In T3.0 ``streams'' have be renamed to ``ports''. This was done for compatibility with SCHEME and to avoid incompatibility with the use of the term stream in Structure and Interpretation of Computer Programs by Abelson and Sussman.
In accordance with this naming convention the following procedures have been renamed:
| stream? | $&rarr#longrightarrow;$ | port? |
| input-stream? | $&rarr#longrightarrow;$ | input-port? |
| output-stream? | $&rarr#longrightarrow;$ | output-port? |
| interactive-stream? | $&rarr#longrightarrow;$ | interactive-port? |
| stream-read-table | $&rarr#longrightarrow;$ | port-read-table |
| stream-filename | $&rarr#longrightarrow;$ | port-name |
| make-output-width-stream | $&rarr#longrightarrow;$ | make-output-width-port |
| make-broadcast-stream | $&rarr#longrightarrow;$ | make-broadcast-port |