We are pleased to announce PlantCyc 9.5, which fixes a bug in PlantCyc (version 9.0), which was released in September 5, 2014. This bug was caused by internal ID conflict affected only P. patens and C. papaya enzyme annotations in PlantCyc (9.0). Overall, the incorrect annotations accounted for about 2% of total enzyme annotations in PlantCyc (9.0). We have now fixed the problem in PlantCyc 9.5. Also released is an updated PapayaCyc 3.5 with new internal IDs.