6.7.0 (2026-01-06)$$$$$$Using Inno Setup commercially? Please purchase a license.$$$$$$Custom wizard background colors and images$$$Setup now allows you to specify a custom background color and optionally also a background image. This supports blending the color and image with each other; and optionally supports using a separate background color and image if dark mode is active.$$$$$$Custom background colors are also supported by Uninstall.$$$$$$These changes are backward compatible: if you do not set any of the new directives; then your installers and uninstallers will look the same as before.$$$$$$Added new WizardStyle modifier excludelightcontrols. Disables custom styling of all controls (including buttons) when a light style is active; except when styling is required to achieve transparency.$$$Added new WizardStyle modifier hidebevels. Hides all bevels (horizontal lines) across Setup and Uninstall; except those in native system dialogs.$$$Added new [Setup] section directives WizardBackColor and WizardBackColorDynamicDark to specify custom background colors to use for wizard pages and all other windows such as the Select Language dialog; in both Setup and Uninstall.$$$If you set this directive but a custom style is not specified by WizardStyle; it will automatically activate custom style windows11 with modifier excludelightcontrols.$$$Added new [Setup] section directives WizardBackImageFile and WizardBackImageFileDynamicDark to specify custom images to display as the background of wizard pages in Setup; but not in Uninstall.$$$Supports specifying multiple files for high-quality results on all DPI settings.$$$If you set this directive but a custom style is not specified by WizardStyle; it will automatically activate custom style windows11 with modifiers excludelightcontrols and hidebevels.$$$Note that in light mode; the windows11 custom style uses an off-white background color. To revert this; set WizardBackColor to white.$$$Example screenshot of Setup using a background image in dark mode; at 150% DPI.$$$Example screenshot of Setup using a background image in light mode; at 150% DPI.$$$Example screenshot of a task dialog using a background color; at 125% DPI.$$$[Setup] section directives WizardImageFile and WizardSmallImageFile can now be set to blank values when you want the background image (or color) to stand on its own. Doing so does not change the layout of the wizard.$$$Alternatively; set WizardImageOpacity to blend these images with the background image (or color). Can be used with the built-in wizard images as well.$$$Added new [Setup] section directive WizardBackImageOpacity to specify the opacity (non-transparency) of the background image.$$$This is useful if you want to use an identical regular and DynamicDark background image.$$$$$$Pascal Scripting: Added new support function WizardSetBackImage to set; update; or remove the background image at runtime. It can be used not only in Setup; but also in Uninstall.$$$See the new help topic for an example; and see new function BackImageButtonOnClick in CodeClasses.iss for another example.$$$Compiler IDE improvements$$$Autocomplete now cuts [Setup] section directive lookup time; and #include tabs are more manageable; even in large projects.$$$$$$Added autocomplete support in the [Setup] section for directive values with fixed options; such as all yes/no directives and others like WizardStyle.$$$The Compiler IDE now opens up to 50 #include files in tabs; instead of up to 20.$$$Added a new Keep new #include files closed option; disabled by default.$$$When enabled; newly discovered #include files during compilation remain closed until you explicitly reopen their tabs via; for example; the View menu.$$$Added new Go to File menu item to the Edit menu to go to a file (Ctrl+F12 or Ctrl+P).$$$When opening a file that is an #include file of the current main file using the Open menu item of the File menu; the IDE now offers to go to its tab instead of opening it as the new main file.$$$Ctrl+W now closes the current t

6.6.1 (2025-11-20)$$$Changes related to custom styles:$$$Previously; when displaying any RTF text with a custom style active (including the built-in custom dark style); all foreground colors were replaced by the styles foreground color. This has been improved to only replace default foreground colors; preserving any custom colors.$$$Added new [Setup] section directive WizardImageOpacity to specify the opacity of wizard images. This is useful if you want to use identical regular and DynamicDark wizard images. For example; you can set it to 150 to achieve partial transparency. Defaults to fully opaque (non-transparent).$$$The compiler now stores identical regular and DynamicDark wizard images only once.$$$Documentation fix: The prototype of Pascal Scripting support function CreateCustomForm was changed in the previous version; but its documentation was not updated accordingly. This has now been corrected.$$$Security improvement:$$$Added new [Files] section flag notimestamp; preventing the file from being stored with a timestamp. Use this flag to help make builds reproducible; even if you are unable to preserve timestamps on source files.$$$Other minor improvements.$$$$$$Refer - https://jrsoftware.org/isdl.php

