• Support v4 basepackage. This new basepackage regenerated all packages with the latest data, improving terrain precision and accuracy. Expanded data coverage for high latitude regions (including the Arctic and Antarctic) and small islands in the ocean.

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• 支持v4底包。使用最新数据全量重生成所有的数据包，提升地形精度和准确度。扩充了高纬度地区的数据覆盖（包括北极和南极）和海洋中小岛的数据覆盖。