Nym Mailer v0.1.3 with new GUI layout released. Please note the binaries under Releases are signed with yubisigner and the .sig files are time stamped with opentimestamps.org. Additionally and eIDAS certified yusisigner signing key .pdf is included, so that the Nym community can be 100% sure the binaries come from me. 
Please note: Now the source code is also secured, with a new function in yubisigner, which creates a merkle-tree.txt file, also signed with yubisigner and additionally time stamped, so that third parties can not manipulate the source code.
Hope you like!