v0.2.8

• File-type upload permissions (below, v0.2.7) are now granted per role instead of one instance-wide switch — a role can be given permission to attach documents, archives, and/or code files independently, same as any other permission like Manage Channels. Images are unaffected either way and remain uploadable by everyone regardless of role.
• Roles can now be edited after creation (name and permissions) — previously the only way to change a role's permissions was to delete and recreate it.