Fuerst, J.D. Gluskin, E. Hasse, Q.B. Ivanyushenkov, Y. Kasa, M. Kesgin, I. Shiroyanagi, Y. Review of New Developments in Superconducting Undulator Technology at the APS JACoW Publishing Geneva, Switzerland 978-3-95450-206-6 10.18429/JACoW-FLS2018-MOA2PL03 English 1-5 MOA2PL03 ion undulator FEL storage-ring vacuum Contribution to a conference proceedings 2018 2018-06 https://doi.org/10.18429/JACoW-FLS2018-MOA2PL03 http://jacow.org/fls2018/papers/moa2pl03.pdf Superconducting undulator (SCU) technology offers the possibility of enhancing the magnetic field of undulators compared to other undulator technologies. It also allows for the fabrication of circular polarizing devices in addition to the planar undulators. Work on SCUs therefore continues in the light source community. Recent developments in SCU technology will be presented.