Thanks for all your feedback and advice guys.

I'm looking at keeping my bitcoins for the long term, so no worries about the naysayers for me.

I also use Electrum and cold wallets, so apologies for not explaining that up front.

I guess the main thing I was concerned about was the various forks and sweeping into new addresses.

Guessing the age of various addresses doesn't really come into it (in terms of them being old) thanks to the blockchain ledger.

Think I'll do an early spring clean on a live distro.

Cheers!

I bought bitcoin some time ago as an investment and am wondering if there's anything I need to do in regard to keeping my investment secure and/or up to date and what should I do in regard to the various forks that have happened over the past few years?

The reason I ask is that, I keep a watching brief on bitcoin and have seen various articles referring to recycling addresses so they don't get stale and also splitting larger bitcoins with just the one address, into smaller amounts in multiple addresses.

I've also seen various articles referring to bitcoin mixers, but then wonder about the legitimacy especially when there's related articles referring to laundering/washing.

Similarly, I also invested in Ethereum and have the same questions as above.

Would appreciate any advice.

Thanks in advance!