The value of property ProductVersion in the MSI of V2.7.6 is set to 2.7.61003.0.
The value of property ProductVersion in the MSI of V2.7.7 is set to 2.7.7.1000.
This means that the MSI of V2.7.7 refuses to install over an existing installation of 2.7.6, claiming that the installed version is newer then the one attempted to install (61003 > 7).
I totally support fixing broken ProductVersions, but this fix means trouble and should have been postponed until a change in the minor version (assuming that it ever) happens.
The value of property ProductVersion in the MSI of V2.7.6 is set to 2.7.61003.0. The value of property ProductVersion in the MSI of V2.7.7 is set to 2.7.7.1000.
This means that the MSI of V2.7.7 refuses to install over an existing installation of 2.7.6, claiming that the installed version is newer then the one attempted to install (61003 > 7).
I totally support fixing broken ProductVersions, but this fix means trouble and should have been postponed until a change in the minor version (assuming that it ever) happens.