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Upgrading to Calcium 4.0
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Registered users of Calcium Professional version 3.5 or newer can upgrade to the latest release at a significant discount.

If you currently have Calcium 3.9 or 3.10, please use this order form

If you currently have Calcium 3.5 - 3.8, please use this order form

If you like, you can read about what's involved in the upgrade process.