Introducing a new (internal) way to load AdSlots and to group those Slots together.
Grouping AdSlots is important for the AdServer to control which adSlots should deliver the same campaigns, or which AdSlots might have delivered a campaign that blocks another campaign from delivering (brand exclusivity, 100% share of voice campigns, etc)
Grouping of adslots is now more consistently solved in MetaTag. We just dont derive the possible intent of the website, but use further "clues" to cluster AdSlots together (time between registerSlot(), time to auction slots, adSlot features like LazyLoading, etc).
Publishers dont have to change anything, the new feature will work automatically.
For now we will roll out this new feature on very few sites to evaluate the impact. Only after further thorough testing we will apply the feature to more sites.
For the time, until all websites have been activated for feature, we will deliver around 2-3kb minified, redundant code, to have the possibility to switch to the new solution on the fly. As soon as the feature is activated over the whole network (probably mid to end-february) we will remove the redundant code.