[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"insight-vercel-changelog-2026-05-27-withmetadata-param-deprecated-mounts-field-renamed-from":3},{"source":4,"alert":11},{"id":5,"displayName":6,"vendor":7,"kind":8,"apiType":9,"url":10},"vercel-changelog","Vercel API","vercel","openapi-json","rest","https:\u002F\u002Fopenapi.vercel.sh\u002F",{"id":12,"slug":13,"severity":14,"title":15,"summary":16,"detectedAt":17},"01KSMAM6HBQD1XVWQTC5D3NMR6","2026-05-27-withmetadata-param-deprecated-mounts-field-renamed-from","Breaking","withMetadata param deprecated; mounts field renamed from volume to drive","Two distinct changes are present:\n\n- **`withMetadata` query parameter** on at least two feature-flag list endpoints is now formally deprecated (`\"deprecated\": true`), with guidance to resolve creator identity client-side and use the single-flag lookup endpoint instead. Existing integrations relying on this parameter should migrate before it is removed.\n- **`mounts[*].volume` field renamed to `drive`** in a sandbox-related response schema. This is a breaking rename: the `volume` property is removed from the required fields and replaced by `drive`, so any client reading `mounts[*].volume` will receive `undefined`\u002Fnull at runtime.","2026-05-27T09:00:38.827Z"]