> For the complete documentation index, see [llms.txt](https://training.onedoggo.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://training.onedoggo.com/tech-sharing/elastic-stack-version-upgrade.md).

# Elastic Stack 版本升級記錄

這裡主要會記錄與課程內容有關的升級變化。