Hi all, RIPE88 is coming up: the meeting will take place 20 -- 24 May. Once again, we are seeking your presentations for the next MAT WG session, scheduled on Tuesday, 21 May! Presentations for the WG session are preferably 10-15min long. Please include in your proposal: * a title * a draft copy of your proposed presentation; an outline is okay! * a paragraph describing the topic and why it is of interest to the community. Interesting topics include (but are not limited to): recent measurement research which has an operational impact; recent operational work that may open avenues to research; projects, tools, or datasets that support either operations or research. Please submit your presentation proposal by **Monday 29 April** by emailing us at mat-wg-chairs at ripe.net. We will make our selections and post the agenda soon after. RIPE meetings are fully hybrid with sessions facilitated through meetecho. We encourage presentations from anywhere; to help us plan, we'd appreciate it if you can indicate whether you are likely to be online or on-site. Please ask if you have any questions regarding the setup on either side. Thanks! Nina, Massimo, Stephen, as WG co-chairs