Changelog of Advanced Serial Port Monitor - Version History
- October 28, 2026
- AGG Software has released an update for Advanced Serial Port Monitor, bringing it to version 4.7.4 build 1028.
We've improved the help file, translations, and error messages while the program installs a spy driver (for better compatibility with Windows 11). - July 3, 2026
- Advanced Serial Port Monitor gets a couple of updates.
1. We've significantly improved the MODBUS slave simulation plugin (new interface, storing registry maps to CSV files, new simulation modes).
2. We've fixed some minor bugs in the ASCII/Binary device simulation plugins. - May 15, 2026
- The Advanced Serial Port Monitor software has been slightly modified to version 4.7.2 build 515.
Continuation of optimizations. The new version starts noticeably faster. It handles data better at high speeds. - April 17, 2026
- Advanced Serial Port Monitor 4.7.1 build 417 has been released.
1. Improved translations in many languages.
2. Added translations for some of the most popular plugins.
3. Added the "MODBUS Scan" plugin, which can scan for MODBUS RTU or ASCII devices on the bus.
4. Added the "Test Sequence" plugin to implement test sequences without scripting, with success/fail statistics.
5. Various small bug fixes and improvements. - February 18, 2026
- Advanced Serial Port Monitor 4.6.1 build 218 has been released.
This update fixes some small "bugs". - February 2, 2026
- AGG Software has released an update for Advanced Serial Port Monitor, bringing it to version 4.6.1 build 202.
Fixed two memory leaks. - January 14, 2026
- Advanced Serial Port Monitor 4.6.1 build 114 has been released.
- The program now starts faster when multiple plugins are used.
- The last used plugins are now saved and loaded on the next startup.
- Improved performance in data decoding.
- Significant performance improvements in data logging.
- The program can now add the time difference from the previous data packet to a timestamp.
- Added a new plugin with a customizable panel featuring 24 buttons. By clicking a button, you can send any data packet.
- Added an option to create a new log file when a defined signature is found in incoming data.
- Added a hotkey to clear the data window.
- The ASCII table window was improved. It now includes short descriptions for some codes and allows inserting a selected code into the input field.
- Other minor improvements and bug fixes. - March 24, 2025
- Advanced Serial Port Monitor 4.5.0 build 324
- Refreshed the GUI (new icons).
- Fixed problem with the "TAB" ASCII character in scripts.
- Added a window with all ASCII characters in various numeric formats.
- Improved exporting the screen content to RTF and HTML files.
- Added a possibility to copy HEX data to Clipboard separated with spaces or 0x.
- Other minor fixed and improvements. - May 27, 2022
- Advanced Serial Port Monitor 4.4.21 build 527
Added: The program automatically updates the port list when new COM port devices appear in the system.
Fixed: The "Options" dialog appeared under the main windows if the "Stay on top" option is on. - December 7, 2021
- Advanced Serial Port Monitor 4.4.20 build 1207
We've fixed a problem while calculating a data packet length and added a couple of interface improvements. - May 12, 2021
- Advanced Serial Port Monitor 4.4.19 build 512
We've updated plugins.
Added shortcuts to the Scripter plugin.
Now, the program saves a sent data to a history list when you click the Send button. - May 7, 2021
- Advanced Serial Port Monitor 4.4.19 build 507
We've improved handling of a situation when a USB-COM port converter disappears from a system when the program works with it. - April 18, 2019
- Advanced Serial Port Monitor 4.4.17 build 418
This release fixes several reported and internally discovered bugs.
Also includes speed improvements in the Spy mode. - October 24, 2018
- Advanced Serial Port Monitor 4.4.16 build 1024
We've fixed a bug with timestamps in a log file name. - July 28, 2018
- Advanced Serial Port Monitor 4.4.15 build 728
We've fixed a bug with saving a screen content to RTF. - May 24, 2018
- Advanced Serial Port Monitor 4.4.14 build 524
UI improvements (copy data from the HEX view to the input string), ASCII and Binary data emulation plugins were updated. - March 5, 2018
- Advanced Serial Port Monitor 4.4.13 build 302
The previous version did not export colors of saved screen content to RTF or HTML files. - July 7, 2017
- Advanced Serial Port Monitor 4.4.11 build 707
This version includes some minor bugfixes. - February 17, 2017
- Advanced Serial Port Monitor 4.4.10 build 217
We've fixed few bugs in the scripting engine. - September 15, 2016
- Advanced Serial Port Monitor 4.4.9 build 915
1: Old version may detect LPT ports as COM ports.
2: In some rare cases ASPM sent data from an input strings instead of a file data source. - July 13, 2016
- Advanced Serial Port Monitor 4.4.8 build 713
[+] You can load a log file with captured data into the monitoring window.
[+] The program can display state or RTS and DTR signals in the Spy mode (if these signals are controlled programmatically). - April 23, 2016
- Advanced Serial Port Monitor 4.4.7 build 423
There are few bug fixes and options dialog improvements. - February 24, 2016
- Advanced Serial Port Monitor 4.4.6 build 224
We've fixed a bug with displaying of line ending characters. - July 29, 2015
- Advanced Serial Port Monitor 4.4.5 build 729
We've fixed few rare bugs and updated our software for Windows 10. - December 29, 2014
- AGG Software has released an update for Advanced Serial Port Monitor, bringing it to version 4.4.3 build 1229.
We've fixed few small bugs. - May 19, 2014
- Advanced Serial Port Monitor 4.4.1 build 519 has been released.
We've fixed the problem with multi monitor systems and the "Font and Colors" dialog. - April 11, 2014
- Ann: Advanced Serial Port Monitor 4.4.0 build 411 is available with several changes.
We've improved the program to work with removable COM ports (USB, Bluetooth).
It will not hang when a COM disappears unexpectedly. - February 26, 2014
- Ann: New build 4.3.11 build 226 of Advanced Serial Port Monitor is available.
Just a maintenance update with small bug fixes. - December 25, 2013
- Ann: Advanced Serial Port Monitor 4.3.10 build 1225 is available with several changes.
We've improved the program interface and the German translation. - December 18, 2013
- Advanced Serial Port Monitor 4.3.9 build 828 has been released.
We've added the Turkish translation. - October 7, 2013
- Ann: New build 4.3.9 build 828 of Advanced Serial Port Monitor is available.
Added the Latvian translation. - August 30, 2013
- Ann: Advanced Serial Port Monitor 4.3.9 build 828 is available.
We've added the Danish translation. - July 23, 2013
- A new version 4.3.8 build 723 of the Advanced Serial Port Monitor software is now available.
We've added the Hungarian translation. - October 29, 2012
- AGG Software has released an update for Advanced Serial Port Monitor, bringing it to version 4.3.7 build 1029.
We've added the Greek translation and fixed a rarely bug with plugins. - May 4, 2012
- A new version 4.3.6 build 504 of the Advanced Serial Port Monitor software is now available.
We've added the Croatian translation.
Small bugfixes that are related with this translation. - April 6, 2012
- Ann: Advanced Serial Port Monitor 4.3.5 build 406 is available with several changes.
We've added Japanese and Chinese translation.
Few rarely bugs have been fixed. - March 18, 2012
- The Advanced Serial Port Monitor software has been slightly modified to version 4.3.5 build 318.
The inconsistent behavior of the input box has been fixed (when the Enter key is pressed). - February 24, 2012
- A new version 4.3.4 build 222 of the Advanced Serial Port Monitor software is now available.
We've added the Arabic translation. - January 23, 2012
- A new version 4.3.3 build 123 of the Advanced Serial Port Monitor software is now available.
We've fixed a problem with slow output in the HEX window when using the "Spy" mode. - January 16, 2012
- Ann: New build 4.3.2 build 1212 of Advanced Serial Port Monitor is available.
We've added the Dutch translation.
The Spanish translation is slightly changed. - December 30, 2011
- A new version 4.3.2 build 1212 of the Advanced Serial Port Monitor software is now available.
We've added the Italian translation. - December 12, 2011
- AGG Software has released an update for Advanced Serial Port Monitor, bringing it to version 4.3.2 build 1212.
We've fixed a bug in the "Dual ports" mode.
The previous version was not being highlighted outgoing data. - December 2, 2011
- Advanced Serial Port Monitor 4.3.2 build 1202 has been released.
We've added the Spanish translation. - October 26, 2011
- The Advanced Serial Port Monitor software has been slightly modified to version 4.3.1 build 1006.
The Swedish translation has been added. - October 5, 2011
- The Advanced Serial Port Monitor software has been updated to version 4.3.1 build 1005.
We've added Polish and Brazilian translations. - September 13, 2011
- Advanced Serial Port Monitor 4.3.1 build 913 has been released.
The previous version "lost" bytes in the spy mode at high bauds. - September 8, 2011
- Advanced Serial Port Monitor 4.3.1 build 908 has been released.
We've improved performance in the spy mode at high baudrates. - August 19, 2011
- The Advanced Serial Port Monitor software has been slightly modified to version 4.3.1 build 819.
We've optimized the spy driver for better performance at high baud rates. - August 1, 2011
- AGG Software has released an update for Advanced Serial Port Monitor, bringing it to version 4.3.1 build 725. The new version of the software includes the following changes:
1. Three new plugins: Binary protocol simulation, File transfer, Replay log (https://www.aggsoft.com/serial-port-monitor/plugins.htm)
2. Added: the "New session" dialog.
3. Added: the "Dual ports" mode that allows to capture data exchange between 2 external devices with help of special cable.
4. Added: RTS/CTS signals logging.
5. Added: German and French translations
6. Now the program can send CRC after a data packet (CRC16, CRC32, Modbus CRC).
7. Interface changes.
8. Some small bugfixes.
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