upgrade_impact

cloud.coredls.vigia/vigia · Verify this server

Reports what changes between two versions of an npm package by diffing the public TypeScript API of both releases (only the type declarations are analyzed; package code is never executed): removed exports and import paths, changed function signatures and class or interface members, newly deprecated APIs, changed engines and peerDependencies, and the changelog sections published in between. Returns a summary with counts and a likely_breaking flag, followed by the before/after detail of each change. Read-only and requires no authentication. The first request for a version pair can take up to about 25 seconds while the analysis runs; if it is still running the result has status "pending" and retry_after_s, and you should call again after that delay. Limits: only npm packages that ship TypeScript types (or have @types) can be analyzed, and behavior changes that do not alter types (for example new caching defaults) are invisible, so also read the returned changelog. Use it BEFORE upgrading a dependency across a major version, or when code written for an old version fails on a new one. For one API in one version use symbol_status; for vulnerabilities use version_status; to choose a version that fits an older runtime use find_compatible_version.