Bitcoin ABC version 0.27.7 is now available from:
https://download.bitcoinabc.org/0.27.7/
This release includes the following features and fixes:
fees.ancestor, fees.descendant, descendantcount, descendantsize,
ancestorcount and ancestorsize fields from the getrawmempool,
getmempoolentry, getmempoolancestors and getmempooldescendants were
deprecated since v0.27.0 and have been completely removed.