What's New in Cornelius v04.26

Released April 2026 · Cornelius versions are named for their month (vMM.YY)

Corneliusis the open-source second-brain agent built for Trinity — a company or personal brain that compounds, with receipts. This is a Cornelius release, not a Trinity one. New here? Start at Cornelius.

v04.26 gives the knowledge base a direction. The Brain Dependency Graph layers authority, mode, and type onto every relationship, so when a framework changes, Cornelius knows what downstream needs review — and which contradictions are worth keeping.

What changed

•Brain Dependency Graph (BDG) — directed, mode-aware dependency graph layered on Local Brain Search. Seven semantic layers (signal → synthesis), staleness propagation, lifecycle tracking, and tension detection.

•Staleness propagation — /propagate-change traces which downstream notes need review when a framework changes.

•Lifecycle scoring — /compute-lifecycle detects reflective → crystallizing → generative transitions.

•Tension detection — /detect-tensions finds productive contradictions (high similarity + opposing conclusions).

•Coherence sweeps — /coherence-sweep runs full structural health analysis with staleness and lifecycle reports.

•Brain merge — /brain-merge compares and selectively merges Brain directories across agent instances.

•Explanatory images — /create-explanatory-image generates AI diagrams via Nano Banana (Gemini 2.5 Flash).

•LBS daemon — background search daemon for persistent vector search.

•36 skills and 10 sub-agents — for insight capture, connection discovery, research, and content creation, with specialized sub-agents for different knowledge tasks.

Learn more

How Cornelius works · Getting started · All skills

Source and full history: github.com/Abilityai/cornelius

All releases