ImageUltimate v6.6.9

Version 6.6.9 - December 23, 2025

• Improved: Updated GleamTech.Common.

Included example projects:

• ASP.NET Core (C#) - Visual Studio 2019+
• ASP.NET Core on .NET Framework (C#)- Visual Studio 2017+
• ASP.NET MVC (C#) - Visual Studio 2015+
• ASP.NET MVC (VB) - Visual Studio 2015+
• ASP.NET WebForms (C#) - Visual Studio 2015+
• ASP.NET WebForms (VB) - Visual Studio 2015+

ImageUltimate v6.6.8

Version 6.6.8 - December 18, 2025

• Improved: Updated GleamTech.Common.

Included example projects:

• ASP.NET Core (C#) - Visual Studio 2019+
• ASP.NET Core on .NET Framework (C#)- Visual Studio 2017+
• ASP.NET MVC (C#) - Visual Studio 2015+
• ASP.NET MVC (VB) - Visual Studio 2015+
• ASP.NET WebForms (C#) - Visual Studio 2015+
• ASP.NET WebForms (VB) - Visual Studio 2015+

ImageUltimate v6.6.7

Version 6.6.7 - October 20, 2025

• Improved: Set minimum value limits for ImageCache settings to prevent unnecessary Document cache info is not found
  errors due to user misconfiguration (e.g. thinking they can disable cache by setting zero
  or low values but cache is required for correct operation of DocumentViewer).
  The error happened due to very early trimming of the cache especially when multiple users.

  • MaxAge -> The minimum value is 10 minutes.
  • WaitTimeout -> The minimum value is 2 minutes.
  • AutoTrimInterval -> The minimum value is 5 minutes. The default value is now changed from 20 minutes to 15 minutes
    mainly because IIS AppPool default idle-timeout setting is 20 minutes so we ensure the auto-trim is run before app shutdown.

• Improved: Overwrite existing CacheTrim.log if it was created before ImageCache.MaxAge to avoid very large log files.

Included example projects:

• ASP.NET Core (C#) - Visual Studio 2019+
• ASP.NET Core on .NET Framework (C#)- Visual Studio 2017+
• ASP.NET MVC (C#) - Visual Studio 2015+
• ASP.NET MVC (VB) - Visual Studio 2015+
• ASP.NET WebForms (C#) - Visual Studio 2015+
• ASP.NET WebForms (VB) - Visual Studio 2015+

ImageUltimate v6.6.6

Version 6.6.6 - October 2, 2025

• Improved: AuthenticatedUser.Windows and AuthenticatedUser.Claims used for PhysicalLocation will now also work on
  ASP.NET Core (previously only worked on ASP.NET Classic).
  Also the enum members AuthenticatedUser.Windows and AuthenticatedUser.Claims are made obsolete.
  Use AuthenticatedUser.WebServer and AuthenticatedUser.ClaimsUpn instead.
  These new enum member names are more explanatory for their purpose.

• Improved: Prevent log file name conflicts when multiple Apps sharing App_Data
  For example try file names GleamTech.log, GleamTech-AppName.log, GleamTech-AppName-z0yxh40r.log.
  Also provide environment details (app name, location, os) in GleamTech.log just like AssemblyResolver.log
  when initializing GleamTechConfiguration.

Included example projects:

• ASP.NET Core (C#) - Visual Studio 2019+
• ASP.NET Core on .NET Framework (C#)- Visual Studio 2017+
• ASP.NET MVC (C#) - Visual Studio 2015+
• ASP.NET MVC (VB) - Visual Studio 2015+
• ASP.NET WebForms (C#) - Visual Studio 2015+
• ASP.NET WebForms (VB) - Visual Studio 2015+

ImageUltimate v6.6.5

Version 6.6.5 - September 26, 2025

• Improved: The default value for GleamTechConfiguration.TemporaryFolder will now be [AppData Temporary Folder]
  if current user has read/write access, if not it will be [System Temporary Folder].

  This change is done so that developer is only concerned about write permissions to [AppData Temporary Folder]
  when publishing to production and not system temporary folders such as C:\Windows\Temp.
  This way, everything will be on the table i.e. all generated files (AssemblyResolver files, cache files, log files) will be in a single place.
  Files from old system temporary folder will be migrated/moved to this new location on application startup (if has write access).

