I'm writing a short user-manual in English at work and need your help out there please.
where should I use the following:
Has been released.
"The company has released a new software last night"
"The company released a new software last night"
"The new software has been released last night"
"The new software was released last night"
thanks in advance
"The company released new software last night" wouldn't be relevant for very long. I might put it in an email but not in a user manual.