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SimpleCom: all versions and old releases

Simple serial terminal for Windows console

10 versions of SimpleCom are listed here, from June 17, 2021 to the current 1.2.7. Each one links to the publisher’s own installer files.

2021: 1 1 21 2022: 0 22 2023: 4 4 23 2024: 3 3 24 2025: 2 2 25

10 versions over 4 years · about 2.4 a year

VersionDateSizeFiles
1.2.7Latest September 15, 2025 — 64-bit MSI
Release notes
Breaking Changes
SimpleCom would work as efficiency mode by default, so it causes to worse response on high-load system. You can run normal mode with --disable-efficiency-mode to avoid performance issue.
Full Changelog: v1.2.6...v1.2.7
1.2.6 July 26, 2025 — 64-bit MSI
Release notes
What's Changed
- Add batch mode #67 #68
- Refactoring stdin/out redirector
New Contributors
- @vedantmgoyal9 made their first contribution in #63
Full Changelog: v1.2.5...v1.2.6
1.2.5 November 2, 2024 — 64-bit MSI
Release notes
Breaking changes
- Do not send resize request to TTY resizer when window size was not changed
- TTY resizer does not keep to open TTY device - it would open in each time if it needs.
- Ignore Windows API errors if the peripheral is disconnected when auto reconnect is enabled
- Clear the console before establishing serial connection
Trivial changes
- Add error code into both error dialog and debug messages on the console
1.2.4 August 11, 2024 — 64-bit MSI
Release notes
Breaking changes
- Use DC2 (0x12) for marker char
- Open the TTY each time whether resize event is fired
- Resize event would be fired once even though a lot of input events (includes multiple resize events) are happened
New feature
- Show version number both help message in CLI and window caption in configuration dialog
Bug fix
- F1 key does not work on modern Windows 11
- Fix garbled characters in device name in configuration dialog
- Fix that UTF8 checkbox in configuration dialog did not affect
1.2.3 February 3, 2024 — 64-bit MSI
Release notes
Breaking changes
- F1 key is no longer propagate to peripheral
- Configuration textboxes for auto reconnect in setup dialog would be disabled when auto reconnect is disabled.
1.2.2 December 10, 2023 — 64-bit MSI
1.2.1 October 16, 2023 — 64-bit MSI
1.2.0 July 23, 2023 — 64-bit MSI
Release notes
New features
- Add --auto-reconnect command line option
- Reconnect to peripheral automatically when it is disconnected.
- You can set pause time before reconnecting and reconnect count.
See README.md for more details.
- Add --help #22
- Add TTY Resizer
Breaking changes
- Use 0x05 (ENQ) as a marker for TTY Resizer - if you enable TTY Resizer on SimpleCom, 0x05 means resize request, and it does not propagate to serial session.
- Any chars are not propagated to serial session when resize request is proceeding.
- Any chars are replaced to NUL when resize request is proceeding
1.1.0 March 18, 2023 — 64-bit MSI
Release notes
New features

- Add --show-dialog command line option
- Add --wait-serial-device command line option
- Support to enforce UTF-8 ( --utf8 command line option or check box on dialog)

Breaking changes

- Don't send NUL char to peripheral
- SimpleCom would end when peripheral would disconnect serial session (ERROR_OPERATION_ABORTED)
1.0.0 June 17, 2021 — 64-bit MSI

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