The MediatR Migration: Navigating a Library Licensing Change - Alan Barber

Location Details

We'll are at Central Insurance this month in Bridge Park, Dublin. Central Insurance owns the top two floors of the building, so take advantage of any of the free parking garages at Bridge Park and then head up to floor 4 of the building.

Important time note: Please plan on arriving between 5:30 and 6:00 as the elevators lock after 6 and you'll need to message us and we'll need to come get you.

The building address is 4450 Bridge Park
The entrance is 6620 Mooney St, Suite 400

YouTube Live Stream
- Link will be provided day of the event -

The MediatR Migration: Navigating a Library Licensing Change

When a widely-used open source library suddenly changes its license, it can feel like the rug's been pulled out from under your build pipeline. In this talk, we’ll look at how to deal with that kind of disruption—using MediatR’s recent shift to a commercial model as a timely example. We’ll explore several ways to adapt: deciding to just pay and move on, pinning to the last free version and hoping for the best, forking the code and taking maintenance into your own hands, trying out alternative libraries (some with reflection, others with shiny new source generators), or going full rogue and building your own from scratch. Along the way, we’ll dig into the trade-offs—effort, performance, long-term sanity—and give you a practical, no-panic framework for dealing with licensing surprises when they hit your stack.