Changelog of Data Logger Suite - Version History

October 26, 2026

A new version 5.1.9 build 1026 of the All our data loggers software is now available.
- The program is more stable when you add, change, or delete configurations while data is coming in.
- The program starts a little faster with many configurations.
- Closing the program with many configurations is up to 10 times faster.
- Several problems with log files and passwords are fixed.
- More than 60 fixes in the plugins, many of them in the parsers for meters, controllers, and industrial devices.
- Almost every plugin now has automated tests.
- Plugins, in rare cases, could make a program hang.
- Settings windows with font lists open faster.
- Packet separators are now found in all cases, also when no split characters are set and when a CR/LF pair arrives in two parts.
- When a plugin cannot be loaded, the program log now says why.

September 10, 2026

AGG Software has released an update for Data Logger Suite, bringing it to version 3.1.7 build 910.
Improved SQL data source. Added support for newer database versions. Improved data reading on the first launch. Updated standard plugins to the actual version.

July 3, 2026

Ann: The new build of all our data loggers is available.
Fixed a regression bug with slow program loading. We've improved the OPC UA server security. Various small bugfixes in plugins.

June 15, 2026

Ann: New build 5.1.6 build 615 of All our data loggers is available.
We've improved all plugins (loading time, dialog opening time). Added Japanese, Korean, and Chinese (traditional) translations.

March 10, 2026

AGG Software has released an update for Data Logger Suite, bringing it to version 3.1.3 build 310.
Fixed a few memory leaks that mostly appear in initial setup procedures.

March 2, 2026

AGG Software has released an update for all our data loggers.
The previous version didn't open help files for some plugins.

February 20, 2026

Data Logger Suite 3.1.2 build 220 has been released.
A couple of fixes in DDE data source interface.

December 24, 2025

All our data loggers have been updated to version 5.1.2 build 1224.
The previous version may rarely fail with the "Application Error" system message when SQL Database Pro, Alarms Professional, or Excel Export Professional plugins are used.

December 8, 2025

All our data loggers comes with the following changes:
When you clear the list of active variables, the OPC server dialog window used to crash. We fixed that bug.

October 20, 2025

All our data loggers gets a couple small bugfixes.
Now, all our loggers close faster (it is mostly related to slow computers).

October 8, 2025

AGG Software has released an update for all our data loggers.
- Improved service mode: the console can now receive real-time data from certain plugins running in the service.
- Enhanced logging in the "create a new log file after a timeout" mode: after a restart, the program resumes the unique counter from the last value.
- The previous version didn't restore a configuration from a backup if a data source (e.g. a COM port) was absent in the system.

March 20, 2025

Data Loggers and all plugins have been updated.
We've updated SSL libraries to the latest version and improve security and compatibility with modern internet services.

February 6, 2025

Data logger Software update.
This is a maintenance release that fixes a number of minor, unimportant reported bugs.

January 7, 2025

Data Logger Software
Improved logging data to a file after filtering in all our data loggers.

December 11, 2024

Data loggers have been updated.
We've fixed a rare memory leak when the program works in the service mode with the attached console.
Fixed the "Parent window not found" error in the configuration window.

December 10, 2024

Data loggers have been updated.
We've fixed rare memory leaks that can affect all data parser plugins.

October 28, 2024

The update for our data logger software has been released.
This release fixes a bug with the summary statistics report.

October 24, 2024

Data loggers have been updated.
+ Improved performance in configurations with the significant number of plugins.
+ Refreshed user interface.
+ Code and size optimization in plugins.
+ Faster loading.

May 14, 2024

We've updated our data Logger software.
Now, all our data loggers can automatically create a configuration backup after any changes.
The logger holds backups for the last seven days.

April 16, 2024

Data Logger Suite 2.12.4 build 416
Some bugs related to the service mode have been fixed.

March 6, 2024

Data loggers have been updated.
All data loggers have been updates.
We've fixed a memory leak that can be obsessive in heavy loaded applications.

February 28, 2024

Data loggers have been updated.
Improved performance of the OPC UA server. Important if you have more than 100 tags.

August 7, 2023

Data loggers have been updated.
This is the minor maintenance update for our data loggers.

