Learning is for life
Learning no longer ends when you complete your qualification. Most recruiters believe that you should update your knowledge and skills regularly. Some even believe that a qualification is valid only for two years! It is certainly true that you cannot afford to ignore new developments in software, management theories, scientific and engineering techniques and so on.
Perhaps you are considering changing career because you feel that the job has changed around you and that you no longer have the necessary skills and knowledge to perform well. If this is the case, a change of career may not solve the problem - you may find equal pressure for constant updating in other professions too.
Go to the section I want information about further training or postgraduate study to consider the other issues.