Just a few days following the huge Build 1860 update, MetaQuotes has released a major fix version for MT5 - Build 1870. It focuses on correcting the bugs and adding one important feature: Trading symbols (currency pairs) can now be searched by ISIN (International Securities Identification Number) in the Market Watch window. This simplifies dealing with unconventional symbol naming when brokers add various prefixes and postfixes to traditional currency pair names. Fixed a user interface slowdown when changing account password. Fixed WebRequest function behavior when using custom HTTP headers. Fixed Bars function when requesting a number of bars for the time period with matching start and end times. Fixed launch of a visual test following a forward optimization in Strategy Tester. Fixed sorting of optimization results when there are non-results due to incorrect input parameters passed. Fixed generic optimization graph recalculation upon switching the optimization criteria. Fixed some other bugs and errors. MetaQuotes' release announcement is available here: https://www.mql5.com/en/forum/260950/ If you find a bug or some undocumented feature in the new build, please post about it here.