# Document history
<a name="doc-history"></a>

The following table describes significant changes to this guide. If you want to be notified about future updates, you can subscribe to an [RSS feed](https://docs.aws.amazon.com/prescriptive-guidance/latest/generative-ai-nlp-healthcare/generative-ai-nlp-healthcare.rss).

| Change | Description | Date | 
| --- |--- |--- |
| [New sections](#doc-history) | We added the [Fine-tuning large language models in healthcare section](https://docs.aws.amazon.com/prescriptive-guidance/latest/generative-ai-nlp-healthcare/fine-tuning.html) and the [Prompt engineering](https://docs.aws.amazon.com/prescriptive-guidance/latest/generative-ai-nlp-healthcare/llms.html#llm-customization-prompt-engineering) section. | December 5, 2025 | 
| [Initial publication](#doc-history) | — | December 16, 2024 |