Knapsack 2.1.4 fixes Copy & Paste for ToDo items and the “Persistent store migration failed, missing mapping model” error when trying to upgrade from Knapsack 1.1. This update also fixes several other minor issues and a rare crash during failed trip exports.
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Use “Check for Updates” under the main Knapsack menu or download it directly.
This update has been submitted to the Mac App Store and should be available once it passes Apple’s review process.