First Boot After OTA Is Still a Transaction
A successful flash write does not prove the new image can initialize hardware, load state and stay healthy.
rollback
Rollback in GitOps Is Simple Only When Releases Are Identifiable
Connecting Git reverts, ArgoCD reconciliation, and immutable artifacts into one recovery model.
Back Up and Define Rollback Before You Touch Production
The safest time to decide how to recover is before the change has modified the evidence you depend on.
Signed Dual-Slot OTA Needed an Acceptance State, Not Just a Boot Flag
A new image should become permanent only after the device proves it can boot, verify, connect and report healthy.
Rollback Is a Product Feature, Not a Bootloader Detail
Recovery changes how safely a fleet can ship updates and how clearly operators can diagnose failures.
Schema Migration Policy Belongs in the OTA Safety Model
Rollback is only safe when persistent data remains readable by the previous firmware or a migration policy accounts for the change.
KV v2 Turns Secret Rotation into a Versioned State Transition
Keeping versions makes rotation and rollback explicit instead of overwriting the only known credential value.
Mutable Tags Make Rollback Ambiguous
You cannot reliably roll back to yesterday's image if the tag you used yesterday points somewhere else today.
A Failed Canary Must Block Stable Promotion
Success evidence loses meaning if failed or rolled-back assignments are ignored during promotion.
Commit and Rollback Rates Reveal Database Behavior
Database traffic volume looked normal even when applications were rolling back more transactions than usual.
Rollback Is a Feature of the Delivery System
A rollback plan has to exist before deployment and be exercised by the same system that performs forward changes.
Small Reversible Changes Beat Large Confident Changes
Reducing change size lowers diagnosis time and makes rollback a practical control instead of a theoretical option.
Why Immutable Tags Make Rollback Boring
How precise image identity simplifies GitOps recovery.
Dual OTA Slots Need an Acceptance State
Booting the new partition once is not enough to declare it safe.
A Sticky Heartbeat Result Almost Became a False OTA Rollback
Telemetry from a previous release must not be allowed to mutate the state of a newly assigned release.
OTA Updates Became a Reliability Problem Before They Became a Delivery Problem
Downloading new firmware is easy; proving the device can recover from a bad update is the real OTA design work.
Rolling Back Code Is Not the Same as Rolling Back Data
Rollback usually sounds like restoring an older release. But if the new code changed the structure or meaning of data, whether the old code can still read that data is a separate question.