I have made some updates to the ship codex site today. I have added the new class 1 optional module slots to all ships (x2 for small, x1 for the rest). Also added is the Thargoid Hydra Interceptor. All the known stats are in place and I have added the ship blueprint for download in all four languages in HD and 4k. See it on the codex here.
The Hydra is the largest Thargoid vessel encountered to date.