FlashMQ 1.4.0 has been released. It’s main change is a change in the plugin API, to allow access to the payload.
This release also marks the end of Ubuntu 18.04 support. The C++ level was upped to C++17, which is not available on (the compilers on) Ubuntu 18.04. Plus, Ubuntu 18.04 is about to be end-of-life, including Github Actions support for it.
As usual, debs and an AppImage are available for download.