Rust crate upgrade brief between two versions of a crates.io crate (tokio, clap,
Rust crate upgrade brief between two versions of a crates.io crate (tokio, clap, rand, serde): removed and changed Cargo features, default feature changes, dependency requirement diff, rust-version (MSRV) and edition changes, yanked releases in the range, breaking items from GitHub releases and CHANGELOG, and the Cargo.toml edit. Read from the crates.io index and the crate repository.
Answeringour last check, 2026-10-31
2 of 2checks answered this week
455 msmedian answer time
$0.005listed price per call
$0.005price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://upgrade-brief.shopttyass-85f.workers.dev/crates/breaking-changes
| Category | Everything else |
|---|---|
| Provider host | upgrade-brief.shopttyass-85f.workers.dev |
| Networks | eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-31 | valid payment request | 402 | $0.005 | 474 ms |
| 2026-10-29 | valid payment request | 402 | $0.005 | 436 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"crate": "tokio",
"from": "1.30.0",
"to": "1.40.0"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"additionalProperties": false,
"properties": {
"crate": {
"description": "crates.io crate name, e.g. 'tokio', 'serde', 'clap', 'axum'",
"type": "string"
},
"features": {
"description": "Optional: comma-separated Cargo features you enable (e.g. 'full,macros'), to flag removed ones",
"type": "string"
},
"from": {
"description": "Version you use now: exact ('1.30.0') or a major/minor prefix ('1.30') resolved to its newest release",
"type": "string"
},
"prereleases": {
"default": "false",
"description": "Include prerelease versions in the range",
"enum": [
"true",
"false"
],
"type": "string"
},
"to": {
"default": "latest",
"description": "Target version: exact, or a major/minor prefix ('2', '0.8') resolved to its first release. Default: newest non-yanked stable",
"type": "string"
}
},
"required": [
"crate",
"from"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"asOf": {
"type": "string"
},
"attribution": {
"type": "string"
},
"breaking": {
"description": "Documented breaking items per release, newest first",
"items": {
"properties": {
"bump": {
"type": "string"
},
"items": {
"items": {
"type": "string"
},
"type": "array"
},
"publishedAt": {
"description": "ISO date",
"type": [
"string",
"null"
]
},
"source": {
"description": "Release or changelog URL",
"type": [
"string",
"null"
]
},
"tag": {
"type": "string"
},
"version": {
"type": "string"
}
},
"type": "object"
},
"type": "array"
},
"coverage": {
"description": "Releases with and without notes, and which structured diffs were possible",
"type": "object"
},
"crate": {
"type": "string"
},
"crateUrl": {
"type": "string"
},
"degraded": {
"description": "true when GitHub was read without an API token (fewer release notes reachable)",
"type": "boolean"
},
"dependencies": {
"description": "Normal and build dependency diff from the sparse index: added, removed, changed (requirement, optional, default-features)",
"type": "object"
},
"ecosystem": {
"enum": [
"crates.io"
],
"type": "string"
},
"edition": {
"type": "object"
},
"edits": {
"items": {
"properties": {
"affectsYourCargoToml": {
"type": [
"boolean",
"null"
]
},
"edit": {
"type": "string"
}
},
"type": "object"
},
"type": "array"
},
"features": {
"description": "Cargo feature diff: removed, added, changed, defaultChange",
"type": "object"
},
"from": {
"type": "string"
},
"includesPrereleases": {
"type": "boolean"
},
"latest": {
"type": "string"
},
"license": {
"type": "object"
},
"majorBumps": {
"items": {
"type": "string"
},
"type": "array"
},
"migrationGuides": {
"description": "Migration / upgrade guide links found in the notes",
"items": {
"type": "string"
},
"type": "array"
},
"notes": {
"items": {
"type": "string"
},
"type": "array"
},
"repository": {
"description": "Repository",
"type": [
"string",
"null"
]
},
"rustVersion": {
"description": "rust-version (MSRV) at both versions and whether it was raised",
"type": "object"
},
"sources": {
"items": {
"type": "string"
},
"type":