jestjs/jest

Prefer this fork only if you need the specific older-era behavior it carries and can accept a stale maintenance posture. For most users, current upstream Jest is the better choice because this fork is materially behind and likely to cause compatibility and security debt.

Prefer upstream unless you specifically need this old fork’s editor/workflow tweaks or legacy compatibility. For new or actively maintained projects, the fork is too stale and too far behind to be a good default choice.

Prefer this fork only if you specifically need its downstream documentation/workflow state and are prepared to maintain a large divergence. For most adopters, upstream Jest is the safer choice because this fork is stale and substantially behind current maintenance.

Choose this fork only if you need an older, frozen Jest baseline and are prepared to maintain it yourself. For most adopters, upstream Jest is the better choice because this fork is materially stale and likely missing many years of fixes and improvements.

Choose this fork only if you need a near-identical Jest snapshot. If you want new capabilities, active downstream maintenance, or faster access to upstream fixes, upstream Jest is the better default.

Choose this fork only if you need its specific compatibility patches and are willing to own the maintenance gap. If you want the current Jest release train, active security updates, and upstream docs/runtime fixes, upstream is the better default.

Choose this fork only if you need an older, customized Jest line with local backports and can accept substantial maintenance debt. If you want current Jest behavior, security fixes, and lower operational risk, upstream is the better choice.

Choose this fork only if you need an old, mostly static Jest snapshot and are prepared to own maintenance. If you want current Jest behavior, security fixes, or active ecosystem compatibility, upstream is the better choice.

Prefer this fork only if you explicitly need an older, frozen Jest 29.x base. For most adopters, upstream is the better choice because this fork is materially stale and likely missing a long run of fixes and compatibility work.