IQOE Newsletter #12 is now available. It highlights a variety of continuing and new IQOE activities, including work of the IQOE Task Team on Low-cost Hydrophones for Research, Education and Citizen Science, the formation of an IQOE Working Group on the Global Hydrophone Network, follow-up for the first World Ocean Passive Acoustic Monitoring (WOPAM) Day, completion of the Ocean Sound Essential Ocean Variable Implementation Plan, expansion of the work of the Global Library on Underwater Biological Sounds (GLUBS) and the Open Portal to Underwater Soundscapes (OPUS), and launch of an IQOE Wikipedia page.