November 29, 2022

Data Loggers have been updated.
This release fixes a number of reported and internally discovered bugs.
Fixed a problem in the SQL Database Pro plugin that may cause the "Assertion failure" when data flow is too fast.

September 13, 2022

The Data Logger Suite software has been updated to version 2.11.5 build 913.
T We've fixed a bug when the OPC DA server plugin didn't initialize OPC tags when DLS started by an OPC client.

July 14, 2022

The update for our Data Logger software has been released.
The previous version deleted old log files after 10 days if you didn't specify another interval explicitly.

June 16, 2022

Data Logger Suite 2.11.3 build 614 has been released.
Added an option to enable a delay while exporting data from a MQTT data source.

June 14, 2022

A new version 2.11.3 build 614 of the Data Logger Suite software is now available.
We've added TLS security connection settings and an option to customize a connection ID to the MQTT data source.

May 27, 2022

Data Logger software have been updated.
We've improved the built-in OPC UA server.
Now, it supports encrypted connections.

November 5, 2021

Update for all our Data Logger Software is ready.
We've updated all our datalogger to provide compatibility with the latest security update in Windows 2019.
All other OS are not affected.

October 7, 2021

Data Logger Suite has been updated.
This release improves the MQTT data source plugin for a better compatibility with MQTT 3.1.1.

June 23, 2021

We've uploaded the maintenance release for all our Data Logger Software.
Some minor bugs have been fixed. We've added the Chinese translation.

September 18, 2020

The Data Logger Suite software has been updated to version 2.10.0 build 918.
We've added a possibility to specify a custom prefix for data values read from MQTT.
Previously, the program used a topic name as the prefix.
It can be too long or contain unwanted characters.

September 9, 2020

Data Logger Suite gets a couple small bugfixes.
The MQTT data source can automatically detect and decode JSON data in MQTT payloads.

August 8, 2020

Our Data Logger software has been slightly modified to version 4.5.1 build 807.
We've added the Arabic translation.
Also, we've updated some plugins to support right-to-left reading.
Several minor bugfixes in plugins.

July 10, 2020

Data Loggers Software have been updated.
OPC server didn't appear in the DCOM settings.

March 20, 2020

We have updated all our data loggers.
This is the maintenance release.
Several bugfixes have been made in plugins for all our data loggers.

September 11, 2019

The Data Logger Suite software has been slightly modified to version 2.9.4.
Now, the OPC server accepts reading for absent OPC tags but returns an empty value.
For example, after an OPC client launches the logger, but nothing is received yet.

March 28, 2019

Data Logger Suite gets a couple of updates.
Several performance improvements in the SQL and OPC DA data sources.

February 11, 2019

Our Data Loggers have been updated.
Added a possibility to send an internal program event to a selected configuration.

April 11, 2018

Data Logger software has been updated.
Fixed a problem with a potential deadlock and freeze in some filter plugins.

December 19, 2017

Data Loggers have been updates to a next minor version.
The new version includes updates parser with small interface improvements.

December 9, 2016

Just a minor update of all our Data Loggers.
All our Data Loggers and corresponding plugins have been updated.
This is a cumulative update with several bug fixes, leak fixes and improvements.

February 5, 2016

Ann: Our data logger have been updated.
Just a maintenance release. Some small bugfixes.

April 23, 2013

Ann: New builds of our Data Loggers are available.
We've fixed a problem with unexpected crashes in configurations with multiple data sources (several IP or COM ports, for example).

March 7, 2013

New version 2.5.5 build 307 of the Data Logger Suite program has been released.
We've fixed a problem with SQL data sources.
The previous version may crash if two or more configuration with the SQL data source are created.

January 29, 2013

Ann: Data Logger Suite 2.5.4 build 129 is available.
The DDE interface didn't connect to some DDE servers.

September 4, 2012

The Data Logger Suite software has been slightly modified to version 2.5.2 build 904.
We've added the SMS data source and several tutorials about SMS processing.

February 17, 2012

A new version 2.1.0 build 217 of the Data Logger Suite software is now available.
We've added the SQL interface.

October 19, 2011

A new version 2.0.11 build 1019 of the Data Logger Suite software is now available.
We've added the DDE interface. Now, you can export data from DDE servers to a MSSQL, MySQL or other database, or log to a file.