Honeycomb sculpture installed on Googleplex

Yesterday, a Honeycomb sculpture was installed at Google Headquarters in Mountain View, near building number 44.

Honeycomb - as you know, the name of version 3.0 of the Android platform, which translates as "honeycomb" (each version is assigned its own code name on the dessert). In addition to the honeycomb itself, a bee and an Android robot are shown face to face.

Sculptures of previous versions nearby are brought together:
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Can you recall the names of all, respectively? :)