Release Notes for MERLIC 26.03 MERLIC 26.03 版本说明

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Release Notes for MERLIC 26.03

MERLIC 26.03 版本说明

Here you can read the release notes forMVTec MERLIC 26.03, as released in March 2026.

您可以在此查阅 MVTec MERLIC 26.03 的发布说明，该版本于 2026 年 3 月发布。

Contents

目录

• Supported     Operating Systems
  
• Major     New Features
  
• Compatibility
  
• Security-Related     Topics
  
• Image     Source Manager
  
• MERLIC     RTE
  
• Plug-ins     for MERLIC RTE
  
• Communication     Plug-in SDK
  
• MERLIC     RTE Setup
  
• MERLIC     Creator
  
• Frontend     Designer
  
• MERLIC     Frontend
  
• Tools
  
• Examples
  
• Documentation
  
• Licensing
  
• Miscellaneous
  
• Known     Issues
  

Supported Operating Systems

支持的操作系统

MERLIC is available for Windows and Linuxsystems. On Windows, all components of MERLIC can be used. For Linux systems,currently only the runtime environment of MERLIC, MERLIC RTE, and MERLICFrontend are available.

Windows

MERLIC 26.03.0 is available for Windows 11(64-bit, version 24H2) or Windows IoT Enterprise LTSC 2024, or newer.

Linux

MERLIC RTE and MERLIC Frontend areavailable on PC-based and Arm-based Linux systems (kernel version 5.4 ornewer).

Developing the MERLIC Vision App is stilldone on a Windows system with the MERLIC Creator. The application can then beused with MERLIC RTE and MERLIC Frontend on the Linux system. Cameras can beset up remotely with the help of MERLIC RTE Setup.

System Requirements

系统要求

A detailed description of the systemrequirements for installing and using MERLIC on Windows and Linux systems isprovided in the MERLIC manual on the page System Requirements.

Major New Features

主要新功能

New Versioning and Licensing

新版本号与许可协议

With MERLIC 26.03, the transition to theunified MVTec versioning nomenclature in the format Year.Month (YY.MM) takesplace. Additionally, customers benefit from a new licensing model. It issimpler and more flexible, as there are now only two packages available:"MERLIC" and "MERLIC Professional."

The "MERLIC" package offers anideal entry point into the machine vision world. It includes all rule-basedfeatures and functions of MERLIC, as well as the two tools “Read Text andNumbers with Deep Learning” and “Count with Deep Learning”.

With MERLIC Professional, users gain accessto all remaining deep learning functionalities, as well as all featuresincluded in the base package. Additionally, MERLIC Professional allows for theintegration of custom MERLIC tools.

For even more customization, MERLIC 26.03offers two add-ons that can be added to the "MERLIC" package asneeded: "MERLIC Deep Learning Add-On" & "MERLIC Custom ToolsAdd-On". This allows users to select exactly the features they need. Theprevious limitation on the number of cameras has been removed. Both packagesnow support an unlimited number of cameras, within technical limits. For users,this means maximum flexibility, easy scalability, and complete future-proofing– regardless of how the application evolves.

"Frontend Observability"

“前端可观测性”

MERLIC 26.03 introduces a new feature thatenables complete observability for certain user interactions in the MERLICFrontend. Users benefit from seamless traceability, knowing who made whichchanges and when. This ensures secure and transparent operation during ongoingprocesses and provides all information required to create an audit trail.

MERLIC provides an open interface throughwhich activities like parameter changes or user logins can be automaticallytransferred to existing observability or audit systems. This not only enhancestransparency but also supports compliance and quality requirements in regulatedproduction environments.

Improved "Write Access" Widget

改进的“写入权限”小工具

MERLIC 26.03 makes working with writepermissions in the Frontend easier and more secure. The write access widget nowclearly indicates whether changes are permitted and whether unsaved changes arepending. This ensures users always maintain full visibility.

Additionally, two new approval actions areavailable: automatic saving or a save dialog to confirm or discard changes. Incombination with user management, different roles can be configured withappropriate approval options – ideal for professional and regulated productionenvironments.

The result: greater usability, enhancedtransparency, and controlled, traceable change management during ongoingoperations.

New Concept Tool "Tile Images"

新功能“平铺图片”

MERLIC 26.03 introduces the new concepttool “Tile Images.” It allows users to tile two images with the same number ofchannels into a single composite image – either horizontally or vertically. Byapplying the tool multiple times, larger image compositions can be created stepby step. This helps structure image data clearly and supports efficientdownstream processing.

In combination with acquisition sequences,images acquired from line scan or area cameras can be combined into acontinuous overall image.

As a concept tool, “Tile Images” is stillin an early stage of development. Users are invited to test the functionalityand contribute feedback to help shape future MERLIC versions.

