A new system called the Evoloution of combat was added to the live game in November of 2012, it changed the entire combat system completely.
Also to answer your question the new maximum combat level is 200 yes, this is because there is a new combat calculation sytstem.
The highest of your Attack, Strength, Magic, Summoning, or Ranged level
added together then your Defence level plus 2.
And if you would like my opinion on it all, it's rubbish ! aha.
If you want to know anything else, just ask.