Update README.md

README.md

@@ -25,6 +25,8 @@ Smaller in size (~0.9 GB) for the same quant level as the multimodal version, be
 
 Supports `{%- set enable_thinking = false %}` Jinja variable.
 
+> Update [2026-04-12]: Refined the chat template to further improve stability for long-running tasks and tool use; mitigated an issue where incorrect think tag formatting could leak from a distillation dataset.
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 ## Quantization Details