This update should address the availability issues we and others running counterparty-based services were occasionally seeing with counterparty-server when Bitcoin "stress tests" were ongoing.
We have an additional in testing right now that will make network reorgs not require a full reparse, instead being "rolled back" almost instantly. (Currently, counterparty-server currently needs to reparse the blockchain data on a reorg, which can cause availability problems as well.)
The tl;dr of this is that with these two updates, services built on counterparty-server should experience a resolution of any previous availability and stability issues. This will help the entire Counterparty ecosystem to be more robust as a whole.