If you had coins on Bittrex they where Auto swapped a few weeks ago and you can not send thoughs coins back to a old NAV 1.0 wallet.
Remy_5 are any old wallets still running
Honestly, I do not know.
In the last hours I was in the new blockchain, to increase the number
of nodes in sync in the right fork and facilitate the stabilization of the network.
The two networks share the same ports, and if I now close the new wallet and
launch the old wallet, changing reference network, I should still continue to receive
connections from the nodes that they had seen me in the other network.
I believe that the new wallet shortly after the connection would reject me, but given
the situation, for the time being I would like to avoid mixing things and instead proceed
in the manner as clean as possible.
In the coming days, when there will be more peaceful conditions, I hope to be able to answer,
although Shahim definitely has a more clear vision of the old network nodes.
EDIT:
Some vague memories which I can't verify, a few days ago in the old blockchain I
thought I saw an old node yet to version 2.0.5, and another node with a newer
version, but that day after day remained locked and it could not go forward.
Who knows, maybe one of them is Yobit.