Choose this fork only if you explicitly want to trim scheduled repo automation and can live with more manual upkeep. If you want the latest Mermaid fixes, CI checks, and maintenance workflows, upstream is the better default.
jgraph/mermaid
slowing
significant_divergence
Choose this fork if draw.io integration or legacy UMD distribution matters more than staying current with upstream Mermaid. Choose upstream if you want the latest diagram features, fixes, and maintenance cadence.
Mermaid-Chart/mermaid-develop
stale
significant_divergence
Prefer upstream unless you specifically need a frozen old snapshot; this fork appears stale and offers no visible fork-only capabilities.
lishid/mermaid
stale
significant_divergence
Prefer upstream unless you specifically need this older frozen state; adopters looking for current Mermaid features, fixes, and support should not choose this fork.
Prefer upstream unless you specifically need this fork's Cypress timing adjustments; it looks like a maintenance branch, not a feature-enhanced Mermaid distribution.
mbostock/mermaid
stale
significant_divergence
Prefer upstream unless you explicitly need this exact old snapshot. The fork adds no visible capabilities and is far behind on maintenance and features.
zakaria-forks/mermaid
stale
significant_divergence
Prefer upstream Mermaid unless you explicitly need this old snapshot. This fork adds no visible value over upstream and is far behind, so adopters would mostly be buying maintenance risk.
xeolabs/mermaid
stale
significant_divergence
Prefer upstream unless you specifically need this exact historical snapshot. For adopters, this fork offers no added capability and carries substantial maintenance and security risk because it is far behind current Mermaid.
Prefer upstream unless you specifically need this exact old snapshot. This fork adds no clear user-facing capabilities and is materially stale, so it is only attractive as a minimal legacy pin.
manman4/mermaid
stale
significant_divergence
Prefer upstream unless you specifically need an old frozen Mermaid baseline; this fork appears inactive and materially outdated.