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Pay close attention to any files from the Maps SDK for Unity that you changed earlier. Use a file comparison/diff tool like Sourcetree or TortoiseGit to make this process easier.
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If you did not change any source files from the previous version, you can skip ahead to the Map setup section of this guide. You will need this backup project to make the migration process smoothly.
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Create a back up of your project to a new folder before migrating to the Maps SDK for Unity v1.4 or higher.
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