Let me summarize give you a couple of pointers to help you get ready to deploy:
- What's New Presentation - http://www.lbenitez.com/2013/03/replay-of-ibm-connections-45-launch.html
- IBM Connections 4.5 Documentation - http://www-10.lotus.com/ldd/lcwiki.nsf/xpDocViewer.xsp?lookupName=IBM+Connections+4.5+documentation#action=openDocument&content=catcontent&ct=prodDoc
- IBM Connections 4.5 System Requirements - http://www-01.ibm.com/support/docview.wss?uid=swg27037782
- IBM Connections 4.5 Plug-in for IBM Notes 9 - http://www.lbenitez.com/2013/03/new-ibm-connections-plug-ins-for-ibm.html
- Planning your upgrade to IBM Connections 4.5 - http://www-01.ibm.com/support/docview.wss?uid=swg21626551
- Redbook: Installing and deploying IBM Connections - http://www.redbooks.ibm.com/abstracts/tips0994.html?Open
Now, I'm curious to know who will be the first to go into Production with 4.5