---
title: "MetaTrader 5 build 2715: General improvements - Release Notes"
description: "Fixed UI display errors on HiDPI displays. - Release Notes"
image: "https://www.metatrader5.com/i/logo_metatrader5.png"
url: "https://www.metatrader5.com/en/releasenotes/terminal/2172"
---

# MetaTrader 5 build 2715: General improvements

## Fixed UI display errors on HiDPI displays

26 November 2020

### Terminal

1. Fixed platform freezing when using the [options board](https://www.metatrader5.com/en/terminal/help/trading/options_board). Freezing could be caused by a zero tick size specified in trading instrument settings.
2. Fixed UI display errors on HiDPI displays.

### MQL5

1. Fixed string to time conversion by the [StringToTime](https://www.mql5.com/en/docs/convert/stringtotime) function. An error could occur when specifying time as "yyyymmdd [hhmiss]".
2. Fixed operation of implicit copy operator for objects containing dynamic arrays. Now, the operation reduces the destination object size to the copied object size.

   ```
   struct MyStruct {   string Array[]; }; void OnStart() {   MyStruct a1,a2;   ArrayResize(a1.Array,3);   ArrayResize(a2.Array,1);   a1=a2; }
   ```

   Earlier, the "a1" array size was equal to 3 after the function call. Now, the size will be 1.

### MetaTester

1. Updated rating calculation algorithm for [MQL5 Cloud Network](https://cloud.mql5.com/en) testing agents. The rating is now determined more accurately and is changed less frequently.

Documentation has been updated.

**Earlier publications:**

- [MetaTrader 5 Platform Build 2690: MetaEditor improvements](https://www.metatrader5.com/en/releasenotes/terminal/2168)
- [New MetaTrader 5 platform build 2650: Background chart loading and MQL5 code profiler improvements](https://www.metatrader5.com/en/releasenotes/terminal/2163)
- [MetaTrader 5 build 2615: Fundamental analysis and complex criteria in the Strategy Tester](https://www.metatrader5.com/en/releasenotes/terminal/2157)
- [MetaTrader 5 build 2560: Built-in learning system improvements](https://www.metatrader5.com/en/releasenotes/terminal/2151)
- [MetaTrader 5 build 2530: Sorting in Market Watch and advanced operations with optimization results](https://www.metatrader5.com/en/releasenotes/terminal/2146)