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This is the eighth release in the Ceph Mimic stable release series. Its sole
purpose is to fix a regression that found its way into the previous release.
Due to a missed backport, clusters in the process of being upgraded from
13.2.6 to 13.2.7 might suffer an OSD crash in build_incremental_map_msg.
This regression was reported in https://tracker.ceph.com/issues/43106
and is fixed in 13.2.8 (this release). Users of 13.2.6 can upgrade to 13.2.8
directly – i.e., skip 13.2.7 – to avoid this.