To offer an opposing viewpoint - if you feel more comfortable, after 2 1/2 years, go for the 1.4 certification.
Both are still equally valid, and as you can see from folks in this forum, there are still plenty who are going for that version of the exam. You can always come back later and update to the newer
test when you feel more comfortable with the features of the newer version.
The major questions to ask yourself are: What is your timeline for sitting for the exam? Does your employer/potential employers have a preference for one version over the other? Do you feel that you can learn the features for the newer test in the amount of time you have available?
Just weigh the options, the pros and cons, and figure out which option best helps you accomplish the goals you have for yourself.