The final Meter 4.2.1 build is available as of July 14th, 2015.
Build number 4.2.1-621
Support for Alpine Linux
Boundary now provides apk packages of the meter for Alpine Linux 64-bit versions 2.5 and 2.7. These packages, along with the Boundary signing key, can be downloaded from https://alpine.boundary.com.
Windows installer uses previous values during upgrade
While Linux and UNIX upgrades have been re-using existing configuration values for long time, Meter's Windows Installer was showing default values, even if user has customized them before. It has been fixed in this version.
Stability Fixes and Improvements
This meter release contains a number of stability fixes (including several related to the Windows version of the meter), resource usage improvements, and debug enhancements to the 4.2.0 meter.
NOTE: the Windows 64-bit version of the Boundary Meter is temporarily unavailable due to additional effort required to support Luvit. For now, all Windows customers are required to use the Windows 32-bit meter, which will work fine on both 32-bit and 64-bit Windows, while we complete the required work to the Windows 64-bit Boundary Meter.