ns-3.47 has been released, due to contributions from twenty-eight authors. This release adds new traffic generators from the IEEE 802.11ax evaluation methodology, support for TCP Forward Acknowledgement, and improvements to 3GPP propagation models for outdoor-to-indoor penetration losses. The ns-3 3GPP channel model now supports a spatial-consistency update procedure consistent with TR 38.901. The global routing framework has been extended to support IPv6, and a “PrintRoute” functionality similar to traceroute has been added. LR-WPAN devices are now supported in the Pyviz visualizer, and a TCP BBR Python example program was added.