To report an issue or request a feature in our open-source projects, first check if there is already an open issue for your bug report / feature request at the links above. If not, file an issue by following the provided template and/or contributing guidelines. Thanks for helping improve open-source quantum software!
If you're not sure whether a certain behavior is buggy, or if you have other questions, please ask us in the Cirq Gitter channel.
Weekly developer meetings
You may also be interested to join the weekly Cirq sync with Cirq developers and contributors. There are also weekly syncs for OpenFermion, qsim, and TensorFlow Quantum.