Improvements for Deep OCR

深度OCR的改进

The tool "Read Text and Numbers withDeep Learning" now provides a compact, high-performance, andmemory-efficient deep learning model. In addition, models optimized for one ofMVTec’s AI² interfaces can be used. Advanced parameters provide users with morecontrol over recognition and reading behavior.

Improved print quality verification for2D Code Quality

改进的二维条码质量打印质量验证

The 2D code tools in MERLIC now support thelatest international quality standards ISO/IEC 15415:2024 for printed 2D codesand ISO/IEC 29158:2025 for direct part marking (DPM). This enables more preciseand standard-compliant quality inspections.

Compatibility

兼容性

Since the last MERLIC version wehave been working hard to improve MERLIC in every way. This has,however, resulted in a few incompatibilities. We apologize for theinconvenience.

   
• Communication Plug-in SDK       通信插件 SDK
    
  
     
  • The communication plug-in support library method " MVPlugin::Config::Builder::WithName() "       has been deprecated and will be removed in a future version. Plug-in       authors should switch to the new " WithKey() "       method instead. If the plug-in's configuration should remain compatible       across the switch, users might need to strip non-alphanumeric characters       manually. For example, " WithName("config_parameter") "       would need to become " WithKey("configparameter") "       to still refer to the same configuration parameter. If compatibility       with plug-in versions using the old " WithName() "       is not a concern, non-alphanumeric characters can be used together with       " WithKey() " and will use the parameter key       as-is. More       information.
      
    
• MERLIC RTE Setup   MERLIC      RTE 设置
    
  
     
  • The MERLIC RTE Setup is only compatible with MERLIC servers       of the same major version. As a result, the MERLIC RTE Setup of MERLIC       26.03 cannot connect to the MERLIC Creator or MERLIC RTE of MERLIC 5.x       versions. Likewise, the MERLIC RTE Setup of MERLIC 5.x versions cannot       connect to a MERLIC Creator or MERLIC RTE of MERLIC 26.03.
      
    
• Tools   工具
    
  
     
  • Due to various improvements in MERLIC tools and Designer       widgets, the internal file version of MERLIC Vision Apps (MVApps) has       been increased to version 7. When opening example MVApps created with       earlier MERLIC versions, a conversion dialog is displayed. It is       recommended to review the MVApp after conversion, as the changes may       affect its functionality.
       
  • The MERLIC tool "Acquire Image from Camera" is no       longer available in MERLIC. It has been removed from the       "Legacy" category in the Tool Library. For the image       acquisition from camera devices, we recommend using the Image Source       Manager. More       information.
       
  • The MERLIC tools "Read from Socket" and "Write       to Socket" are no longer available in MERLIC. They have been       removed from the "Legacy" category in the Tool Library. For       the communication via sockets, we recommend using the communication       plug-in "TCP Socket", which is available as an additional       communication plug-in for MERLIC in MVTec Software Manager. More       information.
       
  • Due to the parameter changes for the tool "Read QR       Code", exisiting MERLIC Vision Apps (MVApps) using this tool must       be converted to the new MERLIC version. It is further recommended to       check the functionality of the tool after the MVApp conversion and       adjust the configuration if required. More       information.
       
  • Due to the parameter changes for the tool "Read Text and       Numbers with Deep Learning", exisiting MERLIC Vision Apps (MVApps)       using this tool must be converted to the new MERLIC version. It is       further recommended to check the functionality of the tool after the       MVApp conversion and adjust the configuration if required. More       information.
       
  • MERLIC now supports the newest version of the print quality       inspection standards ISO/IEC 15415:2024 and ISO/IEC 29158. Due to this       update, one of the parameter values for the "Print Quality"       parameter in MERLIC tools for reading 2D data codes has changed.       Therefore, it is recommended to check and update MERLIC Vision Apps       (MVApps), which use these tools and the respective verification       standard. More       information.
       
  • MERLIC tools with deep learning functionality no longer       support deep learning models that were optimized for TensorRT on GPUs       with a compute capability lower than 7.5. The error handling of the       affected tools has been updated accordingly.
      
    
• Licensing   许可
    
  
     
  • Due to the new licensing model of MERLIC, a new license is       required to use MERLIC 26.03. If MERLIC is started without an activated       license, it will run in trial mode.
      
    
• Miscellaneous   其他
    
  
     
  • Due to the new underlying HALCON version, the behavior of       existing custom tools may have changed since the last MERLIC version.       Therefore, it is recommended to check the functionality of existing       custom tools in this MERLIC version. More       information.
      

Security-Related Topics

与安全相关的主题

The following issues are relevant in thecontext of cybersecurity:

   
• New Features    新功能
    
  
     
  • The release notes now contain an additional section for all       issues that are relevant for cybersecurity.
       
  • The MERLIC manual has been extended with a new page       "Auxiliary Information > Cybersecurity", which provides       security information on MERLIC.
      