6.6.1 (2025-11-20)$$$Changes related to custom styles:$$$Previously; when displaying any RTF text with a custom style active (including the built-in custom dark style); all foreground colors were replaced by the styles foreground color. This has been improved to only replace default foreground colors; preserving any custom colors.$$$Added new [Setup] section directive WizardImageOpacity to specify the opacity of wizard images. This is useful if you want to use identical regular and DynamicDark wizard images. For example; you can set it to 150 to achieve partial transparency. Defaults to fully opaque (non-transparent).$$$The compiler now stores identical regular and DynamicDark wizard images only once.$$$Documentation fix: The prototype of Pascal Scripting support function CreateCustomForm was changed in the previous version; but its documentation was not updated accordingly. This has now been corrected.$$$Security improvement:$$$Added new [Files] section flag notimestamp; preventing the file from being stored with a timestamp. Use this flag to help make builds reproducible; even if you are unable to preserve timestamps on source files.$$$Other minor improvements.$$$$$$Refer - https://jrsoftware.org/isdl.php

Inno Setup 6.6 and other recent versions introduced a large number of significant enhancements including:$$$$$$6.6: Added support for dark mode and custom styles to Setup and Uninstall.$$$6.6: Updated the default font to 9-point Segoe UI.$$$6.5: Increased the maximum size for a single Setup.exe to 4 GB; which is the maximum Windows supports.$$$6.5: Added support for using .png wizard images.$$$6.5: Auto reloads in the Compiler IDE; improving integration with tools like Claude Code; and allowing undo after reload.$$$6.5: Improved archive extraction; including support for .zip and password-protected archives.$$$6.5: Improved file downloads; no [Code] needed anymore.$$$6.5: New signature-verification capability: download; verify and extract using a single [Files] entry.$$$6.5: Full dark mode support for the Compiler IDE; and improved support for high-contrast themes and screen readers.$$$6.5: Support for encryption of the entire installation.$$$6.4: New strong encryption algorithm and updated LZMA SDK.$$$6.4: Many more Compiler IDE improvements; including match selection; parameter hints; improved autocompletion; section folding; change history and optional Visual Studio Code-style shortcuts.$$$6.3: Support for Arm64 systems improved; and related enhancements.$$$6.3: Support for logging the output of executed programs or batch files.$$$6.3: Support for UTF-8 encoded files without a BOM.$$$6.3: Many Compiler IDE improvements; including multiple selection support.

Inno Setup 6.6 and other recent versions introduced a large number of significant enhancements including:$$$$$$6.6: Added support for dark mode and custom styles to Setup and Uninstall.$$$6.6: Updated the default font to 9-point Segoe UI.$$$6.5: Increased the maximum size for a single Setup.exe to 4 GB; which is the maximum Windows supports.$$$6.5: Added support for using .png wizard images.$$$6.5: Auto reloads in the Compiler IDE; improving integration with tools like Claude Code; and allowing undo after reload.$$$6.5: Improved archive extraction; including support for .zip and password-protected archives.$$$6.5: Improved file downloads; no [Code] needed anymore.$$$6.5: New signature-verification capability: download; verify and extract using a single [Files] entry.$$$6.5: Full dark mode support for the Compiler IDE; and improved support for high-contrast themes and screen readers.$$$6.5: Support for encryption of the entire installation.$$$6.4: New strong encryption algorithm and updated LZMA SDK.$$$6.4: Many more Compiler IDE improvements; including match selection; parameter hints; improved autocompletion; section folding; change history and optional Visual Studio Code-style shortcuts.$$$6.3: Support for Arm64 systems improved; and related enhancements.$$$6.3: Support for logging the output of executed programs or batch files.$$$6.3: Support for UTF-8 encoded files without a BOM.$$$6.3: Many Compiler IDE improvements; including multiple selection support.

