Migration Guide > Migration Guide > Upgrading from OpenROAD 4.0 or 4.1 > Phase 1: Prepare for the Upgrade > Make a 4.1 Development Environment Available
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Make a 4.1 Development Environment Available
The upgrade process will highlight certain issues with your 4.1 applications. You need a working 4.1 development environment to investigate and document these issues.
The development environment must include access to the following:
• A database with a full copy of the source for all the existing OpenROAD applications
• Suitable data for developers to exercise every significant business and maintenance path the application supports
Last modified date: 12/20/2023