Thanks to Keith Furman for the tip: Netscape has released a new version of its Communicator 4.x browser suite, version 4.05. Communicator 4.05 fixes a preferences bug, some Composer issues, and includes numerous other small changes. For a complete list of changes, please refer to the release notes

The base install of Communicator 4.5 is roughly 11 MB big. The complete install is 16 MB, while the Professional Edition comes in at 18.6 MB. A standalone version of Navigator 4.05 is also available (8.5 MB). All of these versions are now available from the Netscape FTP site