  [AppData Temporary Folder] can be different for different environments:

  • For ASP.NET Core apps, the resolved result of ~/App_Data:
    • [AppBase]\wwwroot\App_Data\Temporary
  • For ASP.NET Classic apps, the resolved result of ~/App_Data:
    • [AppBase]\App_Data\Temporary
  • For Console or other non-web apps:
    • [AppBase]\AppData\Temporary

  [System Temporary Folder] can be different for different environments:

  • For ASP.NET Core apps, the result of Path.GetTempPath() which
    depends on "TMP", "TEMP" and "USERPROFILE" environment variables:
    • %WINDIR%\Temp\GleamTech\[AppName]-[AppHash]
    • %LOCALAPPDATA%\Temp\GleamTech\[AppName]-[AppHash]
      (if "Load User Profile" is enabled for AppPool in IIS)
  • For ASP.NET Classic apps:
    • %WINDIR%\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\[AppName]\[AppHash]\GleamTech
    • %WINDIR%\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\[AppName]\[AppHash]\GleamTech
      (if 32-bit AppPool)
    • %LOCALAPPDATA%\Temp\Temporary ASP.NET Files\vs\[AppHash]\GleamTech
      (when debugging in Visual Studio)
  • For Console or other non-web apps, the result of Path.GetTempPath() which
    depends on "TMP", "TEMP" and "USERPROFILE" environment variables:
    • %LOCALAPPDATA%\Temp\GleamTech\[AppName]-[AppHash]
    • %WINDIR%\Temp\GleamTech\[AppName]-[AppHash]
  • For apps running on unix-like platforms:
    • /tmp/GleamTech/[AppName]-[AppHash]

• Improved: ImpersonationContext is improved to support multi-threads and async threads.
  Ensured ImpersonationInfo and LogonCredential do not lose access tokens (re-cache when necessary).

• Improved: TemporaryFolder, FileCache and DbProvider will now do two tries for access, if first one fails,
  will try again by reverting possible impersonation.

• Changed: Removed legacy GleamTechConfiguration.AlphaFileSystemEnabled property.

Included example projects:

• ASP.NET Core (C#) - Visual Studio 2019+
• ASP.NET Core on .NET Framework (C#)- Visual Studio 2017+
• ASP.NET MVC (C#) - Visual Studio 2015+
• ASP.NET MVC (VB) - Visual Studio 2015+
• ASP.NET WebForms (C#) - Visual Studio 2015+
• ASP.NET WebForms (VB) - Visual Studio 2015+

ImageUltimate v6.6.2

Version 6.6.2 - September 10, 2025

• Improved: Stability and performance of image processing and image formats.

Included example projects:

• ASP.NET Core (C#) - Visual Studio 2019+
• ASP.NET Core on .NET Framework (C#)- Visual Studio 2017+
• ASP.NET MVC (C#) - Visual Studio 2015+
• ASP.NET MVC (VB) - Visual Studio 2015+
• ASP.NET WebForms (C#) - Visual Studio 2015+
• ASP.NET WebForms (VB) - Visual Studio 2015+

ImageUltimate v6.6.1

Version 6.6.1 - September 1, 2025

• Improved: Updated GleamTech.Common.

Included example projects:

• ASP.NET Core (C#) - Visual Studio 2019+
• ASP.NET Core on .NET Framework (C#)- Visual Studio 2017+
• ASP.NET MVC (C#) - Visual Studio 2015+
• ASP.NET MVC (VB) - Visual Studio 2015+
• ASP.NET WebForms (C#) - Visual Studio 2015+
• ASP.NET WebForms (VB) - Visual Studio 2015+

ImageUltimate v6.6.0

Version 6.6.0 - August 27, 2025

• Improved: Stability and performance of image processing and image formats.

Included example projects:

• ASP.NET Core (C#) - Visual Studio 2019+
• ASP.NET Core on .NET Framework (C#)- Visual Studio 2017+
• ASP.NET MVC (C#) - Visual Studio 2015+
• ASP.NET MVC (VB) - Visual Studio 2015+
• ASP.NET WebForms (C#) - Visual Studio 2015+
• ASP.NET WebForms (VB) - Visual Studio 2015+

ImageUltimate v6.5.4

Version 6.5.4 - July 3, 2025

• Improved: Updated GleamTech.Common.

Included example projects:

• ASP.NET Core (C#) - Visual Studio 2019+
• ASP.NET Core on .NET Framework (C#)- Visual Studio 2017+
• ASP.NET MVC (C#) - Visual Studio 2015+
• ASP.NET MVC (VB) - Visual Studio 2015+
• ASP.NET WebForms (C#) - Visual Studio 2015+
• ASP.NET WebForms (VB) - Visual Studio 2015+

ImageUltimate v6.5.3

Version 6.5.3 - May 6, 2025

• Improved: Updated GleamTech.Common.

Included example projects:

• ASP.NET Core (C#) - Visual Studio 2019+
• ASP.NET Core on .NET Framework (C#)- Visual Studio 2017+
• ASP.NET MVC (C#) - Visual Studio 2015+
• ASP.NET MVC (VB) - Visual Studio 2015+
• ASP.NET WebForms (C#) - Visual Studio 2015+
• ASP.NET WebForms (VB) - Visual Studio 2015+