Try versioning as a new state

*** 116,126 ****
          SVP_CS_ERROR            = 0x00,
          SVP_CS_INITIAL          = 0x01,
          SVP_CS_CONNECTING       = 0x02,
          SVP_CS_BACKOFF          = 0x03,
          SVP_CS_ACTIVE           = 0x04,
!         SVP_CS_WINDDOWN         = 0x05
  } svp_conn_state_t;
  
  typedef enum svp_conn_error {
          SVP_CE_NONE             = 0x00,
          SVP_CE_ASSOCIATE        = 0x01,
--- 116,127 ----
          SVP_CS_ERROR            = 0x00,
          SVP_CS_INITIAL          = 0x01,
          SVP_CS_CONNECTING       = 0x02,
          SVP_CS_BACKOFF          = 0x03,
          SVP_CS_ACTIVE           = 0x04,
!         SVP_CS_WINDDOWN         = 0x05,
!         SVP_CS_VERSIONING       = 0x06
  } svp_conn_state_t;
  
  typedef enum svp_conn_error {
          SVP_CE_NONE             = 0x00,
          SVP_CE_ASSOCIATE        = 0x01,
*** 345,354 ****
--- 346,356 ----
  extern void svp_remote_reassign(svp_remote_t *, svp_conn_t *);
  extern void svp_remote_resolved(svp_remote_t *, struct addrinfo *);
  extern void svp_host_queue(svp_remote_t *);
  extern void svp_query_release(svp_query_t *);
  extern void svp_query_crc32(svp_req_t *, void *, size_t);
+ extern id_t svp_id_alloc(void);
  
  /*
   * Shootdown related
   */
  extern void svp_remote_shootdown_vl3(svp_remote_t *, svp_log_vl3_t *,