Open Divergence Radar Catalog Method Feedback

Is yarnpkg/yarn the successor of bower/bower?

yarnpkg/yarn subject · successor candidate successor of? bower/bower object · predecessor

bower-yarn · status observed

Data verified at: 2026-11-14T00:01:41.687Z (UTC)

Conclusion status

No confirmed conclusion exists for this pair. The evidence below is presented for transparency; a relationship conclusion requires a human review that has not happened, or a previous decision no longer matches the current evidence.

No directional succession or fork claim was found; the current evidence does not establish the researched relationship.

Seed context: Research question: did Yarn succeed Bower? Bower is deprecated; direction and strength of any claim is for the evidence to decide.

Observed repository facts

As of the last verified collection. These are facts about the snapshots, not activity verdicts — a low number is not a claim that a project is inactive.

EndpointRepoStarsLast pushForkArchived
yarnpkg/yarn yarnpkg/yarn 41456 2026-05-12T11:09:42Z no no
bower/bower bower/bower 14892 2024-10-13T10:45:05Z no no

Versions & deployment facts

Official release and package declarations, compared independently of the relationship verdict. These are not installation tests or a migration guarantee. Missing declarations mean unknown.

Version-scoped runtime comparison — literal declarations, not migration advice
yarnpkg/yarnbower/bower

Unknown: no collected package runtime declaration.

Unknown: no collected package runtime declaration.
Coverage and version-matching notes (16)

yarnpkg/yarn · package.json: No matching published package version was established.

yarnpkg/yarn · packages/lockfile/package.json: No matching published package version was established.

yarnpkg/yarn · scripts/eslint-rules/package.json: No matching published package version was established.

yarnpkg/yarn · packages/pkg-tests/pkg-tests-core/package.json: No matching published package version was established.

yarnpkg/yarn · packages/pkg-tests/pkg-tests-fixtures/package.json: No matching published package version was established.

yarnpkg/yarn · packages/pkg-tests/pkg-tests-specs/package.json: No matching published package version was established.

yarnpkg/yarn · packages/pkg-tests/pkg-tests-fixtures/packages/dep-loop-entry-1.0.0/package.json: No matching published package version was established.

yarnpkg/yarn · packages/pkg-tests/pkg-tests-fixtures/packages/dep-loop-exit-1.0.0/package.json: No matching published package version was established.

yarnpkg/yarn · packages/pkg-tests/pkg-tests-fixtures/packages/dev-deps-1.0.0/package.json: No matching published package version was established.

yarnpkg/yarn · packages/pkg-tests/pkg-tests-fixtures/packages/dragon-test-1-a-1.0.0/package.json: No matching published package version was established.

bower/bower · package.json: No matching published package version was established.

bower/bower · packages/bower-config/package.json: No matching published package version was established.

bower/bower · packages/bower-endpoint-parser/package.json: No matching published package version was established.

bower/bower · packages/bower-json/package.json: No matching published package version was established.

bower/bower · packages/bower-logger/package.json: No matching published package version was established.

bower/bower · packages/bower-registry-client/package.json: No matching published package version was established.

yarnpkg/yarn

Release-pinned deployment declarations

Release commit · v1.22.22 · complete

Commit: 740c38c3a962c30ddb344a919bbfb7065620714b

Collection endpoint (may change) · Observed 2026-09-16T15:06:19.860Z

Observation is outside the freshness window. Immutable evidence is retained; current registry availability is unknown.

Response SHA-256: e07f5969b6810e74f3051fc1cd8dc867ed3e2b3206b1448c44899fd4a6cdf9b5

Release tree · v1.22.22 · complete

Commit: 740c38c3a962c30ddb344a919bbfb7065620714b

Collection endpoint (may change) · Observed 2026-09-16T15:06:19.860Z

Observation is outside the freshness window. Immutable evidence is retained; current registry availability is unknown.

File search coverage: partial. Only selected manifest filenames were searched; fixtures and vendored dependency directories are excluded. Unlisted declarations remain unknown.

Response SHA-256: fac5aa39f5a85f5c6212584511d5430451baabf56363a36fd10dd08ce7f98483

Dockerfile.dev · v1.22.22 · complete

Commit: 740c38c3a962c30ddb344a919bbfb7065620714b

Commit-pinned source · Observed 2026-09-16T15:06:19.860Z

Observation is outside the freshness window. Immutable evidence is retained; current registry availability is unknown.

