What is a 'Hardfork'?

A Hardfork, in relation to blockchain technology, is a change to the protocol that makes previously invalid blocks. This requires all nodes or users to upgrade to the latest version of the protocol software. Put simply a Hardfork is a permanent divergence from the previous version of the blockchain (nodes running the  previous version will no longer be accepted by the new version). This is where the "fork" comes in. One path follows the new upgraded blockchain, and the other continues down the old path.

Monero Forks:

Below is a list of Monero forks and Hardforks that MyMonero does not accept. MyMonero does not accept these forks due to the previously mentioned divergence. Where XMR has been following the new path, these following forks have stayed on old path, as each fork creates a "new" path.

 - Monero Original (XMO)
 - Monero 0 (ZMR)
 - Monero Classis (XMC)
 - MoneroV (XMV)

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