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- You may now install the SP to any location you wish, rather than being forced to use C:\opt\shibboleth-sp (though this is still recommended for consistency).
- Most shared components are now installed to Program Files\Shibboleth and ProgramData\Shibboleth. Most files deployers are familiar with remain in the same relative locations, so these changes should be mostly invisible to you.
- The 64-bit install now contains both 32-bit and 64-bit binaries and you can switch architectures after installation (but not run both at the same time). When using a 64-bit OS, you MUST use the 64-bit installer now; the 32-bit installer will refuse to run to ensure this.
As of V2.5.5 (forthcoming), the The Windows installer now actually contains a fourth version field that indicates the patch level within a particular SP release. Initially 0, it will be incremented if patches to software included with but not part of the SP need to be updated (e.g., OpenSSL). Subsequent patch level installers will upgrade older versions.
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