Merry Christmas, Happy Holidays everyone!
Terragen 4.5.71 (Release) is now available. This is a bug fix update to v4.5.
Free Non-Commercial Edition: Use the Check for Updates feature in the application to get links to the latest 4.5 build.
Professional or Creative Edition: This version is available to anyone whose maintenance includes v4.5.x builds. That means you can use it even if your maintenance expired as long ago as the 1st of July, 2020. Use the Check for Updates feature in the application to get new builds.
Here's the change log: