There were some new Linux Distributions that came out in 2017. From what I am reading 2018 seems to be the year of making things more stable in the world of Linux. What I see as the rule with Linux is that the distribution is going to be determined by what your needs are. In other words if it for children then you might want Doudou, Sugar On A Stick, Edubuntu as well as others. I would check out this website at 9 Most Beautiful Linux You Need To Use. My best advise is to do some searching on the internet and search youtube as well. There are tons of excellent websites with awesome information.
Now as far as Ham Radio and Linux go there does not seem at this point to be too many changes in 2018. I still see Linux Ubuntu and Andy's Ham Radio around from 2017, which is still a very good program packed with programs for us Ham Radio Operators. Here is a list below of it's excellent features.
- Live medium which can be installed to the hard drive or USB thumb drive
- icewm window manager
- Contains a large number of amateur radio programs
- Amateur Radio menu customized for ease of use
- Nothing proprietary (as far as I know)
- Most software came directly from the Ubuntu repositories
- Software defined radio receiver with RTL2832 USB dongle
- Micro-Fox Config GPL and TinyTrak3 Config GPL
- GNU Radio Companion and gqrx
- FreeDV (free digital voice)
- Packet radio software linpac and AX25
- pskmail client and server
- digital radio mondiale
- Learn CW via the Wordsworth method