At the end of the day, before updating....
Think once, think twice and then THINK AGAIN!!!
Make absolutely sure you are updating drivers FOR THE RIGHT REASON, not because you have some blind problem with your software....
Having said that, in the audio world, Sound Card Driver updates are often worth updating but ALWAYS read the documentation before doing so and then make a well judged reason having read said documentation before updating and ALWAYS create a restore point.
Software is different however, The latest version can tempt you into updating and often charges a fee (Sonar X3, PT 11 for example)...But, again fundamentally the same rules apply, work out if you ACTUALLY need these updates.
If it aint broke, dont try and fix it, and if it is broke WORK OUT what is broken BEFORE you fix it.