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A new version of Bitcoin Cash's Bitcoin ABC software presents some improvements to prevent chain reorganization. This is partly in response to the "attacks" that the network suffered after the tough setback at the start of this month, and partly to prevent a situation similar to what was seen in the Bitcoin Vision Cash Satoshi a few days after the fork.
According to the announcement, some new code will limit the effect that a reorganization, or emerging concurrent chains and potentially neutralizing previously made transactions, can have on a single customer.
"You may have read about several media reports that there are some miners who continue to threaten the BCH network with chain reorganizations, many consider this to be a threat to the fundamental functionality of the chain and to its use as peer-to-peer money. uncertainty that this causes for users, companies and the market in general. "
It seems that the method used to do this is by changing the parameters according to which the standard Bitcoin ABC clients will consider reorganizations. According to this commit, they must "have enough work accumulated". Furthermore, the child blocks will not be moved automatically.
Overall, with a number of other small improvements in this version, it will be really much harder for a longer upstart chain but with a different transaction record (a situation that may create chaos for the network over short intervals, but never actually damages the user portfolios) to take the upper hand. The default behavior of clients will no longer be in support of such chains by their nature.
"With this new version, you will know that transactions are immutable after 10 confirmations.This protection maintains deep reorganizations from the negative impact on you or your business".
This does not mean that reorganisations are impossible. It simply means that there are many more parameters that customers will consider when such reorgs will arise.
Another commit "automatically finalizes" the blocks after 10 confirmations. This is something like setting the blocks in the stone after the required number of confirmations nominally required, a situation that reorganizations can disprove by having a longer chain / more work.
According to a website that keeps pace with these things, less than 100 nodes have moved to 0.18.5 at the time of writing, with a majority still running at 0.18.2.
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