Fixed slapd delta-syncrepl to ignore delete ops on deleted entry (ITS#9342)
Fixed slapd delta-syncrepl to be fully serialized (ITS#9330)
Fixed slapd delta-syncrepl MOD on zero-length context entry (ITS#9352)
+ Fixed slapd sessionlog to use a TAVL tree (ITS#8486)
Fixed slapd syncrepl to be fully serialized (ITS#8102)
Fixed slapd syncrepl to call check_syncprov on fresh consumer (ITS#9345)
Fixed slapd syncrepl to propagate errors from overlay_entry_get_ov (ITS#9355)
Fixed slapd syncrepl replace usage on single valued attrs (ITS#9295)
Fixed slapd-monitor fix monitor_back_register_database for empty suffix DB (ITS#9353)
Fixed slapo-accesslog normalizer for reqStart (ITS#9358)
+ Fixed slapo-accesslog to not generate new contextCSN on purge (ITS#9361)
Fixed slapo-syncprov contextCSN generation with empty suffix (ITS#9015)
OpenLDAP 2.4.53 (2020/09/07)