    
• Fixed Problems 已修复的问题
    
  
     
  • If the MERLIC Frontend was connected to an MVApp with user       management and a user was already logged in, the authentication state       could persist when loading another MVApp with its own user management,       for example, when preparing a different recipe or connecting to a       different server. In cases where both MVApps define a user with the same       username but different passwords, the MERLIC Frontend may have granted       access to the newly loaded MVApp without requiring re‑authentication.       This problem has been fixed.
       
  • Internal security checks identified the security       vulnerability CVE-2026-27171 (zlib). The vulnerability concerns the       functions crc32_combine64 and crc32_combine_gen64. These functions are       neither called by MERLIC nor by any third-party libraries used by MERLIC.       Exploitation in the context of MERLIC is therefore not possible and the       CVE is not applicable to our product.
       
  • While opening an MVApp with enabled user management in MERLIC       Creator, it was possible to time the connection of a connecting Frontend       such that the user login was bypassed and the unauthenticated Frontend       received views that it should not have been privy to. These views       remained usable until the Frontend was reconnected. This problem has       been fixed. The user's authentication is now continuously validated and       the Frontend session expires when opening a new user management       database. Note that this problem did not affect MERLIC RTE.
      

Image Source Manager

图像源管理器

   
• Enhancements   改进
    
  
     
  • The “File” image acquisition interface used by the Image       Source Manager (ISM) and the MERLIC tool “Acquire Image from File” has       been updated to revision 24.11.8.
      

MERLIC RTE

MERLIC运行时

   
• New Features    新功能
    
  
     
  • MERLIC RTE now supports the transmission of observability       data. For this, MERLIC is instrumented to allow observability of the       MERLIC Frontend via the OpenTelemetry framework. Users may track user       interactions that were made in the MERLIC Frontend while MERLIC RTE is       running. To enable the export of the observability data, MERLIC provides       a new MERLIC INI option " OtlpHttpEndpoint " in       category " [OpenTelemetry] ", which allows setting       the endpoint to which the data shall be sent. If this option is enabled,       MERLIC RTE records and sends observability data regarding the following       actions:
       
    
       
    • User logins, user logouts, and password changes
         
    • Acquiring and releasing write access the MERLIC Frontend
         
    • Changing parameter values
         
    • Saving and reverting the program
         
       
  • MERLIC RTE now allows defining a custom name for a MERLIC RTE       instance to facilitate identifying the instance, for example, when using       the new Frontend obserability feature and monitoring recorded data. The       name can be defined via the new command line option " --name "       or via the MERLIC INI file with the new INI option " InstanceName "       in category " [ProcessIntegration] ". If no instance       name is defined when starting MERLIC RTE, a unique name in the form of a       UUID (universally unique identifier) is assigned by default. The       instance name is also written to the MERLIC log file.
      
    
• Fixed Problems 已修复的问题
    
  
     
  • MERLIC RTE crashed when the MVApp referenced by a recipe       could not be read at the time the recipe was prepared. This problem has       been fixed. Now, preparing the recipe will fail gracefully, causing       MERLIC RTE to remain in the "Initialized" state and emit an       "Error" event.
      

Plug-ins for MERLIC RTE

MERLIC运行时插件

   
• Enhancements   改进
    
  
     
  • The OPC UA plug-in has been improved and updated to version       2.4.0. The plug-in now redirects the "trace" information from       the stack and application directly into the MERLIC RTE log files       removing the need of a separate log file. The plug-in configuration has       been adjusted accordingly. The following user parameters have been       removed from the "OPC UA Trace" category as they are no longer       needed:
       
    
       
    • Disable flushing of the trace file
         
    • Maximum number of trace entries per file
         
    • Maximum number of trace backup files
         
    • Trace file location
         
       
  • The configuration options for the OPC UA plug-in have been       improved:
       
    
       
    • The category "Endpoint Connection" has been        extended by two new parameters: "Address" and        "Port". They can be used to define the IP address (IPv4 or        IPv6) or host machine of the server, and the port for the connection.        In contrast, the "URL" parameter has been removed from the        configuration because it is no longer needed.
         
    • In the category "Server Certificate", the default        value of the parameter "Domain name" has been changed from        " [NodeName] " to " [HostName] ".        However, using the " [NodeName] " for the parameter        is still possible.
         
    • In the category "Endpoint Security Overrides", the        following parameters have been renamed for more clarity:
         
      
           
      • "Accept missing CRLs" has been renamed to         "Accept missing certificate revocation lists"
             
      • "Disable ApplicationUri check" has been renamed         to "Disable application uri check"
             
      • "Disable UserToken PolicyId check" has been         renamed to "Disable user token policy id check
           
         
       
  • The Unified Automation OPC UA SDK has been updated to version       2.0.1.
      

