{
 "schema_version": "1.7.0",
 "id": "x_NXMC-2020-0020",
 "modified": "2026-10-19T02:33:38.839Z",
 "published": "2026-10-18T09:00:52.565Z",
 "summary": "roberta-base: metadata change at 2ecd732 (2020-01-31)",
 "details": "roberta-base: architectures declared as [\"RobertaForMaskedLM\"] (was unset) (2020-01-31).\n\nRepository: https://huggingface.co/FacebookAI/roberta-base. Revisions from 2ecd732fb792ee9de217a2f7a7154e044cf3d782 onward carry this change; a pin at e306078ce88386f7afbfa6e79a76d19b7e87f0c8 or earlier does not.\n\nChanged keys:\n- architectures: unset -> [\"RobertaForMaskedLM\"] (metadata)\n\nThis record says what the change does mechanically. It is not a report that anything broke for anyone.",
 "affected": [
  {
   "ranges": [
    {
     "type": "GIT",
     "repo": "https://huggingface.co/FacebookAI/roberta-base",
     "events": [
      {
       "introduced": "2ecd732fb792ee9de217a2f7a7154e044cf3d782"
      }
     ]
    }
   ],
   "database_specific": {
    "model": "FacebookAI/roberta-base",
    "previous_revision": "e306078ce88386f7afbfa6e79a76d19b7e87f0c8"
   }
  }
 ],
 "references": [
  {
   "type": "INTRODUCED",
   "url": "https://huggingface.co/FacebookAI/roberta-base/commit/2ecd732fb792ee9de217a2f7a7154e044cf3d782"
  },
  {
   "type": "PACKAGE",
   "url": "https://huggingface.co/FacebookAI/roberta-base"
  },
  {
   "type": "WEB",
   "url": "https://www.neurarch.com/changes-feeds/models/FacebookAI/roberta-base.html"
  }
 ],
 "database_specific": {
  "source": "neurarch model change tracker",
  "model": "FacebookAI/roberta-base",
  "kind": "metadata",
  "classes": [
   "metadata"
  ],
  "changed_keys": [
   {
    "file": "config",
    "key": "architectures",
    "before": null,
    "after": [
     "RobertaForMaskedLM"
    ],
    "class": "metadata"
   }
  ],
  "impact": {
   "memory": false,
   "serving": false,
   "tokenizer": false,
   "licence": null
  },
  "breaking": false,
  "breaking_rule": "https://www.neurarch.com/changes-feeds/advisories/index.json#breaking_rule",
  "consequence": {
   "params": null,
   "weightsGbBf16": null,
   "trainPeakGb": null,
   "fingerprint": null,
   "context": null,
   "eos": null,
   "bos": null
  },
  "commit_date": "2020-01-31T23:00:29.000Z",
  "detected_at": "2026-10-18T09:00:52.565Z",
  "detected_by": "backfill",
  "days_since_first_commit": 179,
  "license": "CC-BY-4.0"
 }
}