Fixed a regression in Squish 6.6 which caused drag and drop operations to fail when executing tests on Windows.

Fixed abnormal program termination when calling squishserver --stop, even with no squishserver instance running.

Fixed a problem which caused the Squish IDE to show no objects in the Application Objects view when a breakpoint was reached. This issue occurred when executing Squish for Web test suites or in test suites which implicitly start the AUT instead of calling startApplication explicitly.

Resolved an issue in which the JavaScript function OS.system would not work as expected on Windows when executing commands involving non-Latin characters.

Fixed various cases in which incorrect script code for script-based object maps was generated when using Tcl.

Fixed an issue with leaking variables declared with let or const in the header from for-in or for-of loops.

Filename completion in Qt file dialogs was disabled for cleaner recordings and to avoid problems due to lost input focus with Qt 5.11 and later.

Fixed issues with picking objects in Qt 5.15 applications when using Squish on Windows.

Fixed a problem with hooking up Firefox on systems which would automatically change the Squish-specific startup URL from http://localhost/squish_extension_port_number to https://localhost/squish_extension_port_number.

Fixed a problem with nativeMouseClick, typeText and tab activation in Microsoft Internet Explorer with a website URL longer than 127 characters.

Improved support for newer versions of DevExpress Grid controls for WPF.