I have not tried it out myself yet but let me summarized what is new from the article:

• Supports object-oriented programming (OOP) - Expert advisor (EA) programmers that are familiar with object-oriented concepts can design their program in that manner and achieve better software maintainability and reusability
• No Low[0] or iLow ( Symbol(), PERIOD_D1, 0 ) - Existing EAs that use these will have to change
• New MQL functions: OnTimer(), OnTrade(), OnChartEvent() - Suppose to ease development efforts and to improve interactivity
• Timeframe flexibility - More denominations of minute timeframes
• Data stored as a minute timeframe - The hourly charts, daily charts and all are derived from minute chart data
• Able to clear the logs