I just went to find the hardcoded limit in case someone wants to post older data, they can temporarily edit the limit on their own emoncms instance and found it is 5 not 4 years.
Not quite five years because of leap years, of course, but that’s nit-picking
It was the need for that kind of jiggery-pokery that made me decide to write my own. But that will have to wait until we have a version that will run on my system.