The Graduate Management Admission Council (GMAC)has announced a number of modification in GMAT. All the changes have been shown on the official website from July 19, 2015.
The changes declared by GMAC in GMAT are as follows:

Further in a report, Vice President, Ashok Sarathy said, "We continuously ask candidates and test takers about their GMAT experience and seek input from them about ways to make that experience better.This will help the aspirants to achieve more confidence and assurance over their GMAT experience by allowing them to cancel their scores without the cancellation appearing in score reports."
The Graduate Management Admission Test (GMAT) exam is a computer based evaluation that judges your verbal, mathematical, integrated reasoning, and analytical writing skills. The exam comprises of four sections which includes analytical writing assessment, integrated reasoning, quantitative and verbal.