Frozonic allows development teams, hosting their projects on Github, to set up three different freeze checks to prevent undesired changes to be shipped at the wrong time. Fixed time checks, scheduled time checks and deltas checks. Both Fixed and Scheduled time checks allow repository admins to stablish a time when it is forbidden to merge changes into a specific target branch. The deltas freeze allows repo admins to set limits to pull request additions and deletions to enforce small-sized pull requests, this way these are kept short and easy to review.