Bring the platforms together
The August update placed crossplay Phase One after console and mobile caught up with the PC balance release and any necessary fixes. Crossplay was a development goal, not an already available option on every platform.
Two stages of connection
The announced first phase focuses on joining through local networks or an IP address and port. A later phase is planned around shareable join codes. No firm release date was given for either phase in this update.
Keep modded worlds separate
The tModLoader team was still bringing the 1.4.5 changes into its own codebase. Its regular update remained on the 1.4.4 line. A vanilla update and a matching mod-loader update are separate releases.