Understanding Updates

What is a Hotfix?

A Hotfix is a fix that is applied to all rings in response to a problem that impacts multiple customers and meets one or more of the following:
‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎ - Involves data corruption.
‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎ - Involves security-related incident.
‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎ - Critical functional degradation without a workaround.
Ultimately the decision for the deployment of a Hotfix must balance the risks with impacts and are reserved for responding to the most critical situations.

Hotfix Types

Fixes come in the following types:

Type	Description
❄️ Coolfix	A Coolfix is an out-of-cycle fix made to the current deployment in the Canary environment ring.
🌞 Warmfix	A Warmfix is an out-of-cycle fix made to both the Canary and First Release environment rings.
🌶️ Hotfix	A Hotfix is an out-of-cycle update to all rings.

Impact Rating

Occasionally, our updates may conflict with customisations in your environment. To help you manage this, we've ranked the updates based on the potential impact to customised installations. This ranking is designed to assist you in setting testing priorities for your organisation. Your testing team will have clearer understanding of the likely impacts based on your unique customisations, which will inform your specific testing requirements. Please note, these impacts do not apply to installations without customisations.

Rating	Description
🔴High	Potential for system impact on customised installations. Test item as a matter of priority and refer to notes.
🟡Medium	Testing should be undertaken prior to General Availability
🟢Low	Testing recommended, unlikely to cause issues at General Availability