{
 "schema_version": "1.7.0",
 "id": "x_NXMC-2024-0183",
 "modified": "2026-10-19T02:33:38.839Z",
 "published": "2026-10-18T09:00:52.565Z",
 "summary": "gemma-2-2b-it: template change at d8d6c73 (2024-07-16)",
 "details": "gemma-2-2b-it: a chat template was added; apply_chat_template now formats prompts that it previously refused or formatted by default (2024-07-16).\n\nRepository: https://huggingface.co/google/gemma-2-2b-it. Revisions from d8d6c73026ed2e8c636a08d24d647bb427ab0325 onward carry this change; a pin at 44317f247eebc0288d54496f1eb22754dac637c9 or earlier does not.\n\nChanged keys:\n- tokenizer chat_template_sha256: unset -> ecd6ae513fe103f0 (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/google/gemma-2-2b-it",
     "events": [
      {
       "introduced": "d8d6c73026ed2e8c636a08d24d647bb427ab0325"
      }
     ]
    }
   ],
   "database_specific": {
    "model": "google/gemma-2-2b-it",
    "previous_revision": "44317f247eebc0288d54496f1eb22754dac637c9"
   }
  }
 ],
 "references": [
  {
   "type": "INTRODUCED",
   "url": "https://huggingface.co/google/gemma-2-2b-it/commit/d8d6c73026ed2e8c636a08d24d647bb427ab0325"
  },
  {
   "type": "PACKAGE",
   "url": "https://huggingface.co/google/gemma-2-2b-it"
  },
  {
   "type": "WEB",
   "url": "https://www.neurarch.com/changes-feeds/models/google/gemma-2-2b-it.html"
  }
 ],
 "database_specific": {
  "source": "neurarch model change tracker",
  "model": "google/gemma-2-2b-it",
  "kind": "template",
  "classes": [
   "template"
  ],
  "changed_keys": [
   {
    "file": "tokenizer",
    "key": "chat_template_sha256",
    "before": null,
    "after": "ecd6ae513fe103f0",
    "class": "template"
   }
  ],
  "impact": {
   "memory": false,
   "serving": true,
   "tokenizer": true,
   "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": "2024-07-16T11:31:21.000Z",
  "detected_at": "2026-10-18T09:00:52.565Z",
  "detected_by": "backfill",
  "days_since_first_commit": 0,
  "license": "CC-BY-4.0"
 }
}