6.5.4 (2025-09-24)$$$$$$Fix: Pascal Scripting: Using event function CurInstallProgressChanged would result in runtime errors.

6.5.4 (2025-09-24)$$$$$$Fix: Pascal Scripting: Using event function CurInstallProgressChanged would result in runtime errors.

6.5.4 (2025-09-24)$$$$$$Fix: Pascal Scripting: Using event function CurInstallProgressChanged would result in runtime errors.

6.5.2 (2025-09-10)$$$$$$Thank you to everyone who has already purchased a commercial license! Your support is very important to our ongoing development.$$$$$$Improved graphics$$$Its now possible to use .png files in Setup and Uninstall; and use of transparency has been increased.$$$$$$Added support for .png files to [Setup] section directives WizardImageFile and WizardSmallImageFile.$$$Improved support for stretching 32-bit .bmp files with transparency.$$$The built-in wizard images and icons now have transparent backgrounds; allowing their background colors to be customized again using Setup section directives WizardImageBackColor and WizardSmallImageBackColor; which are no longer obsolete.$$$The default values of these directives match previously used colors; so the appearance of all images and icons remains unchanged by default.$$$Pascal Scripting:$$$Added new TPngImage support class.$$$Added new PngImage property to support classes TBitmapButton and TBitmapImage.$$$Removed main size limits$$$The size limit of 2 GB for a single Setup and for disk slices has been removed.$$$$$$The maximum size for a single Setup without disk spanning has increased from almost 2 GB to nearly 4 GB; which is near the maximum Windows supports.$$$However; disk spanning is still recommended for large executables due to slow startup times imposed by Windows; especially when the executables are digitally signed.$$$With disk spanning enabled; the maximum disk slice size has been increased from almost 2 GB to effectively unlimited (9223 PB).$$$The default disk slice size is still 2100000000; which is almost 2 GB. To update; you can simply set [Setup] section directive DiskSliceSize to max.$$$Improved downloading and archive extraction$$$All download functionality now supports TLS 1.3 when available. Support for TLS 1.0 and 1.1 has been removed on all versions of Windows.$$$Archive extraction now supports the RAR5 format. Requires Setup section directive ArchiveExtraction to be set to full.$$$Compiler IDE: The New Script Wizard and the Generate [Files] Entries tool now support adding files to be downloaded. They will prompt you if the downloaded file is an archive that should be extracted.$$$Fix: Using [Files] section flags download and extractarchive on an entry that also has a Tasks parameter now works as expected.$$$Other changes$$$Compiler IDE:$$$Added new Automatically reload files and Allow Undo after reload options. Both are enabled by default; consistent with most other modern editors; and improving integration with tools like Claude Code.$$$Added dark mode support for command line options /cc and /wizard.$$$Pascal Scripting: Added new HighContrastActive and LogFmt support functions.$$$Minor tweaks and fixes.

6.5.2 (2025-09-10)$$$$$$Thank you to everyone who has already purchased a commercial license! Your support is very important to our ongoing development.$$$$$$Improved graphics$$$Its now possible to use .png files in Setup and Uninstall; and use of transparency has been increased.$$$$$$Added support for .png files to [Setup] section directives WizardImageFile and WizardSmallImageFile.$$$Improved support for stretching 32-bit .bmp files with transparency.$$$The built-in wizard images and icons now have transparent backgrounds; allowing their background colors to be customized again using Setup section directives WizardImageBackColor and WizardSmallImageBackColor; which are no longer obsolete.$$$The default values of these directives match previously used colors; so the appearance of all images and icons remains unchanged by default.$$$Pascal Scripting:$$$Added new TPngImage support class.$$$Added new PngImage property to support classes TBitmapButton and TBitmapImage.$$$Removed main size limits$$$The size limit of 2 GB for a single Setup and for disk slices has been removed.$$$$$$The maximum size for a single Setup without disk spanning has increased from almost 2 GB to nearly 4 GB; which is near the maximum Windows supports.$$$However; disk spanning is still recommended for large executables due to slow startup times imposed by Windows; especially when the executables are digitally signed.$$$With disk spanning enabled; the maximum disk slice size has been increased from almost 2 GB to effectively unlimited (9223 PB).$$$The default disk slice size is still 2100000000; which is almost 2 GB. To update; you can simply set [Setup] section directive DiskSliceSize to max.$$$Improved downloading and archive extraction$$$All download functionality now supports TLS 1.3 when available. Support for TLS 1.0 and 1.1 has been removed on all versions of Windows.$$$Archive extraction now supports the RAR5 format. Requires Setup section directive ArchiveExtraction to be set to full.$$$Compiler IDE: The New Script Wizard and the Generate [Files] Entries tool now support adding files to be downloaded. They will prompt you if the downloaded file is an archive that should be extracted.$$$Fix: Using [Files] section flags download and extractarchive on an entry that also has a Tasks parameter now works as expected.$$$Other changes$$$Compiler IDE:$$$Added new Automatically reload files and Allow Undo after reload options. Both are enabled by default; consistent with most other modern editors; and improving integration with tools like Claude Code.$$$Added dark mode support for command line options /cc and /wizard.$$$Pascal Scripting: Added new HighContrastActive and LogFmt support functions.$$$Minor tweaks and fixes.

