Since I was working on one of these for a client today I thought I'd just share it 

1. Create install and configuration scripts/programs as needed
2. Check and configure settings for servers 
3. Verify installation and take README.TXT notes by installing system and running it on servers 
4. Create README.TXT with installation instructions for servers and clients 
5. Create a public known issues list. Check what User Documentation exists, and assemble it, so that we can assess 
6. Remove debug and test code from the software and set debug off
7. Once code is frozen set all versions of all software to the next major or minor release x.n.0.0
8. Tag and Branch the source code repository
9. Create the releasable software media. Everything from install script to executables and README.TXT and documentation in one place 
10. Virus scan all release media 
11. Remove and reinstall the final versions of the software on the Servers
12. Test
13. Sign Off