Is it possible to replace a transaction on the memory pool only increasing the network fee?

[lock9]

Hi,

Is it possible to replace a transaction that I had sent previously, with another one, with a higher fee?

Use case: I've sent a transaction, but due to changes in the 'prices', I want my transaction to be the first in the block. Is it possible to replace an existing transaction with another one with a higher network fee?

Thanks.

[shargon]

No, it's not possible

https://github.com/neo-project/neo/issues/1502

[roman-khimov]

"Conflicts" extension can make it possible, #1991.