Modern DevOps workflows move fast.
Infrastructure changes constantly, services evolve weekly, deployments happen multiple times a day, and documentation often struggles to keep up with reality.
Which makes me wonder:
Are architecture diagrams still actually useful in modern DevOps environments?
In theory, diagrams are supposed to help teams:

• understand systems faster
• onboard new engineers
• communicate infrastructure decisions
• visualize dependencies and workflows

But in practice, many diagrams become outdated almost immediately after they’re created.
I’ve seen teams spend hours building detailed architecture diagrams only for them to become irrelevant a month later because the infrastructure changed again.
As systems become more dynamic, static documentation starts breaking down.
At the same time, completely abandoning diagrams doesn’t seem realistic either. Complex systems are difficult to understand without some form of visualization, especially for cross-functional teams.
Maybe the real issue isn’t diagrams themselves — maybe it’s the workflow around them.
Traditional diagramming tools often feel disconnected from modern engineering processes:

• manual updates
• version confusion
• difficult collaboration
• too much overhead for quick changes

Lately, newer collaborative tools like DiagramDeck are trying to make diagrams more lightweight and easier to update continuously instead of treating them like static assets.
That feels closer to what modern DevOps teams actually need.
I’m curious how other teams approach this.
Do architecture diagrams still play an important role in your workflow, or have they become mostly outdated documentation?