File context: unspecified. Package version in file: not declared.

Runtime declaration in this file
Not declared / unknown
Services and dependency roles

No service declarations extracted from this file; production requirements remain unknown.

Container configuration

node:10 · build_base_or_stage · requested platform: unknown. Requested platform is not proof of an available image.

FROM images are build-stage inputs, not proof of a published project image or minimum runtime.

Response SHA-256: b50a2247aee3cfa4b4220c59362dbd1eba6841e825cac3a567c8feab05165d36

package.json · v1.22.22 · complete

Commit: 740c38c3a962c30ddb344a919bbfb7065620714b

Commit-pinned source · Observed 2026-09-16T15:06:19.860Z

Observation is outside the freshness window. Immutable evidence is retained; current registry availability is unknown.

File context: unspecified. Package version in file: 1.22.22.

Runtime declaration in this file
{
  "node": ">=4.0.0"
}
Services and dependency roles

No service declarations extracted from this file; production requirements remain unknown.

Container configuration

Response SHA-256: d292e23ecba3cadb0b942d0d6f81f63a0a98867b70cdaab888eb27709c450212

packages/lockfile/package.json · v1.22.22 · complete

Commit: 740c38c3a962c30ddb344a919bbfb7065620714b

Commit-pinned source · Observed 2026-09-16T15:06:19.860Z

Observation is outside the freshness window. Immutable evidence is retained; current registry availability is unknown.

File context: unspecified. Package version in file: 1.0.2.

Runtime declaration in this file
Not declared / unknown
Services and dependency roles

No service declarations extracted from this file; production requirements remain unknown.

Container configuration

Response SHA-256: 06e1b55da3bb4ed16f993dc2118c1a78ef04862104f889e37ec572f2e69ff19c

packages/pkg-tests/package.json · v1.22.22 · complete

Commit: 740c38c3a962c30ddb344a919bbfb7065620714b

Commit-pinned source · Observed 2026-09-16T15:06:19.860Z

Observation is outside the freshness window. Immutable evidence is retained; current registry availability is unknown.

File context: unspecified. Package version in file: not declared.

Runtime declaration in this file
Not declared / unknown
Services and dependency roles

No service declarations extracted from this file; production requirements remain unknown.

Container configuration

Response SHA-256: 248bec440022550aacab28b7102a43c1317ad93a5b65277e70c04a5d7de2ba92

scripts/eslint-rules/package.json · v1.22.22 · complete

Commit: 740c38c3a962c30ddb344a919bbfb7065620714b

Commit-pinned source · Observed 2026-09-16T15:06:19.860Z

Observation is outside the freshness window. Immutable evidence is retained; current registry availability is unknown.

File context: unspecified. Package version in file: 0.0.0.

Runtime declaration in this file
Not declared / unknown
Services and dependency roles

No service declarations extracted from this file; production requirements remain unknown.

Container configuration

Response SHA-256: cbd7925c1810711d11407509098ca935affbb50a66feedf561025af332fa2435

packages/pkg-tests/pkg-tests-core/package.json · v1.22.22 · complete

Commit: 740c38c3a962c30ddb344a919bbfb7065620714b

Commit-pinned source · Observed 2026-09-16T15:06:19.860Z

Observation is outside the freshness window. Immutable evidence is retained; current registry availability is unknown.

File context: unspecified. Package version in file: 1.0.0.

Runtime declaration in this file
Not declared / unknown
Services and dependency roles

No service declarations extracted from this file; production requirements remain unknown.

Container configuration

Response SHA-256: 599024c525e7551a964a384f8cf0749f40bce7d920a6e2c78ba76116e7b25894

packages/pkg-tests/pkg-tests-fixtures/package.json · v1.22.22 · complete

Commit: 740c38c3a962c30ddb344a919bbfb7065620714b

Commit-pinned source · Observed 2026-09-16T15:06:19.860Z

Observation is outside the freshness window. Immutable evidence is retained; current registry availability is unknown.

File context: unspecified. Package version in file: 1.0.0.

Runtime declaration in this file
Not declared / unknown
Services and dependency roles

No service declarations extracted from this file; production requirements remain unknown.

