Having used version 194 from the Testing repository for a while with no issues what so ever and seeing that version 194 is now I took the plunge and reconfigured my IPfire to use the Stable repository and ran the consequent update using the WUI.
No problems 
.
.
Notes on my system approach:
- I only have one IPfire installation serving a RED - GREEN - ORANGE environment.
- Shorter (1-2 hours) black outs are not an issue as long as I plan them
- I run IPfire on Asus MINIPC PN42 with a NVMe SSD
- I have external SSD hardware capable of connecting to and cloning NVMe SSD
- I have 3 similar 128 GB NVMe SSD’s for my IPfire set-up (128 GB total overkill for my purpose, but the cheapest option at the time.)
- Before any major change/update I clone the present NVMe SSD for easy restore (Like shut down, change SSD and start up.)