Release Notes: The fsuid code was removed, since it doesn't work when using ports greater than 1024. A bug which occurred when setresuid() was called with the wrong arguments in certain circumstances was fixed.
Release Notes: Major code cleanups were done. The -DBIG_SECURITY_HOLE compile-time option is no longer needed on Linux. The lsm_rsuid LSM kernel module can be used, which prevents root exploits.