12.6 Other Changes

• The dynamic module loader recognizes the fact that different filenames point to the same shared library and loads the library only once, so you can have a single shared library that defines multiple modules. (SunOS / SVR4 style shared libraries only.)
• Jim Fulton's ``abstract object interface'' has been incorporated into the run-time API. For more detailes, read the files Include/abstract.h and Objects/abstract.c.
• The Macintosh version is much more robust now.
• Numerous things I have forgotten or that are so obscure no-one will notice them anyway :-)