The Google Connectomics Team and our academic collaborators have publicly released FAFB-FFN1: a segmentation of an entire fly brain from the FAFB dataset (Zheng et al., 2018), for use in neuroscience and image processing research. We have also released a methods manuscript to accompany the dataset.
The current released segmentation is FAFB-FFN1-20200412. For earlier releases, see the Changelog.