{
 "schema_version": "1.7.0",
 "id": "x_NXMC-2024-0212",
 "modified": "2026-10-19T02:33:38.839Z",
 "published": "2026-10-18T09:00:52.565Z",
 "summary": "EuroLLM-1.7B-Instruct: structural change at c3d0551 (2024-09-24)",
 "details": "EuroLLM-1.7B-Instruct: context window 4096 to 8192 tokens; the chat template changed and renders differently (system+user, multi-turn, tool-call); prompts rendered with the old one no longer match what the model now expects, so cached prompts and eval sets need re-rendering (2024-09-24).\n\nRepository: https://huggingface.co/utter-project/EuroLLM-1.7B-Instruct. Revisions from c3d05511128e1978ddb3ab69f482f0304785d066 onward carry this change; a pin at c00431158750cc7f03f668bd4faec98bb68bc18f or earlier does not.\n\nChanged keys:\n- max_position_embeddings: 4096 -> 8192 (structural)\n- tokenizer chat_template_sha256: 58c1a1f04baa7ada -> f8da69f2d83ed284 (template)\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/utter-project/EuroLLM-1.7B-Instruct",
     "events": [
      {
       "introduced": "c3d05511128e1978ddb3ab69f482f0304785d066"
      }
     ]
    }
   ],
   "database_specific": {
    "model": "utter-project/EuroLLM-1.7B-Instruct",
    "previous_revision": "c00431158750cc7f03f668bd4faec98bb68bc18f"
   }
  }
 ],
 "references": [
  {
   "type": "INTRODUCED",
   "url": "https://huggingface.co/utter-project/EuroLLM-1.7B-Instruct/commit/c3d05511128e1978ddb3ab69f482f0304785d066"
  },
  {
   "type": "PACKAGE",
   "url": "https://huggingface.co/utter-project/EuroLLM-1.7B-Instruct"
  },
  {
   "type": "WEB",
   "url": "https://www.neurarch.com/changes-feeds/models/utter-project/EuroLLM-1.7B-Instruct.html"
  }
 ],
 "database_specific": {
  "source": "neurarch model change tracker",
  "model": "utter-project/EuroLLM-1.7B-Instruct",
  "kind": "structural",
  "classes": [
   "structural",
   "template"
  ],
  "changed_keys": [
   {
    "file": "config",
    "key": "max_position_embeddings",
    "before": 4096,
    "after": 8192,
    "class": "structural"
   },
   {
    "file": "tokenizer",
    "key": "chat_template_sha256",
    "before": "58c1a1f04baa7ada",
    "after": "f8da69f2d83ed284",
    "class": "template"
   }
  ],
  "impact": {
   "memory": true,
   "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": {
    "before": 4096,
    "after": 8192
   },
   "eos": null,
   "bos": null
  },
  "commit_date": "2024-09-24T13:25:28.000Z",
  "detected_at": "2026-10-18T09:00:52.565Z",
  "detected_by": "backfill",
  "days_since_first_commit": 49,
  "license": "CC-BY-4.0"
 }
}