QCI Connect SDK 0.10.0 released

21. July 2026

We are delighted to announce the release of the new version, v0.10.0, of the QCI Connect SDK, designed to offer both quantum experts and beginners an even more powerful and flexible development environment.

With this release, we are introducing enhanced functionality, improved performance and a consistent architecture to make integration into your quantum workflows even easier.

The landing page has also been improved and now offers easier navigation to the resources and the release history.

The key new features for users

The full changelog can be found in the release history.

Enhanced tools in the Application Library Framework

  • Simplified interfaces
  • Easier implementation of apps with a web demo
  • Circuit names are now optional, and error messages are now displayed if there are duplicates
  • Bit strings can be entered more conveniently and in a variety of ways (for creating sample histograms)
  • Quantum results are easier to interpret and can be read in more ways (e.g. by specifying the circuit and observable instances)
  • Hamiltonians and Observables provide consistent interfaces and simpler initialisation (e.g. directly in the constructor from a string or an instance of the other data type, Hamiltonian<->Observable)
  • Local state vector simulators (Cirq + Qiskit) for easy local prototyping

New quantum algorithms in AppLib

  • QAOA (Quantum Approximate Optimisation Algorithm) for optimisation problems.
  • Statevector PITE: for precise ground-state determination using local statevector simulation

Technical adjustments & stability

  • API v4 upgrade: The client and the Miniserver now communicate using the new API version
  • Improved compiler integration: Compiler images are now available on Docker Hub, and the GRPC interface has been optimised.
  • Performance boost: ZX-Calculus-based circuit equivalence checking in ALF – faster circuit testing and optimisation.