The recent sensational news on bounded gaps between primes made me wonder: what is the status of Yitang Zhang's earlier arXiv preprint [On the Landau–Siegel Zeros Conjecture][1] on Landau–Siegel zeros? If this result is correct, then (in my opinion) it is even bigger news for analytic number theory. Has anyone checked this paper carefully?


  [1]: https://arxiv.org/abs/0705.4306