Release 4.10.2 is a patch release to fix a bug in the content model of sp. The patch is needed because in the 4.10.0 and 4.10.1 releases, the speaker element was inadvertently required as a child of sp, when previously it was not. (#2758, PR #2759 (not merged), and PR #2760). The release notes for release 4.10.0 have also been revised to include information about the change introduced to the content model of sp.
Note: patch releases do not have codenames.