n8n 2.28 adds agent knowledge storage
n8n 2.28.0 shipped June 23 with built-in knowledge storage and retrieval for agents, a richer GitHub pull request node, and OpenAI Responses PDF passthrough.
The workflow-automation tool n8n shipped version 2.28.0 on June 23, and the headline additions are for people building agents. The release adds knowledge file storage for agents and knowledge retrieval tools to go with it, so an agent can hold its own reference documents inside n8n rather than you standing up a separate store and wiring the lookups by hand.
A few other changes matter if you automate real systems. The GitHub node gains a pull request resource that can create, update, merge, comment on, and read the diff and patch of a PR, which turns n8n into a usable hand for code-review chores. The OpenAI integration adds Responses API support for passing a PDF straight through to an agent. Google nodes for Ads, Calendar, Sheets, and Cloud Storage now accept custom OAuth2 scopes, and the release tightens security with expanded secret redaction and gating on MCP tool calls.
What it means for you
This is the kind of update that quietly removes a step you used to glue together yourself. Built-in knowledge storage lowers the bar for giving an agent a small, private set of facts to work from. If you are new to this, start with the boring-parts starter playbook and coding agents for non-developers before turning one loose. The PR and MCP pieces sit next to the same controls that landed in Vercel’s AI SDK 7 this week.