Litecoin blockchain accidental fork

Not many know but on 25th of April, the Litecoin blockchain had a temporary chain split. This involved invalid MWEB transactions and a temporary chain split.

The biggest Litecoin miner, F2pool detected and notified the developers. They rectified the issue by mining on the valid Litecoin blockchain under the current consensus rules. Everything returned back to normal after 13-blocks of mining.

For the curious ones, the F2pool mined the blocks from 3,095,931 onward, that overtook the invalid Litecoin fork. Natural reorganization happened and made the main chain dominant again.

Had the F2pool not intervened during the time, it would have been catastrophic for the Litecoin as another (wrong) chain would become dominant resulting in another coin, harming the value of actual chain’s coin.

F2 pool rocks. Thank you for being awesome.

— Litecoin (@litecoin) April 28, 2026

Some blockchains are forked deliberately while some are accidental. Example of deliberate forks are Bitcoin Cash and Ethereum, which were forked from Bitcoin and Ethereum Classic respectively. Yes, the ETC is a main chain and Ethereum is not the oldest between the two.