The -z rescan option provides greater flexibility in specifying archive libraries to a link-edit. See Position of an Archive on the Command Line.
The -z ld32 and -z ld64 options provide greater flexibility in using the link-editor support interfaces. See 32–Bit and 64–Bit Environments.
Additional link-editor support interfaces ld_input_done(), ld_input_section(), ld_input_section64() and ld_version() have been added. See Support Interface Functions.
Environment variables interpreted by the runtime linker can now be established for multiple processes by specifying them within a configuration file. See the -e and -E options of crle(1).
Support for more than 32,768 procedure linkage table entries within 64–bit SPARC objects has been added. See SPARC: 64–bit Procedure Linkage Table.
The bss segment declaration directive makes the creation of a bss segment easier. See Segment Declarations.