- Can I schedule steps?
- Yes. Set 1% today, 10% tomorrow and 50% on Monday, each step gated by the health of the last.