FCLite Changelog

Dec 9th, 2025 Product Update, Version: 1.3.3

Bug released

Fixed NullPointerException and OutOfMemory errors that occurred when simultaneously canceling mass history queries on the Core instruments.

Nov 14th, 2025 Product Update, Version: 1.3.2

Bug released

Fixed a NullPointerException that occurred when querying history when using cancelHistoryRequest.

Oct 23th, 2025 Product Update, Version: 1.3.1

Bug released

Add the ability to run "subscribe instruments" and "get history" commands in different threads (long term solution).
Fixed constant re-subscription for subscribed instruments after TestRequest.
Fixed the issue where the "Session Expired" message would reappear after logging in again.

Sep 22th, 2025 Product Update, Version: 1.3.0

Feature released

Updated the 'IPriceHistoryManager' interface: added return value for the 'getPrices' method and added new method 'stopCommand'.

May 13th, 2025 Product Update, Version: 1.2.44

Bug released

Vulnerabilities found by Trading View were fixed.

Feb 27th, 2025 Product Update, Version: 1.2.43

Bug released

Fixed calculation AnyDeal comm for SSCFD.

Nov 18th, 2024 Product Update, Version: 1.2.42

Feature released

Optimization of calculation logic for Positions Summary Snapshot command.

Oct 28th, 2024 Product Update, Version: 1.2.41

Feature released

Add the ability to include/not include weekends when receiving historical data.

Aug 27th, 2024 Product Update, Version: 1.2.40

Bug released

Remove comparison from the subscription command.

Jul 23th, 2024 Product Update, Version: 1.2.39

Bug released

FCLite doesn't return an error immediately if the request is not sent successfully (The client sends a request to 'gethistory' and if the request is not sent successfully (loose connection, or something else) then API will not return an error immediately but will wait for data from the MW and return time_out error).

Jun 26th, 2024 Product Update, Version: 1.2.38

Feature released

Assign the trading terminal as the default terminal for request price history and add the ability to change terminal to MDT for request price history.

Jun 19th, 2024 Product Update, Version: 1.2.37

Feature released

Add support RID99 for logged using SSO token.

Jun 14th, 2024 Product Update, Version: 1.2.36

Feature released

Snapshots Improvements with CMD 99.

May 31th, 2024 Product Update, Version: 1.2.35

Feature released

Change the terminal to 'get history request' from trading session to MDT session.
Sentry - DXFeedConnection state code changed to 0 with error 402::session_unknown.
Add sending test-request for trading session.

May 24th, 2024 Product Update, Version: 1.2.34

Feature released

Adding MDT subscriptions recovery (The client should send a test request to each MDT at intervals).

Apr 15th, 2024 Product Update, Version: 1.2.33

Feature released

If commission UI flag is set to N, return 0.00 in all commission requests.

Feb 28th, 2024 Product Update, Version: 1.2.32

Bug released

Execute logout command when MDT session is not established or when the MDT session was corrupted and trade session reconnect is required.

Feb 8th, 2024 Product Update, Version: 1.2.31

Feature released

CORS optimization

Feb 1st, 2024 Product Update, Version: 1.2.30

Bug released

Add processing of repeated candles in the response from dxfeed

Jan 23th, 2024 Product Update, Version: 1.2.29

Bug released

Fixed an issue in Min Quantity calculation

Jan 17th, 2024 Product Update, Version: 1.2.28

Bug released

Session state hangs in 'connecting' state after response MDT
Commission doubled after refresh AccountCommissionsManager

Jan 11th, 2024 Product Update, Version: 1.2.27

Feature released

FCLiteAPI Update Crypto-JS package version to 4.2

Bug Released

Sporadic transition of the session from connected to the reconnecting state when sending the keepAlive or rakeOut commands return errors.

Dec 26th, 20233 Product Update, Version: 1.2.26

Feature released

Ability to subscribe to changes for market state
Increase the timeout for comands: refresh 'account commissions', refresh 'leverage profiles'

Bug Released

'Session expired' is not processed for MDT (MDT does not reconnect)

Dec 18th, 2023 Product Update, Version: 1.2.25

Bug released

Fixed an issue in price history response processing for DxFeed instruments on large flow

Nov 20th, 2023 Product Update, Version: 1.2.24

Bug released

Application state does not reset between login attempts when hosts.jsp does not respond

Nov 6th, 2023, 2023 Product Update, Version: 1.2.23

Feature released

Implemented possibility of getting cross symbols for the desired symbol
Added Java sample of getting rollovers

Oct 30th, 2023, 2023 Product Update, Version: 1.2.22

Feature released

Implemented possibility of running the library in a Web Worker

Table of Contents
core The section describes the classes and packages of the API
Glossary The Glossary for the FCLite API documentation
Feedback and Bug Reports The article teaches how to provide useful feedback and bug reports.

Related Sections
Installation The section describes how to install the API
Getting Started The section describes how to get started working with API
Trading with FCLite Trading with FCLite
Common Resources The section contains common information related to trading.