As of my knowledge cut off in 2021, it is difficult to determine which cryptocurrency has had a hard fork most recently, as new hard forks are constantly being created and implemented in the cryptocurrency world. However, some of the most recent hard forks in the cryptocurrency world include those of Ethereum, Ethereum Classic, and Monero, among others.
For example, the Ethereum network recently underwent a hard fork as part of its transition from proof-of-work (PoW) to proof-of-stake (PoS), creating two separate and incompatible versions of the network. The new version of the Ethereum network, Ethereum 2.0, has a focus on improved scalability, security, and energy efficiency.
Ethereum Classic, another popular cryptocurrency, recently underwent a hard fork in order to address a critical vulnerability in its code. The hard fork resulted in the creation of two separate and incompatible versions of the Ethereum Classic network, with the new version addressing the vulnerability and improving the security of the network.
Monero, a privacy-focused cryptocurrency, also recently underwent a hard fork in order to address a potential vulnerability in its code and improve the security of the network. The hard fork resulted in the creation of two separate and incompatible versions of the Monero network, with the new version addressing the vulnerability and improving the security of the network.
It is difficult to determine which cryptocurrency has had a hard fork most recently, as new hard forks are constantly being created and implemented in the cryptocurrency world. However, some of the most recent hard forks in the cryptocurrency world include those of Ethereum, Ethereum Classic, and Monero, among others, which have resulted in the creation of two separate and incompatible versions of the network in order to address vulnerabilities or improve the security and efficiency of the network.