ksh 93u+m/1.0.1
This is an urgent bugfix release that removes an incorrect exec optimization that was capable of terminating the execution of scripts prematurely in certain corner cases. It is known to make the build scripts of GNU binutils produce corrupted results if ksh is used as /bin/sh. See #507 for more information.
No other breakage resulting from this bug is known yet, but other breakage probably exists. Every 1.0.0 user should update to 1.0.1 ASAP.
Full Changelog: v1.0.0...v1.0.1