Apple Releases Leopard 10.5.4,New MAC O.S

Apple recently releases the new version of Mac Leopard Operating System.They updated Leopard to 10.5.4.By releasing this O.S they arre trying to make new stand in the market and to make attraction of the buisness peoples.Apple's new MAC Os X 10.5.4. is their four update of its basic one.
The new version contains the usual mix of bug fixes and security updates, with iCal getting the most attention. iCal won't delete events without telling you as a result of the latest update. Apple said the update "improves overall iCal reliability.

U can update your mac leopard O.S from apples site.