Company news / Changes to MetaTrader 4 Caused by Build 600 Upgrade

Changes to MetaTrader 4 Caused by Build 600 Upgrade

The FXOpen Team

Dear Trader, FXOpen UK would like to inform you about the recent MetaTrader 4 (MT4) update to Build 600 (and subsequent versions) resulting in some important changes to the MQL4 data structure. As a consequence, folders for saving EAs have been moved. All EAs, Indicators, Scripts and Library files are now saved in different locations.

Please note the following:

To identify your MT4 build, click Help > About on your client terminal.

To access the folder with newly saved EAs data from your MT4 client terminal, click File > Open Data Folder to access this folder from your MT4 client terminal:

  • All the experts should be saved in the MQL4 > Experts folder;
  • All the indicators should be savedin the MQL4 > Indicators folder;
  • All the library files should be saved in the MQL4 > Libraries folder;
  • All the script files should be saved in the MQL4 > Scripts folder.

Latest from Company news

Trading Hours Schedule for the King's Birthday Holiday (Australia) Trading Hours Schedule for Late Spring Bank Holiday Trading Hours Schedule for Labour Day and Early May Bank Holiday (UTC+3) Easter 2026: Changes to Trading Hours Important Update for Professional Clients: Changes to Margin Requirements for Oil Instruments

Related articles

Company news

Trading Hours Schedule for the King's Birthday Holiday (Australia)

Dear Traders,

Please be advised of the following changes to the trading schedule in observance of the King's Birthday holiday in Australia (all times are GMT+3):

Monday, 8th June 2026

Index CFDs:

  • Australia 200 (#AUS200) – trading opens at 10:
Company news

Trading Hours Schedule for Late Spring Bank Holiday

Please note the changes to the trading hours schedule for the Late Spring Bank Holiday (all times are UTC+3).

Thursday, 21st May 2026

Index CFDs:

  • #HSI — trading until 22:00;
  • #UK100 — trading until 23:00.

Monday, 25th May 2026

Company news

Trading Hours Schedule for Labour Day and Early May Bank Holiday (UTC+3)

Please be aware of the upcoming changes to trading hours due to Labour Day and the Early May Bank Holiday in the UK (all times are GMT+3):

Thursday 30th April 2026

  • #HSI — trading until 22:00;
  • #FCHI, #GDAXIm, #ESX50
Get the FXOpen App
CFDs are complex instruments and come with a high risk of losing money rapidly due to leverage. 60% of retail investor accounts lose money when trading CFDs with this provider. You should consider whether you understand how CFDs work, and whether you can afford to take the high risk of losing your money.