Classiq 0.40.0

Upgrade Instructions

• Python SDK
• The IDE upgrades automatically.

Interface Changes

1. The control and quantum_if statements have been unified into one
   statement in native QMOD and the SDK under the name control.
   • SDK: The unified control statement accepts a qbit (q), a q-array
     (qbv), or a comparison of a qnum and an integer (n == 5) as the
     first argument.
   • SDK: The old control syntax (with ctrl as the second argument) is
     deprecated and will be removed in the next release.
   • SDK: The quantum_if operator is deprecated and will be removed in the
     next release.
   • Native QMOD: quantum_if is no longer supported, use the new control
     statement instead.
2. SDK: The QParam and Array types are deprecated and will be
   removed in the next release.
   • Instead of QParam[int], use CInt.
   • Instead of QParam[float], use CReal.
   • Instead of QParam[bool], use CBool.
   • Instead of QParam[List[...]], use CArray[...].
   • Instead of QParam[Array[..., size]], use CArray[..., size].
3. SDK: Using Python types (int, bool, etc.) in struct declarations
   (@struct) is deprecated and will not be supported by the next release.
   Instead, use classical data types (CInt, CBool, etc., see above).
4. Default timeout for sending jobs to AWS changed from 5 minutes to 4 hours.

Deprecations

1. The error mitigation settings in the execution preferences are no longer
   available.
2. The aer_simulator backend has been removed. Use Classiq's simulator backend
   instead (ClassiqSimulatorBackendNames.SIMULATOR).

Enhancements

1. Improved error messages.

Bug fixes

1. Fixed a bug preventing execution of circuits synthesized with hardware aware synthesis on Azure and IonQ.