Reading about spending own generated unconfirmed change some time ago I stumbled upon this reddit thread that convinced me that doing so is a really bad idea and could prove catastrophic for any business that allows it.
Now in the bitcoin core 0.9.0 release notes there are some fixes regarding the infamous malleability issue (search for text: "Transaction malleability-related fixes").
My question is pretty straightforward:
- Is it now safe to spend unconfirmed change generated by my own txs, after the 0.9.0 upgrades?
- If not, what is considered to be a safe number of confirmations for this change before I can use it as an input for another tx?