What's Change in New ULogViewer

2026.1 RC

Added Sensitive Data Protection (SDP).
Added Model Context Protocol (MCP) support for AI clients.
Support shutting down the application by keyboard shortcut (Ctrl+Q on Windows/Linux, ⌘Q on macOS).

Improved user experience of phrase input assistance in text filter.
Prevented intercepting ⌘← / ⌘→ for tab switching when editing text on macOS.
Added a button on toolbar for updating application when new version is available.

Support filtering log profiles in the Select log profile dialog.
Support temporarily showing raw log lines even when log patterns are defined.
Support filtering logs by multiple log levels.
Support editing visible log properties of the current non-built-in log profile in the log viewer.
Changes to the width of the log property column in the log viewer will be saved to the log profile, including built-in profiles.
The pre-defined log level mapping will be used if no log level mapping is defined in the log profile.
Support applying the system text size to selected parts of the user interface on Windows and macOS.
Support using C# 14 as scripting language.
Support importing application data from an existing ULogViewer instance.

Allow reordering items in the Edit log profile, Edit operation duration analysis rule and Data source options dialogs by dragging with the mouse instead of using action buttons.
Improved indicators for required or invalid values in the Edit log profile, Data source options and more dialogs.
Improved user experience of the Select log profile dialog.
Improved user experience when using log chart.
Improved text highlighting for filtered logs in the log viewer.
Show the selected file name, command, IP endpoint, process ID/name, URL or working directory on the tab.
Added more default paths for searching commands.
Text used for log level mapping is now treated as case-insensitive.
All log levels will be available for filtering logs if no log level mapping is defined in the current log profile.

On Windows, the application will restart automatically after a system reboot without being closed first.
The Use compact layout option is no longer supported.
The application needs to be restarted if the Chinese environment changes after modifying the Language option.