It doesn't seem like long ago that official support for FreeBSD 4.x was discontinued, but now FreeBSD 5.x has also
reached its end. This applies to
ports support as well. As a side note, FreeBSD 6.1 and 6.2 are no longer supported either.
I have used FreeBSD since 4.8 and I have to say that I am pleased with how the project has progressed over the past few years. FreeBSD 5.x was a groundbreaking series and the improvements made upon it in 6.x and beyond have been amazing. Here's to the future!