I had an overnight outage a couple of weeks or so ago, whether or not if it was related to g.inp Ive no idea.
I'm not certain if the line card f/w version makes any difference to g.inp as there were different versions last time g.inp was rolled out.
If its a DSLAM configuration update for something such as DLM then it may not show up on the line card version.
iirc mine has been IFTN:0xb206 for years. However I note it now says
IFTN:0xb206 (178.6) / v0xb206
I can't recall seeing the 178.6 before.