Have there been any changes in this regard with the time of Bitcoin Core 0.16? Then it was done well and all OK nodes accepted the second transaction with a higher Commission first, and the old one was forgotten later and discarded
No...
RBF was rolled into Bitcoin Core in v0.12... which was
released in February 2016.
That's a full 2 years BEFORE v0.16 (
Feb 2018).
The thing is that RBF was, and still is,
Opt-In. You have to specify that you want your transaction to be RBF:
https://i.imgur.com/Zf1qkvA.pngYou can set it to default to this by using
walletrbf=1 in your bitcoin.conf file
Drop the RBF question. About Bitcoin core meant that there was enough to remove locally created trisakti, then create a new one with the new, larger Commission, that is, double-spending, and it is well conducted, and that the earlier discarded nodes then there will be a new one. I meant has the logic of the node changed now or has it remained the same in this plan