Here are the list of SOAP improvements:

New types
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+ RemoteEntity //superclass for users and groups used for PermissionSchemes
+ RemoteGroup
+ RemoteUser
+ RemotePermission
+ RemoteScheme
+ RemotePermissionScheme

Changed Types
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• RemoteProject
  + RemoteScheme issueSecurityScheme;
  + RemoteScheme permissionScheme;
  + RemoteScheme notificationScheme;

New features
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• IssueService
  + void deleteIssue(User user, String issueKey)

• ProjectService
  + RemoteProject createProject(User user, String key, String name, String description, String url, String lead, RemotePermissionScheme permissionScheme, RemoteScheme notificationScheme, RemoteScheme issueSecurityScheme)
  + RemoteProject updateProject(User user, RemoteProject rProject)
  + void deleteProject(User user, String projectKey)

+ SchemeService
+ public RemoteScheme[] getNotificationSchemes(User admin)
+ public RemotePermissionScheme[] getPermissionSchemes(User admin)
+ public RemoteScheme[] getIssueSecuritySchemes(User admin)
+ public RemotePermission[] getAllPermissions(User admin)
+ public RemotePermissionScheme createPermissionScheme(User admin, String name, String description)
+ public RemotePermissionScheme addPermissionTo(User admin, RemotePermissionScheme permissionScheme, RemotePermission remotePermission, RemoteEntity remoteEntity)
+ public RemotePermissionScheme deletePermissionFrom(User admin, RemotePermissionScheme permissionSchemeName, RemotePermission remotePermission, RemoteEntity remoteEntity)
+ public void deletePermissionScheme(User admin, String permissionSchemeName)

• UserService
  + RemoteUser createUser(User admin, String username, String password, String fullName, String email)
  + void deleteUser(User admin, String username)
  + RemoteGroup getGroup(User admin, String groupName)
  + RemoteGroup createGroup(User admin, String groupName, RemoteUser user)
  + RemoteGroup updateGroup(User admin, RemoteGroup group)
  + void deleteGroup(User admin, String groupName, String swapGroupName)