Gaussian 16 Revision C.01 Access

Gaussian 16 Revision C.01 is a release of the Gaussian suite of electronic-structure programs used for computational chemistry. It implements a wide range of quantum chemical methods (Hartree–Fock, density functional theory, post‑Hartree–Fock correlated methods such as Møller–Plesset perturbation theory and coupled-cluster theory), basis sets, excited-state methods, and utilities for molecular properties, spectra, and reaction modeling. Revision C.01 is a maintenance/bugfix update in the Gaussian 16 lineage that preserves core functionality while addressing stability, performance, and small-feature adjustments relative to prior revisions.

Source: CCL (Computational Chemistry List) Archives / Gaussian Help Blogs Topic: Hidden Defaults in G16 C.01 gaussian 16 revision c.01

Revision C.01 introduced several subtle changes to default behaviors that caught many users off guard when upgrading from Revision B.01. Gaussian 16 Revision C

Source: Mick Philpott’s Blog (and similar computational chemistry blogs) Topic: Comparing Gaussian 16 C.01 to ORCA 5.0 Revision C

While not a "release note," many computational chemists write comparative blogs when new revisions drop.

Revision C.01 introduced several significant new methods for computational chemistry: