# Archive of Previous Versions
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The following archive versions of this User Guide are available:
+ [ Research and Engineering Studio User Guide **2025.12 release**](https://docs.aws.amazon.com/res/archive/2025.12/ug/overview.html)
+ [ Research and Engineering Studio User Guide **2025.09 release**](https://docs.aws.amazon.com/res/archive/2025.09/ug/overview.html)
+ [ Research and Engineering Studio User Guide **2025.06 release**](https://docs.aws.amazon.com/res/archive/2025.06/ug/overview.html)
+ [ Research and Engineering Studio User Guide **2025.03 release**](https://docs.aws.amazon.com/res/archive/2025.03/ug/overview.html)