Thank you both.
I tend to leave well enough alone, but I should keep up to date with what is available.
History has taught that getting too far out of date causes issues when an upgrade is required. And of course just because I haven’t seen a serious issue yet doesn’t mean I am immune.
One specific issue I am having is occasional overvoltage errors from my pylontech us3000. Usually mid afternoon at peak solar output while battery is still charging.