Install package

npm install --registry https://fs.get-ig.org/pkgs hl7.fhir.uv.xver-r3.r4.r4

Get resources

curl https://fs.get-ig.org/rs/hl7.fhir.uv.xver-r3.r4.r4-0.0.1-snapshot-2.ndjson.gz | gunzip | jq '{url,resourceType,version, id}'

The cross-version extensions available in FHIR R4 from FHIR R3 (built Sat, Sep 13, 2025 15:32-0400-04:00)

package.json

{
  "description": "The cross-version extensions available in FHIR R4 from FHIR R3 (built Sat, Sep 13, 2025 15:32-0400-04:00)",
  "fhirVersions": [ "4.0.1" ],
  "tools-version": 3,
  "_id": "hl7.fhir.uv.xver-r3.r4.r4@0.0.1-snapshot-2",
  "date": "20250913153229",
  "license": "CC0-1.0",
  "jurisdiction": "http://unstats.un.org/unsd/methods/m49/m49.htm#001",
  "tgz": "-/hl7.fhir.uv.xver-r3.r4.r4-0.0.1-snapshot-2.tgz",
  "dist": {
    "tarball": "https://fs.get-ig.org/-/hl7.fhir.uv.xver-r3.r4.r4-0.0.1-snapshot-2.tgz"
  },
  "name": "hl7.fhir.uv.xver-r3.r4.r4",
  "dist-tags": {
    "latest": "0.0.1-snapshot-2"
  },
  "type": "IG",
  "title": "FHIR Cross-Version Extensions package for FHIR R4 from FHIR R3",
  "author": "FHIR Infrastructure",
  "_versions": [ "0.0.1-snapshot-2" ],
  "id": "hl7.fhir.uv.xver-r3.r4.r4@0.0.1-snapshot-2",
  "directories": {
    "lib": "package",
    "example": "example"
  },
  "canonical": "http://hl7.org/fhir/3.0",
  "url": "http://hl7.org/fhir/uv/xver-r3.r4/0.0.1-snapshot-2",
  "versions": {
    "0.0.1-snapshot-2": {
      "description": "The cross-version extensions available in FHIR R4 from FHIR R3 (built Sat, Sep 13, 2025 15:32-0400-04:00)",
      "fhirVersions": [ "4.0.1" ],
      "tools-version": 3,
      "_id": "hl7.fhir.uv.xver-r3.r4.r4@0.0.1-snapshot-2",
      "date": "20250913153229",
      "license": "CC0-1.0",
      "jurisdiction": "http://unstats.un.org/unsd/methods/m49/m49.htm#001",
      "tgz": "-/hl7.fhir.uv.xver-r3.r4.r4-0.0.1-snapshot-2.tgz",
      "dist": {
        "tarball": "https://fs.get-ig.org/-/hl7.fhir.uv.xver-r3.r4.r4-0.0.1-snapshot-2.tgz"
      },
      "name": "hl7.fhir.uv.xver-r3.r4.r4",
      "type": "IG",
      "title": "FHIR Cross-Version Extensions package for FHIR R4 from FHIR R3",
      "author": "FHIR Infrastructure",
      "id": "hl7.fhir.uv.xver-r3.r4.r4@0.0.1-snapshot-2",
      "directories": {
        "lib": "package",
        "example": "example"
      },
      "canonical": "http://hl7.org/fhir/3.0",
      "url": "http://hl7.org/fhir/uv/xver-r3.r4/0.0.1-snapshot-2",
      "lsn": 2147,
      "version": "0.0.1-snapshot-2",
      "timestamp": "2025-10-29T15:21:29.321887352Z",
      "maintainers": [ {
        "url": "http://www.hl7.org/Special/committees/fiwg",
        "name": "FHIR Infrastructure"
      } ],
      "dependencies": {
        "hl7.fhir.r4.core": "4.0.1",
        "hl7.terminology.r4": "6.5.0",
        "hl7.fhir.uv.extensions.r4": "5.2.0"
      }
    }
  },
  "lsn": 2147,
  "version": "0.0.1-snapshot-2",
  "timestamp": "2025-10-29T15:21:29.321887352Z",
  "maintainers": [ {
    "url": "http://www.hl7.org/Special/committees/fiwg",
    "name": "FHIR Infrastructure"
  } ],
  "dependencies": {
    "hl7.fhir.r4.core": "4.0.1",
    "hl7.terminology.r4": "6.5.0",
    "hl7.fhir.uv.extensions.r4": "5.2.0"
  }
}

Versions

0.0.1-snapshot-2