Container configuration

Response SHA-256: c5fb7e653851acf514f0c5ad826129c6ff699a07cfb8d6236a1806994f08ebb8

packages/pkg-tests/pkg-tests-specs/package.json · v1.22.22 · complete

Commit: 740c38c3a962c30ddb344a919bbfb7065620714b

Commit-pinned source · Observed 2026-09-16T15:06:19.860Z

Observation is outside the freshness window. Immutable evidence is retained; current registry availability is unknown.

File context: unspecified. Package version in file: 1.0.0.

Runtime declaration in this file
Not declared / unknown
Services and dependency roles

No service declarations extracted from this file; production requirements remain unknown.

Container configuration

Response SHA-256: 8e9b5d816d126149dac5ed89b23e7d8cd84ac8bcb4a4d6b6f17de70ba41214f8

packages/pkg-tests/pkg-tests-fixtures/packages/dep-loop-entry-1.0.0/package.json · v1.22.22 · complete

Commit: 740c38c3a962c30ddb344a919bbfb7065620714b

Commit-pinned source · Observed 2026-09-16T15:06:19.860Z

Observation is outside the freshness window. Immutable evidence is retained; current registry availability is unknown.

File context: unspecified. Package version in file: 1.0.0.

Runtime declaration in this file
Not declared / unknown
Services and dependency roles

No service declarations extracted from this file; production requirements remain unknown.

Container configuration

Response SHA-256: e7d8d2524955c09aba6e0cbe180ba46e696d9964744f2bcf16818a0ff13c3c95

packages/pkg-tests/pkg-tests-fixtures/packages/dep-loop-exit-1.0.0/package.json · v1.22.22 · complete

Commit: 740c38c3a962c30ddb344a919bbfb7065620714b

Commit-pinned source · Observed 2026-09-16T15:06:19.860Z

Observation is outside the freshness window. Immutable evidence is retained; current registry availability is unknown.

File context: unspecified. Package version in file: 1.0.0.

Runtime declaration in this file
Not declared / unknown
Services and dependency roles

No service declarations extracted from this file; production requirements remain unknown.

Container configuration

Response SHA-256: c0d132fc4c02ed753c6926eb19b62b67573a4e85c2131e2d45f35c84b8fe75ac

packages/pkg-tests/pkg-tests-fixtures/packages/dev-deps-1.0.0/package.json · v1.22.22 · complete

Commit: 740c38c3a962c30ddb344a919bbfb7065620714b

Commit-pinned source · Observed 2026-09-16T15:06:19.860Z

Observation is outside the freshness window. Immutable evidence is retained; current registry availability is unknown.

File context: development_or_example. Package version in file: 1.0.0.

Runtime declaration in this file
Not declared / unknown
Services and dependency roles

No service declarations extracted from this file; production requirements remain unknown.

Container configuration

Response SHA-256: 8ed00738de3482067f5a59d770c12ec4980b15092b4d68bb6af92bc7dbda68a3

packages/pkg-tests/pkg-tests-fixtures/packages/dragon-test-1-a-1.0.0/package.json · v1.22.22 · complete

Commit: 740c38c3a962c30ddb344a919bbfb7065620714b

Commit-pinned source · Observed 2026-09-16T15:06:19.860Z

Observation is outside the freshness window. Immutable evidence is retained; current registry availability is unknown.

File context: unspecified. Package version in file: 1.0.0.

Runtime declaration in this file
Not declared / unknown
Services and dependency roles

No service declarations extracted from this file; production requirements remain unknown.

Container configuration

Response SHA-256: b9d72f4f5e19278417bfe708f90418496c30f14f6e9665f1d66dfcfee92faf06

Container: node:10 · v1.22.22 · complete

Commit: 740c38c3a962c30ddb344a919bbfb7065620714b

Collection endpoint (may change) · Observed 2026-11-14T11:00:39.839Z

Observed manifest digest: sha256:59531d2835edd5161c8f9512f9e095b1836f7a1fcb0ab73e005ec46047384911

image referenced by pinned file; not a proven project release image

Platforms listed in the registry index
  • linux/amd64 · sha256:686e0e859358f28bfe1641e1627549b9cd0ad74f222b953d74209213488c6858
  • linux/arm/v7 · sha256:646d94ee1cdf31632c4f4fc5b2d7567f5484fb4d8bca21ddbea161775354cd59
  • linux/arm64/v8 · sha256:c8c6878c2c9157fbb0d678c4d562a702347cdf580e9efca53c9d34a4c5b89756

Registry index descriptors at observation time only, not functional compatibility. Single-image configs are not downloaded; missing platforms remain unknown.

