The upgrade of the EDO token to PNT occurred on June 18, 2020. Following a snapshot that identified all EDO token holders, PNT distribution was performed to all Ethereum addresses where an EDO balance was present. The distribution was done in a 1:1 mode, this means that for every EDO owned, 1 PNT was received.
Following the distribution, the utility and value of EDO were transferred to PNT, so the EDO token (now automatically hidden in the wallet and/or marked as old token) is unusable and not exchangeable on any platform.
For more information on upgrading the EDO token to PNT, you can refer to the following articles: