{
 "schema_version": "1.7.0",
 "id": "x_NXMC-2020-0023",
 "modified": "2026-10-19T02:33:38.839Z",
 "published": "2026-10-18T09:00:52.565Z",
 "summary": "roberta-base-squad2: tokenizer change at 784fa08 (2020-03-23)",
 "details": "roberta-base-squad2: pad token 0 to unset; batched training masks a different id (2020-03-23).\n\nRepository: https://huggingface.co/deepset/roberta-base-squad2. Revisions from 784fa08ee01e943e70962a88f9935514ccf3964e onward carry this change; a pin at 8f39c9f238c22cd65cc499d0f69224742c6f30b7 or earlier does not.\n\nChanged keys:\n- pad_token_id: 0 -> unset (tokenizer)\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/deepset/roberta-base-squad2",
     "events": [
      {
       "introduced": "784fa08ee01e943e70962a88f9935514ccf3964e"
      }
     ]
    }
   ],
   "database_specific": {
    "model": "deepset/roberta-base-squad2",
    "previous_revision": "8f39c9f238c22cd65cc499d0f69224742c6f30b7"
   }
  }
 ],
 "references": [
  {
   "type": "INTRODUCED",
   "url": "https://huggingface.co/deepset/roberta-base-squad2/commit/784fa08ee01e943e70962a88f9935514ccf3964e"
  },
  {
   "type": "PACKAGE",
   "url": "https://huggingface.co/deepset/roberta-base-squad2"
  },
  {
   "type": "WEB",
   "url": "https://www.neurarch.com/changes-feeds/models/deepset/roberta-base-squad2.html"
  }
 ],
 "database_specific": {
  "source": "neurarch model change tracker",
  "model": "deepset/roberta-base-squad2",
  "kind": "tokenizer",
  "classes": [
   "tokenizer"
  ],
  "changed_keys": [
   {
    "file": "config",
    "key": "pad_token_id",
    "before": 0,
    "after": null,
    "class": "tokenizer"
   }
  ],
  "impact": {
   "memory": false,
   "serving": true,
   "tokenizer": true,
   "licence": null
  },
  "breaking": true,
  "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": "2020-03-23T21:43:57.000Z",
  "detected_at": "2026-10-18T09:00:52.565Z",
  "detected_by": "backfill",
  "days_since_first_commit": 61,
  "license": "CC-BY-4.0"
 }
}