Illumina have discontinued the version 1 of the NextSeq chemistry. Launched in January of last year the NextSeq was a revolutionary new sequencer, although not everyone was an immediate fan. The V2 chemistry was launched just before AGBT and the data certainly looked a lot closer to the quality we expected from the longer-lived 4-colour SBS chemistry. The V1 discontinuation notice arrived in my InBox today, just 18 months after the NextSeq launch.
That's not much longer than the shelf-life of a kit!