Dear all, I am pleased to announce the release of mplcairo 0.4. mplcairo is a Matplotlib backend based on the well-known cairo library, supporting output to both raster (including interactively) and vector formats. In other words, it provides the functionality of Matplotlib's {,qt5,gtk3,wx,tk,macos}{agg,cairo}, pdf, ps, and svg backends. Per Matplotlib's standard API, the backend can be selected by calling matplotlib.use("module://mplcairo.qt") or setting your MPLBACKEND environment variable to `module://mplcairo.qt` for Qt5, and similarly for other toolkits. mplcairo 0.4 adds support for Matplotlib 3.4, support for retrieving underlying cairo contexts, as well as the usual bugfixes over 0.3. Enjoy, Antony Lee