6.5.2 (2025-09-10)$$$$$$Thank you to everyone who has already purchased a commercial license! Your support is very important to our ongoing development.$$$$$$Improved graphics$$$Its now possible to use .png files in Setup and Uninstall; and use of transparency has been increased.$$$$$$Added support for .png files to [Setup] section directives WizardImageFile and WizardSmallImageFile.$$$Improved support for stretching 32-bit .bmp files with transparency.$$$The built-in wizard images and icons now have transparent backgrounds; allowing their background colors to be customized again using Setup section directives WizardImageBackColor and WizardSmallImageBackColor; which are no longer obsolete.$$$The default values of these directives match previously used colors; so the appearance of all images and icons remains unchanged by default.$$$Pascal Scripting:$$$Added new TPngImage support class.$$$Added new PngImage property to support classes TBitmapButton and TBitmapImage.$$$Removed main size limits$$$The size limit of 2 GB for a single Setup and for disk slices has been removed.$$$$$$The maximum size for a single Setup without disk spanning has increased from almost 2 GB to nearly 4 GB; which is near the maximum Windows supports.$$$However; disk spanning is still recommended for large executables due to slow startup times imposed by Windows; especially when the executables are digitally signed.$$$With disk spanning enabled; the maximum disk slice size has been increased from almost 2 GB to effectively unlimited (9223 PB).$$$The default disk slice size is still 2100000000; which is almost 2 GB. To update; you can simply set [Setup] section directive DiskSliceSize to max.$$$Improved downloading and archive extraction$$$All download functionality now supports TLS 1.3 when available. Support for TLS 1.0 and 1.1 has been removed on all versions of Windows.$$$Archive extraction now supports the RAR5 format. Requires Setup section directive ArchiveExtraction to be set to full.$$$Compiler IDE: The New Script Wizard and the Generate [Files] Entries tool now support adding files to be downloaded. They will prompt you if the downloaded file is an archive that should be extracted.$$$Fix: Using [Files] section flags download and extractarchive on an entry that also has a Tasks parameter now works as expected.$$$Other changes$$$Compiler IDE:$$$Added new Automatically reload files and Allow Undo after reload options. Both are enabled by default; consistent with most other modern editors; and improving integration with tools like Claude Code.$$$Added dark mode support for command line options /cc and /wizard.$$$Pascal Scripting: Added new HighContrastActive and LogFmt support functions.$$$Minor tweaks and fixes.

6.5.1 (2025-08-18)$$$Downloads are now performed from a secondary thread; just as was first introduced for archive extraction in the previous version. This ensures Setup stays responsive; even if the system fails to report progress.$$$Fix: Using the /CC command line option of the Compiler IDE to compile a script no longer causes an error.$$$Minor tweaks.

6.5.1 (2025-08-18)$$$Downloads are now performed from a secondary thread; just as was first introduced for archive extraction in the previous version. This ensures Setup stays responsive; even if the system fails to report progress.$$$Fix: Using the /CC command line option of the Compiler IDE to compile a script no longer causes an error.$$$Minor tweaks.

