<li><b>0.4.6 (10/6/2012)</b>—Thanks to contributor John Bressler, rEFInd can now boot legacy (BIOS) boot loaders on many UEFI PCs. (Previously, rEFInd could do this only on Macs.) Other changes include a new <tt>scan_delay</tt> option that inserts a delay between rEFInd starting and disk scans (to help detect disks that are slow to appear to the firmware) and a change in the default <tt>scanfor</tt> value so that legacy OSes are detected by default on Macs (but not on PCs). I've also fixed some memory management problems that caused error messages to appear on some systems when rEFInd was compiled with the TianoCore EDK2 toolkit. Finally, I'm now using the TianoCore toolkit to make my primary binary builds, since the new UEFI legacy boot support requires the TianoCore environment. (rEFInd still builds with GNU-EFI, but it doesn't support booting legacy OSes on UEFI systems when built in this way.)</li>
<li><b>0.4.5 (8/12/2012)</b>—This version fixes a couple of Mac-related bugs. The most important is that version 0.4.3 and 0.4.4 couldn't boot BIOS-based (aka CSM or Boot Camp) OS installations; 0.4.5 restores this important feature. The second bug is in the <tt>install.sh</tt> script, which would often fail to detect rEFItBlesser, thus leaving it enabled and causing rEFInd to fail to start after the first reboot into OS X.</li>
<li><b>0.4.6 (10/6/2012)</b>—Thanks to contributor John Bressler, rEFInd can now boot legacy (BIOS) boot loaders on many UEFI PCs. (Previously, rEFInd could do this only on Macs.) Other changes include a new <tt>scan_delay</tt> option that inserts a delay between rEFInd starting and disk scans (to help detect disks that are slow to appear to the firmware) and a change in the default <tt>scanfor</tt> value so that legacy OSes are detected by default on Macs (but not on PCs). I've also fixed some memory management problems that caused error messages to appear on some systems when rEFInd was compiled with the TianoCore EDK2 toolkit. Finally, I'm now using the TianoCore toolkit to make my primary binary builds, since the new UEFI legacy boot support requires the TianoCore environment. (rEFInd still builds with GNU-EFI, but it doesn't support booting legacy OSes on UEFI systems when built in this way.)</li>
<li><b>0.4.5 (8/12/2012)</b>—This version fixes a couple of Mac-related bugs. The most important is that version 0.4.3 and 0.4.4 couldn't boot BIOS-based (aka CSM or Boot Camp) OS installations; 0.4.5 restores this important feature. The second bug is in the <tt>install.sh</tt> script, which would often fail to detect rEFItBlesser, thus leaving it enabled and causing rEFInd to fail to start after the first reboot into OS X.</li>