Django migrations lock file. This helps us avoid migration conflicts on master. If you have a conflict in this file, it means that someone has committed a migration ahead of you. To resolve this, rebase against latest master and regenerate your migration. This file will then be regenerated, and you should be able to merge without conflicts. admin: 0002_logentry_remove_auto_add auth: 0008_alter_user_username_max_length contenttypes: 0002_remove_content_type_name jira_ac: 0001_initial nodestore: 0001_initial sentry: 0103_project_has_alert_filters sessions: 0001_initial sites: 0002_alter_domain_unique social_auth: 0001_initial