We don't keep older free versions available for download anymore. However they can still be found on other web-sites. Just make sure you are using a reputable site and the files you are downloading are safe. Sharing the freeware versions with family/friends/colleagues is also perfectly legal.
Software licences cannot be changed retroactively. In other words, the versions that were freeware stay freeware, even if future versions of that software are no longer free.