0.20.0 Upgrade Instructions¶ Python SDK VS Code Extension - deprecated. Use IDE instead. Interface Changes¶ Remove num_qubits attribute from StatePreparation and add it to GaussianMixture. Enhancements¶ Add error metrics for StatePreparation: total variation, Hellinger, and Bhattacharyya. Add the ComputationalStatePreparation function. Add the GHZStatePreparation function. Add the Operators' Estimator execution building block. Change the AmplitudeEstimation parameters to GroverOperator and estimation_register_size. IDE Improvements¶ Automatic Registers Resolution: Automatically label, color, and merge (when possible) individual qubits according to their associated registers. See Automatic Registers Resolution.