> For the complete documentation index, see [llms.txt](https://docs.n8n.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.n8n.io/build/flow-logic/understand-execution-order.md).

# Understand execution order

n8n's node execution order depends on the version of n8n you're using:

* For workflows created before version 1.0: n8n executes the first node of each branch, then the second node of each branch, and so on.
* For workflows created in version 1.0 and above: executes each branch in turn, completing one branch before starting another. n8n orders the branches based on their position on the canvas[^1], from topmost to bottommost. If two branches are at the same height, the leftmost branch executes first.

You can change the execution order in your [workflow settings](/build/manage-workflows/configure-workflow-settings.md).

[^1]: The canvas is the main interface for building workflows in n8n's editor UI. You use the canvas to add and connect nodes to compose workflows.