SeriesInformation ; Seventh International Particle Accelerator Conference 2016, IPAC 2016, Busan, Republic of South Korea, 8 May 2016 - 13 May 2016 ; 729-731(2016). ; Abstract ; FLASH, the superconducting free-electron laser at DESY delivers up to several thousand photon pulses per second with wavelengths ranging from 52 nm down to 4.2 nm and with pulse energies of up to 500 FLASH, the superconducting free-electron laser at DESY delivers up to several thousand photon pulses per second with wavelengths ranging from 52 nm down to 4.2 nm and with pulse energies of up to 500 $μ$J to photon users at the FLASH1 beamline. In 2014 and 2015 a second beamline, FLASH2, has been commissioned in parallel to user operation at FLASH1. FLASH produces bunch trains of up to 800 bunches in 0.8 ms with a train repetition rate of 10 Hz. Each train can be split in sub-trains for FLASH1 and FLASH2, such that both beamlines receive bursts of bunches with full 10 Hz. Operational highlights are the SASE energy record of 600 $μ$J at 15 nm in FLASH2, and the first simultaneous SASE lasing of three undulator systems: FLASH1 (13.7nm), sFLASH (38 nm), and FLASH2 (20 nm). sFLASH is the seeding experiment in the FLASH1 beamline. On April 8th 2016, FLASH has for the first time simultaneously served users at both beamlines, FLASH1 and FLASH2.$μ$J to photon users at the FLASH1 beamline. In 2014 and 2015 a second beamline, FLASH2, has been commissioned in parallel to user operation at FLASH1. FLASH produces bunch trains of up to 800 bunches in 0.8 ms with a train repetition rate of 10 Hz. Each train can be split in sub-trains for FLASH1 and FLASH2, such that both beamlines receive bursts of bunches with full10 Hz. Operational highlights are the SASE energy record of 600 $μ$J at 15 nm in FLASH2, and the first simultaneous SASE lasing of three undulator systems: FLASH1 (13.7nm), sFLASH (38 nm), and FLASH2 (20 nm). sFLASH is the seeding experiment in the FLASH1 beamline. On April 8th 2016, FLASH has for the first time simultaneously served users at both beamlines, FLASH1 and FLASH2.