A new Internet Explorer 9 beta build version 9.0.8027.6000 has leaked to the web, originally reserved for close partners and TAP testers.
The leaked version includes bug fixes, stability improvements and the latest rendering engine seen in the recent developer Platform Preview. It appears, from the digital signature, that the build was compiled as recently as Nov'19. Microsoft's previous Platform Preview 7 build was labeled 9.0.8023.6000.
The new build doesn't appear to include any UI enhancements. Microsoft has updated its download manager so that it now displays the transfer speed without the need to hover over individual downloads. The updated beta also performs better on Microsoft's IE test drive site.