6.5.1 (2025-08-18)$$$Downloads are now performed from a secondary thread; just as was first introduced for archive extraction in the previous version. This ensures Setup stays responsive; even if the system fails to report progress.$$$Fix: Using the /CC command line option of the Compiler IDE to compile a script no longer causes an error.$$$Minor tweaks.

6.4.3 (2025-05-03)$$$$$$Compiler IDE change: The editor now restores selections on undo and redo.$$$Inno Setup now includes a new command-line tool; ISSigTool.exe. This tool is designed to sign files using ECDSA P-256 cryptographic signatures. Compil32; ISCC; and ISCmplr use these signatures to verify a number of DLL files before loading them. This is a technology preview that is subject to change (e.g.; any signatures you create now may have to be recreated when upgrading to the next version).$$$Note: ISSigTool.exe does not replace Microsofts signtool.exe in any way and is in fact not related to Authenticode Code Signing at all.$$$Fix: Autocomplete support for parameter names in the [Components] and [Dirs] sections was broken since 6.1.1.$$$Fix: Pascal Scripting support function Extract7ZipArchive which was introduced by 6.4.0 would fail with error 11 on older versions of Windows; at least Windows 8.1 and Windows Server 2016.$$$Minor tweaks and documentation improvements.

6.4.3 (2025-05-03)$$$$$$Compiler IDE change: The editor now restores selections on undo and redo.$$$Inno Setup now includes a new command-line tool; ISSigTool. This tool is designed to sign files using ECDSA P-256 cryptographic signatures. Compil32; ISCC; and ISCmplr use these signatures to verify a number of DLL files before loading them. This is a technology preview that is subject to change (e.g.; any signatures you create now may have to be recreated when upgrading to the next version).$$$Note: ISSigTool does not replace Microsofts signtool in any way and is in fact not related to Authenticode Code Signing at all.$$$Fix: Autocomplete support for parameter names in the [Components] and [Dirs] sections was broken since 6.1.1.$$$Fix: Pascal Scripting support function Extract7ZipArchive which was introduced by 6.4.0 would fail with error 11 on older versions of Windows; at least Windows 8.1 and Windows Server 2016.$$$Minor tweaks and documentation improvements.

6.4.2 (2025-03-12)$$$$$$Added [Setup] section directive CloseApplicationsFilterExcludes.$$$Inno Setup is now built using Delphi 12.1 Athens instead of Delphi 11.3 Alexandria.$$$Inno Setup is now signed using a new code signing certificate. The publisher name on this new certificate; Pyrsys B.V.; is a company owned by Inno Setup co-developer Martijn Laan.

6.4.1 (2025-02-12)$$$$$$Compiler IDE changes$$$$$$Added mouseover tooltips for all Pascal Scripting support functions and class members showing their prototype. Always shows all classes members instead of just those of the current objects class.$$$Autocompletion lists now use the same font as the editor.$$$Fix: When the IDE was started for the first time on a system with a DPI setting over 100%; the editors initial font size was larger than expected.$$$Other changes$$$$$${reg:...} constants can now also embed REG_DWORD-type registry values.$$$Fix: In 6.4.0; using Shift+ in a HotKey parameter in the [Icons] section didnt work and required Shift instead; so for example Ctrl+ShiftM instead of Ctrl+Shift+M.$$$Fix: In 6.4.0; a custom form shown using [Code] didnt have a taskbar button if Setups wizard was not visible at the time.$$$Added official Arabic translation.$$$Some minor tweaks and improvements.

