Release Notes

Detailed release notes for each version of QDK/Chemistry, including new features, code examples, and migration guidance.

• What’s New in Version 2.0
  • Highlights
  • The Symmetry-Blocked Data Model
  • Consolidated Wavefunction Containers
  • Nuclear Gradients and Hessians
  • Stabilized SCF and ROHF Direct Minimization
  • New Simulation Primitives
  • Fermion-to-Qubit Mapping as Data
  • Term Grouping and Expectation Estimation
  • Resource Estimation
  • Other Improvements
  • Breaking Changes and Migration
  • Deprecation Policy
  • Bug Fixes
  • Infrastructure and Packaging
• What’s New in Version 1.1
  • Highlights
  • Model Hamiltonians
  • Q#-Native Circuit Architecture
  • Arbitrary-Order Trotter-Suzuki
  • Native ROHF in QDK SCF
  • Cholesky-Based AO-to-MO Transformation
  • OpenFermion Plugin
  • MACIS Improvements
  • Orbital Localization
  • Other Improvements
  • Bug Fixes
  • Infrastructure and Packaging