Hi all, as i have said several times, unless you actually have a problem don't upgrade for the sake of upgrading...
I have three G450H routers... 24118 has worked without fault on two of them (Both EU/UK versions BTW); HOWEVER the US version of the G40H in my possession was bricked by the update and i am currently going through the lengthy and particularly technical process of un-bricking the thing...
For this reason i would reiterate DO NOT update to 24118 unless you have to fix a problem that cannot be fixed by reverting to an older revision than you currently have or by only going as far as 23919, i will always post once i have successfully got a revision to work on all three of my routers... Until then, and even when i do post, you update at your own risk as whilst the model may be the same there are always different hardware revisions and regional versions that means the update may not work for you... Only official Buffalo versions up to r20025 are guaranteed not to brick your router...
If you have a US router i would avoid risking it at all for now as i am unsure why 24118 works on the EU/UK versions but bricked my US router at present...
@crammed i have always said to RESET all settings to their factory default with an update... So if you want to try and retain settings you are welcome to try, but always be prepared for there to be issues further down the line... This could be anything from settings that do not work correctly or at all through to instant bricking of the router on update if a settings functionality is removed or changed drastically... For the sake of pen and paper and a few minutes copying settings over manually it's not worth the risk trying to retain settings...