Quote: "In the near future DMD Diamond will feature a second more complex and more secure address schema (far beyond what Bitcoin protocol offers) which will make it much harder for brute force quantumcomputer attack to be successful."
Will this affect the possibility to import old private keys from DMD v2?
Of course, we will have full compatibility of both wallet.dat files and private keys for import into a new wallet.
This was initially one of the most important points in the upgrade.
Just to be clear; you are saying that a future implementation of a more complex and secure address schema (to prevent brute force quantumcomputer attacks) still will correspond to the original private keys belonging to the original DMD v2 addresses?
About this point.
This issue is now in development.
As one of the options is considered a system in which there will be several addresses.
One standard (the same as now in version 2.0) and the other is more secure (with increased stability to quantum search).
The user himself will determine which of the addresses is more suitable for it.
In particular, it will be possible to transfer coins from a short address to a long one.
Old (short addresses) will gradually go out of circulation and will be replaced by more reliable and long ones.