Hi, due to an outdated(afaik) python-twisted version, it's not possible to build matrix-synapse in version 1.8x . Unlucky for all F37 users, matrix-synpase has 3 embargoed CVEs coming, which need fixing asap. As "releng" has shipped the last twisted update, I have no clue who could help here on the python side and upgrade the packages. Kai Hiller tries to cherry pick the required patches for synapse, but it would of course be better to build the newest synapse version for F37 too. ATM we can only workaround this by using the f38 packages for synapse and it's dependencies. AFAICT it's works without issues atm. This brings me to the question: whats the main issue for twisted here? best regards, Marius Schwarz