{
 "schema_version": "1.7.0",
 "id": "x_NXMC-2025-0096",
 "modified": "2026-10-19T02:33:38.839Z",
 "published": "2026-10-18T09:00:52.565Z",
 "summary": "Qwen3-30B-A3B-Instruct-2507: tokenizer change at fd5492e (2025-07-29)",
 "details": "Qwen3-30B-A3B-Instruct-2507: the chat template text changed but rendered byte-identically on the fixed conversation set (system+user, multi-turn, tool call); tokenizer model_max_length 131072 to 262144; truncation defaults change (2025-07-29).\n\nRepository: https://huggingface.co/Qwen/Qwen3-30B-A3B-Instruct-2507. Revisions from fd5492ea24611e203da0b593be7916913e490362 onward carry this change; a pin at 023ad300e0cf991b9e6aeacade6e7bc71185fe71 or earlier does not.\n\nChanged keys:\n- tokenizer chat_template_sha256: a55ee1b1660128b7 -> 40c21f34cf67d8c7 (template)\n- tokenizer model_max_length: 131072 -> 262144 (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/Qwen/Qwen3-30B-A3B-Instruct-2507",
     "events": [
      {
       "introduced": "fd5492ea24611e203da0b593be7916913e490362"
      }
     ]
    }
   ],
   "database_specific": {
    "model": "Qwen/Qwen3-30B-A3B-Instruct-2507",
    "previous_revision": "023ad300e0cf991b9e6aeacade6e7bc71185fe71"
   }
  }
 ],
 "references": [
  {
   "type": "INTRODUCED",
   "url": "https://huggingface.co/Qwen/Qwen3-30B-A3B-Instruct-2507/commit/fd5492ea24611e203da0b593be7916913e490362"
  },
  {
   "type": "PACKAGE",
   "url": "https://huggingface.co/Qwen/Qwen3-30B-A3B-Instruct-2507"
  },
  {
   "type": "WEB",
   "url": "https://www.neurarch.com/changes-feeds/models/Qwen/Qwen3-30B-A3B-Instruct-2507.html"
  }
 ],
 "database_specific": {
  "source": "neurarch model change tracker",
  "model": "Qwen/Qwen3-30B-A3B-Instruct-2507",
  "kind": "tokenizer",
  "classes": [
   "tokenizer",
   "template"
  ],
  "changed_keys": [
   {
    "file": "tokenizer",
    "key": "chat_template_sha256",
    "before": "a55ee1b1660128b7",
    "after": "40c21f34cf67d8c7",
    "class": "template"
   },
   {
    "file": "tokenizer",
    "key": "model_max_length",
    "before": 131072,
    "after": 262144,
    "class": "tokenizer"
   }
  ],
  "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": "2025-07-29T12:11:03.000Z",
  "detected_at": "2026-10-18T09:00:52.565Z",
  "detected_by": "backfill",
  "days_since_first_commit": 1,
  "license": "CC-BY-4.0"
 }
}