6.4.0 (2025-01-09)$$$$$$Compiler IDE changes$$$$$$Updated the Scintilla editor component used by the Compiler IDE to the latest version.$$$$$$Multiple selection editing has been improved:$$$$$$Added new Add Next Occurrence menu item to the Edit menu to add the next occurrence of the current word or selected text as an additional selection (Shift+Alt+. or Ctrl+D; see below).$$$Added new Select All Occurrences menu item to the Edit menu to select all occurrences of the current word or selected text (Shift+Alt+; or Ctrl+Shift+L).$$$Added new Select All Find Matches menu item to the Edit menu to select all matches of the last find text (Alt+Enter).$$$Additionally; the Find (Ctrl+F) and Replace (Ctrl+H) dialogs now both support being closed by Alt+Enter to directly select all matches.$$$Added shortcuts to add a cursor or selection up or down (Ctrl+Alt+Up and Ctrl+Alt+Down). For multi-line selections this extends the selection up or down and never shrinks.$$$Added shortcut to add cursors to line ends (Shift+Alt+I). Behaves the same as in Visual Studio Code; so for example does nothing if all selections are empty.$$$Added shortcuts to add a word or line as an additional selection (Ctrl+Double Click and Ctrl+Triple Click or Alt+Double Click and Alt+Triple Click).$$$Added shortcut to remove a selection by clicking it (Ctrl+Click or Alt+Click).$$$Multiple selection now works over Left; Right; Up; Down; Home and End navigation and selection commands.$$$Multiple selection now works over word and line deletion commands; and line end insertion.$$$Multiple selection now works better with Copy and Paste commands.$$$Left; Right; etc. navigation with rectangular selection is now allowed.$$$The Find and Replace dialogs and the tools from the Tools menu which generate script text now all work better with multiple selections present.$$$Other editor changes:$$$$$$Added support for Visual Studio Code-style editor shortcuts; like Ctrl+D to Add Next Occurrence; Ctrl+Shift+K to delete a line and Alt+Click to add an additional cursor or remove a selection.$$$To activate this use the Options menu item in the Tools menu to set the new Keys option in the Editor group to Visual Studio Code.$$$The updated Compiler IDE Keyboard And Mouse Commands help topic lists all differences with the classic keyboard and mouse shortcuts.$$$Only if Visual Studio Code-style editor shortcuts have been activated: Added shortcuts to copy line down (Shift+Alt+Down) and to indent or unindent lines (Ctrl+] and Ctrl+[).$$$Added parameter hints for all Pascal Scripting support functions for quick reference to the functions parameter names; types; and order. Parameter hints can be invoked manually by pressing Ctrl+Shift+Space or automatically by using the new Invoke parameter hints automatically option which is enabled by default.$$$Added autocompletion support for all Pascal Scripting support functions; types; constants; etcetera. Existing option Invoke autocompletion automatically controls whether the autocompletion suggestions appear automatically or only when invoked manually by pressing Ctrl+Space or Ctrl+I.$$$Added parameter hints and autocompletion support for all Pascal Scripting support class members and properties. Both always show all classes members and properties instead of just those of the current objects class.$$$Added autocompletion support for all Pascal Scripting event function parameters. Always shows all parameters instead of just those of the current event function.$$$Added autocompletion support for the [Messages] section.$$$Improved autocompletion support for all Flags parameters: now works for multiple flags instead of for the first only.$$$Added new Enable section folding option which allows you to temporarily hide sections while editing by clicking the new minus or plus icons in the editors gutter or by using the new keyboard shortcuts (Ctrl+Shift+[ to fold and Ctrl+Shift+] to unfold) or menu items. Enabled by default.$$$The editors gutter now shows change history to keep track of sa

6.3.3 (2024-07-12)$$$$$$Improved support for ASLR.

6.3.2 (2024-06-29)$$$$$$Pascal Scripting change: Fixed support function TStream.Seek.

6.3.1 (2024-06-10)$$$$$$Fix Compiler IDE startup error on systems with very high DPI.

6.2.2 (2023-02-15)$$$$$$Changes to further help protect against potential DLL preloading attacks; contributed by Johannes Schindelin from the Git for Windows team.$$$Pascal Scripting changes: Improved support for downloads using basic authentication; contributed by Christian Beck.$$$Added new AddEx function to the TDownloadWizardPage support class.$$$Added new SetDownloadCredentials support function.$$$Added official Hungarian translation.

Changes to further help protect uninstallers against potential DLL preloading attacks when running under the SYSTEM account; contributed by Johannes Schindelin from the Git for Windows team.$$$Fixed a cosmetic issue if the icon file specified by the [Setup] section directive SetupIconFile contains more than 13 icons. Thanks to Wilenty and Martin Prikryl for the initial investigation.