Response SHA-256: 59531d2835edd5161c8f9512f9e095b1836f7a1fcb0ab73e005ec46047384911

GitHub release · v1.22.22 · complete

Official source

GitHub latest published non-prerelease (not a semantic-version ranking). Verified: 2026-11-14T19:02:19.838Z (UTC).

Listed release assets only. Asset names do not prove platform support or successful execution.

Runtime declarations
Not declared / unknown
Operating systems
Not declared / unknown
CPU architectures
Not declared / unknown
C libraries
Not declared / unknown
Direct dependency declarations
Not declared / unknown
Published artifacts (12)
Provenance

Parser: software-1

First observed: 2026-09-16T11:13:53.818Z (UTC)

Last checked: 2026-11-14T19:02:19.838Z (UTC)

Source response SHA-256: 06af6db0cb5863023cfa0f04bf43b1cd8c57c7d7a2ba9bae0c0324c7c9ded030

bower/bower

Release-pinned deployment declarations

Release commit · v1.8.12 · complete

Commit: f18330b248bb5b796fd9fdeba63f0afdb76e5b4b

Collection endpoint (may change) · Observed 2026-09-16T15:06:19.860Z

Observation is outside the freshness window. Immutable evidence is retained; current registry availability is unknown.

Response SHA-256: 4bea9ec1648f0f4627abe144024342ebd85dbd11e098a7dbe485cbdb03037dea

Release tree · v1.8.12 · complete

Commit: f18330b248bb5b796fd9fdeba63f0afdb76e5b4b

Collection endpoint (may change) · Observed 2026-09-16T15:06:19.860Z

Observation is outside the freshness window. Immutable evidence is retained; current registry availability is unknown.

File search coverage: selected_manifest_names. Only selected manifest filenames were searched; fixtures and vendored dependency directories are excluded. Unlisted declarations remain unknown.

Response SHA-256: e73458fa05b619ea7817a9676ab70f760791ff069f1bf128be6a1c5c68d3aaf2

package.json · v1.8.12 · complete

Commit: f18330b248bb5b796fd9fdeba63f0afdb76e5b4b

Commit-pinned source · Observed 2026-09-16T15:06:19.860Z

Observation is outside the freshness window. Immutable evidence is retained; current registry availability is unknown.

File context: unspecified. Package version in file: 1.8.12.

Runtime declaration in this file
{
  "node": ">=0.10.0"
}
Services and dependency roles

No service declarations extracted from this file; production requirements remain unknown.

Container configuration

Response SHA-256: b8ff83eedaa6f357d2fb8d81bd61b8af0fd3fb05ed1f3196b4991db99b228f65

packages/bower-config/package.json · v1.8.12 · complete

Commit: f18330b248bb5b796fd9fdeba63f0afdb76e5b4b

Commit-pinned source · Observed 2026-09-16T15:06:19.860Z

Observation is outside the freshness window. Immutable evidence is retained; current registry availability is unknown.

File context: unspecified. Package version in file: 1.4.3.

Runtime declaration in this file
{
  "node": ">=0.8.0"
}
Services and dependency roles

No service declarations extracted from this file; production requirements remain unknown.

Container configuration

Response SHA-256: cae0cc38c481a30738f0503c6bc9660764c067906b2c61e209d5a700bc11e965

packages/bower-endpoint-parser/package.json · v1.8.12 · complete

Commit: f18330b248bb5b796fd9fdeba63f0afdb76e5b4b

Commit-pinned source · Observed 2026-09-16T15:45:27.448Z

Observation is outside the freshness window. Immutable evidence is retained; current registry availability is unknown.

File context: unspecified. Package version in file: 0.2.2.

Runtime declaration in this file
{
  "node": ">=0.8.0"
}
Services and dependency roles

No service declarations extracted from this file; production requirements remain unknown.

Container configuration

Response SHA-256: 97f05cf41050f9ffe435da37e0b91098b623e55d9112fa6e7c36bba07cdedc9a

packages/bower-json/package.json · v1.8.12 · complete

Commit: f18330b248bb5b796fd9fdeba63f0afdb76e5b4b

Commit-pinned source · Observed 2026-09-16T15:45:27.448Z

Observation is outside the freshness window. Immutable evidence is retained; current registry availability is unknown.

