packages    S V S_Old S_New V_Old  V_New 
 AER           * OK    OK    1.1-6  1.1-7 
 frailtypack   * OK    OK    2.2-14 2.2-16
 missMDA       * OK    OK    1.0    1.2   
 survey        * OK    OK    3.22-3 3.22-4
 xlsx          * OK    OK    0.2.3  0.2.4 
 helpr       * * <NA>  OK    <NA>   0.1   
 PoMoS       * * <NA>  ERROR <NA>   1.0