Hi Solene, Thank you for the patch! Solene Rapenne via Guix-patches via writes: > This fixes the DoS [CVE-2021-29471] and many other improvements > > I didn't try it, I don't have a matrix server. synapse > 1.30 needs a newer python-cryptography (I think >=3.4) at runtime, so I think this version would not run on current guix. (My homeserver runs guix synapse, but from my channel...) Regards mike -- Life begins where fear ends. - Osho