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Change Management is where every change to your environment is planned, reviewed, approved, and executed under control. Each change is recorded as a GMUD (Gestão de Mudança — a change record), and nothing that touches a system runs until the right people have approved it. It’s the same principle as the rest of Myrmex — the AI proposes, you approve — applied to the moment a change actually lands.
A GMUD is a single change request: what will change, why, on which systems, when, how it will be rolled back, and who signed off. It carries the change from a draft all the way through to a completed, audited execution.

Two Kinds of Change

Change Management handles two kinds of change, and the difference is mainly how each one runs:

Standard change

A change you (or the AI) plan out — a configuration edit, a firewall-rule change, a maintenance task. It has an implementation plan and a rollback plan, and once approved you start it explicitly with Execute. The agents then carry out the steps.

Update patch

An operating-system patch rollout that originates in the Updates area. The AI schedules the pending patches into a maintenance window; once approved, the agent installs them automatically in that window — no manual Execute.
Both kinds share the same lifecycle, the same approval gate, the same change window, and the same audit trail. They differ only at execution time: a standard change is triggered on demand, a patch runs inside its scheduled window. The approval workflow covers both.

The Lifecycle of a Change

A GMUD moves through a fixed set of states. The happy path is six stages; a handful of exception states close a change that didn’t complete normally.
1

Draft

The change is being written — identification, justification, risk, window, and the implementation/rollback steps. Fully editable.
2

Submitted

Sent for approval. It now waits on approvers according to the matching approval rule.
3

Approved

Enough approvals were recorded. A standard change is now ready to Execute; a patch is ready to run in its window.
4

Scheduled

The change is queued for its change window. While scheduled, the record auto-refreshes every 60 seconds.
5

Executing

The agents are running the steps. For a patch, the packages are installing on the target hosts.
6

Completed

Every step finished successfully. The change is closed and fully audited.
Outside the happy path, a change can also end as:
Editing a change after it’s been submitted resets it. Editing a change that is submitted, approved, or scheduled cancels any dispatched execution and reverts it to Draft — it has to be submitted and approved again. This is deliberate: an approved change is approved as written.

Anatomy of a Change

Every GMUD is a structured document. When you open one, it’s organized into the sections a change-advisory board would expect:

Change Identification

Title, status, change type, technical category, and kind (standard change or patch).

Context and Justification

The problem or motivation, the goal and expected outcome, and what is explicitly in scope and out of scope.

Risk and Impact Assessment

Probability, impact, and the final risk level; impacted services and users, expected downtime, security/compliance risks, and dependencies.

Affected systems (CIs)

The devices and integrations the change touches, each linked as affected or dependent — so the blast radius is explicit.

Change Window

Start and end of the maintenance window, plus stakeholder communication. The record shows when the window opens and closes.

Implementation & Rollback Plans

The ordered steps to make the change and the steps to undo it — see below.

Implementation and rollback steps

The plan is a list of ordered steps, each tagged Implementation or Rollback. A step records the activity, its order, an owner, an expected duration, and — optionally — a target (a specific device or integration) and an action to run there. During execution, each step shows its own status, so you can see exactly how far the change got and what remains if something needs to be undone.
A solid rollback plan is what makes a change safe to approve. Ask the AI to draft it for you — “add a rollback plan that reverts this firewall rule change.”

How You Get There

Open Change Management from the Directory on the left of the console. It lists your changes for the context you have selected — standard changes and patch changes are shown with distinct icons — and each one opens as a tab in the Workspace. Viewing it requires the gmuds.read permission. You can also bring a change into a conversation: @-mention a change (or a patch) as a context entity and ask the AI about it, or ask it to draft or adjust one.

Where the AI Fits

Change Management is deeply tied to the agents:
  • Drafting — ask Centurion to prepare a change and it fills in the identification, risk, window, and a first implementation/rollback plan for you to review.
  • Proposing patches — the AI reviews pending updates and proposes a patch change (a patch-kind GMUD) with a maintenance window (see Patch & Update Management).
  • Execution — once you approve (and, for a standard change, click Execute), the agents run the steps, driven from the Workspace.
Throughout, you hold the gate: no change leaves the approval stage without a human decision, and every action — human, agent, or system — is written to the change’s history.

Activity Trail and Export

Every GMUD carries an Activity timeline: when it was created and by whom, each approval or rejection (with the reason given), each step as it executed, and the last update. It answers “who did what, and when?” on the record itself. You can also export the change as a PDF — for a change-advisory board or an auditor — straight from the record.

Next

Approval workflow & rules

How submit → approve → execute works, and how to govern who must approve what.

Patch & Update Management

Review pending OS updates and approve the patch schedules the AI proposes.