• Lifted restrictions on retargeting lists that consist exclusively of rules with the NONE operator. Now these retargeting lists can use both Yandex.Metrica goals and segments, as well as Yandex.Audience segments.
• The MembershipLifeSpan parameter is now used only for Yandex.Metrica goals. For segments from Yandex.Metrica and Yandex.Audience, the add and update methods ignore the passed value.
• The maximum number of days in the MembershipLifeSpan parameter increased to 540.

Video ads are now supported in display campaigns:

• The AdGroups service now supports ad groups with the CPM_VIDEO_AD_GROUP type.

  Restriction. The Gather audience by completion rate setting is currently not supported in the API.

• The Ads service now supports ads with the CPM_VIDEO_AD type.
• The Creatives service now supports creatives with the CPM_VIDEO_CREATIVE type.

You can find more detailed information about managing display campaigns in the API in the documentation.