Due to a change in the security policy of the University of Miami, tool authors can no longer be given StarExec Miami accounts. Therefore, tool submission for CoCo 2026 is no longer done by uploading solvers directly to StarExec. Instead, please package your solver as in previous years, so that it can be run on StarExec Miami, and submit the resulting archive to the CoCo SC. Since attaching solver archives directly to emails may cause them to be rejected by mail-system filters, we recommend using a file sharing service and sending the corresponding download link to the CoCo SC. The SC will be responsible for running your tools as expected. The easiest way to package your solver is to prepare a single archive containing the following files: bin/ -- directory containing the executables needed by your solver bin/my_tool bin/starexec_run_default -- the wrapper script that calls your tool starexec_description.txt -- a short description of your tool Please note that the contents must not be contained in an additional folder, that is, the archive needs to extract to bin/my_tool as opposed to mytool/bin/my_tool. Please do not add version numbers or years to the solver name in starexec_description.txt. See the section about solvers of the user guide https://github.com/StarExecMiami/StarExec/blob/b34216b356c2c6aa3644fa39467c544d1baee3ef/WebContent/public/StarExecUserGuide.pdf for more information on the expected StarExec solver format. If you registered for multiple categories and need to use your tool with different configurations, you can either add multiple bin/starexec_run_config wrapper scripts or submit multiple solver archives. In any case please indicate in the description the intended category for each solver/configuration. For tools that team up with a certifier, you should no longer submit the certifier yourself. Instead, in the description of your tool and/or configuration indicate the certified categories you want to participate in (e.g. "TRS+CeTA", "COM+FORTify"). In the certified categories it is expected that your tool produces output, where the first line is the answer (YES/NO/MAYBE) and the remaining lines contain the certificate. For example: YES/NO ... CPF3-output or FORTify-certificate ... For tools that internally produce CPF2 certificates, we expect that they run the corresponding converter to CPF3 themselves, which is available at https://isafor-ceta.uibk.ac.at/cpf3.html Tool submission will be open until July 1 (AoE).