File context: unspecified. Package version in file: 0.8.4.

Runtime declaration in this file
{
  "node": ">=0.10.0"
}
Services and dependency roles

No service declarations extracted from this file; production requirements remain unknown.

Container configuration

Response SHA-256: ea9be312e955f3cbf0c07d087ca80b9e3556910de48e83892b2fddedde85063a

packages/bower-logger/package.json · v1.8.12 · complete

Commit: f18330b248bb5b796fd9fdeba63f0afdb76e5b4b

Commit-pinned source · Observed 2026-09-16T15:45:27.448Z

Observation is outside the freshness window. Immutable evidence is retained; current registry availability is unknown.

File context: unspecified. Package version in file: 0.2.1.

Runtime declaration in this file
{
  "node": ">=0.10.0"
}
Services and dependency roles

No service declarations extracted from this file; production requirements remain unknown.

Container configuration

Response SHA-256: e14890f4f56402991fe77a057a9551ccfe9438483256accdc38c2c0e2fb77f81

packages/bower-registry-client/package.json · v1.8.12 · complete

Commit: f18330b248bb5b796fd9fdeba63f0afdb76e5b4b

Commit-pinned source · Observed 2026-09-16T15:45:27.448Z

Observation is outside the freshness window. Immutable evidence is retained; current registry availability is unknown.

File context: unspecified. Package version in file: 1.0.0.

Runtime declaration in this file
{
  "node": ">=0.10.0"
}
Services and dependency roles

No service declarations extracted from this file; production requirements remain unknown.

Container configuration

Response SHA-256: 55a615a3bf8b2fa54d0c724788d9bbaeca46ea5d59ea174faf4c57d127398b83

GitHub release · v1.8.12 · not_modified

Official source

GitHub latest published non-prerelease (not a semantic-version ranking). Verified: 2026-11-15T00:00:39.849Z (UTC).

Listed release assets only. Asset names do not prove platform support or successful execution.

Runtime declarations
Not declared / unknown
Operating systems
Not declared / unknown
CPU architectures
Not declared / unknown
C libraries
Not declared / unknown
Direct dependency declarations
Not declared / unknown
Published artifacts (0)
    Provenance

    Parser: software-1

    First observed: 2026-09-16T11:13:53.818Z (UTC)

    Last checked: 2026-11-15T00:00:39.849Z (UTC)

    Source response SHA-256: 9396cecf5062a3db3c89f415aafb1c6836356af90a9be63f38fc0fcdec789b3a

    Timeline

    “Event time” is an upstream timestamp when the source provides one; “first observed” is when this project saw it. They are deliberately separate columns.

    EventEvent timeFirst observedSource
    yarnpkg/yarn metadata first observed — 2026-09-11T16:48:51Z link
    recent commit activity of yarnpkg/yarn observed (5 commits in sampled window) 2026-02-12T04:44:38Z 2026-09-11T16:48:54Z link
    bower/bower metadata first observed — 2026-09-11T16:48:55Z link
    recent commit activity of bower/bower observed (5 commits in sampled window) 2024-10-13T10:45:04Z 2026-09-11T16:48:58Z link
    automatic evaluation -> insufficient_data — 2026-09-11T16:53:25Z —
    automatic evaluation -> insufficient_data — 2026-09-11T16:58:19Z —
    automatic evaluation -> insufficient_data — 2026-09-12T02:55:35Z —
    automatic evaluation -> insufficient_data — 2026-09-12T02:57:05Z —
    automatic evaluation -> insufficient_data — 2026-09-12T02:59:28Z —

    Decision and dispute history

    Review decisions are recorded privately with reasons that stay internal; this public history shows what happened and when, not why.

    KindWhen (UTC)
    automatic evaluation → insufficient_data2026-09-11T16:53:25Z
    automatic evaluation → insufficient_data2026-09-11T16:58:19Z
    automatic evaluation → insufficient_data2026-09-12T02:55:35Z
    automatic evaluation → insufficient_data2026-09-12T02:57:05Z
    automatic evaluation → insufficient_data2026-09-12T02:59:28Z

    To question this report, use the feedback form, select “data error”, and include pair ID bower-yarn. Feedback is reviewed privately and does not change a report automatically.

    Snapshot taken at 2026-11-15T10:01:58.857Z (UTC).