This release is an Installer update release.
The 188.8.131.52 release's x64 installer didn't include the Custom install option.
It adds detection for SQL 2014 SSIS.
Please download the x64 of x32 file based on the bitness of the SQL Server installation.
BIDS or SSDT/BI ARE NOT DETECTED.
A warning popup will be displayed when installing onto a workstation or server where SSIS is not detected. If this popup is shown, then installation will default to C:\Program Files(x86)\Microsoft SQL Server\nnn\DTS based on the bitness of the installation. You can override this location if desired by selecting the bitness, and clicking on Browse to select an alternate location.
You MUST use the Custom install, to install when the popup is shown, and select which versions of SQL Server are available.
I have been unable to find a reliable method of detecting BIDS, and where the installation location of the DLL's should be.