I need to install EW4.
I see there are two service packs SP1 and SP2 (released in 2011) for SP4.
However, since EW4 became free, it seems Microsoft released updated versions, including one this year, or so it seems to me from what info I found (please correct if this is not so).
Question is, the latest EW4 download from Microsoft, does it include SP1 and SP2? Or maybe installing the service packs is still needed?