Communication Plug-in SDK

通信插件 SDK

   
• New Features    新功能
    
  
     
  • The MERLIC executable       "merlic_communication_plugin_host.exe" provided for the       development of communication plug-ins has been extended with a new       command line option " --override ". It can be used       to override individual configuration parameters, for example, for       debugging purposes. Additionally, the executable will now print the       configuration parameters that will be used by the plug-in.
       
  • In the communication plug-in support library, " MVPlugin::Config::Builder "       has been extended with the method " WithKey() ",       which allows adding configuration parameters with keys. This keys can       contain dashes ( - ) and underscores ( _ ) in       addition to alphanumeric characters. This method supersedes " WithName() ",       which drops all non-alphanumeric characters and has been deprecated.       Note that this change affects the compatibility. Read       more.
      

MERLIC RTE Setup

MERLIC运行时设置

   
• Enhancements   改进
    
  
     
  • In the "Recipes" tab of the MERLIC RTE Setup, the       display of the recipe and MVApp descriptions have been improved.       Previously, the texts were wrapped character by character which could       make it hard to read the text. Now, the texts are wrapped word by word.
      
    
• Fixed Problems 已修复的问题
    
  
     
  • When dragging a section in the configuration area of any tab       in the MERLIC RTE Setup to the right and then reducing the window width,       the contents of the respective section were not visible anymore. This       problem has been fixed.
       
  • In case the MVApp referenced by a recipe could not be parsed,       for example, due to lacking file permissions or a compatibility issue,       the section "Recipe interface" on the "Recipes" tab       of the MERLIC RTE Setup potentially showed follow-up errors pertaining       to ostensibly superfluous recipe values. This problem has been fixed.       The validation of the recipe interface is now skipped in this case.
      

MERLIC Creator

MERLIC创造器

   
• New Features    新功能
    
  
     
  • The “File” menu of MERLIC Creator and MERLIC Frontend now       includes the new entry “Revert to Last Saved”. It can be used to restore       an MVApp or a recipe to its last saved state.
      
    
• Improved Usability  提升了易用性
    
  
     
  • Saving write-protected MVApps has been improved. Attempting       to save a write protected MVApp would present a pop-up error stating the       issue, but offering no alternative to save the changes. This problem has       been fixed. The pop-up error now prompts the user to save the MVApp in a       different file.
      

Frontend Designer

前端设计器

   
• Fixed Problems 已修复的问题
    
  
     
  • The context menu of some widgets in the Frontend Designer       erroneously listed tools without any compatible parameters for the       selected widget. Therefore, widgets could only be connected reliably to       tool parameters and results via the widget properties panel. This       problem has been fixed.
       
  • When resizing the "easyTouch Button" widget in the       Frontend Designer, the background and handle of the widget were not       correctly aligned anymore when the height-to-width ratio of the widget       became too large. This problem has been fixed. Both the handle and       background of the widget are now anchored to the top of the widget.
       
  • If the user canceled the dialog for saving an MVApp in MERLIC       Creator, the menu and controls within the Frontend Designer were still       erroneously disabled. The Frontend Designer could not be used before any       MVApp was actually saved. This problem has been fixed. The Frontend       Designer is now correctly enabled regardless of whether the saving       process was finished or cancelled by the user.
      

MERLIC Frontend

MERLIC 前端

   
• New Features    新功能
    
  
     
  • The write access mode of the MERLIC Frontend and the       respective Designer widget have been improved. Previously, the       "Write Access" widget could also be used when the MERLIC       Frontend was connected to MERLIC Creator although the write access is granted       by default for connections to MERLIC Creator. As this might have led to       confusion on the intended use, the "Write Access" widget is       now disabled by default if the MERLIC Frontend is connected to MERLIC       Creator. It will only be enabled when the MERLIC Frontend is connected       to a MERLIC RTE instance.
           Additionally, the "Write Access" widget has been extended by a       new property "Release Action". It defines the action that will       be triggered when releasing write access in the MERLIC Frontend or when       the MERLIC Frontend is closed while there are still unsaved changes.       MVApp developers may choose between saving the changes automatically or       showing a save dialog. The save dialog allows Frontend users to specify       a reason for the change but also allows discarding the changes or       canceling the saving process.
           The icon for the "Write Access" widget has also been revised       to make it easier to differentiate the widget from the "easyTouch       Button" widget. It now indicates whether write access is currently       granted in the MERLIC Frontend and whether there are any unsaved       changes. The widget properties now also provide more customization       options for the color of the widget.
       
  • The “File” menu of MERLIC Creator and MERLIC Frontend now       includes the new entry “Revert to Last Saved”. It can be used to restore       an MVApp or a recipe to its last saved state.
      
    
• Fixed Problems 已修复的问题
    
  
     
  • When a Frontend design contained both an "easyTouch       Button" and a "Training" widget, easyTouch could not be       enabled while the training mode was still active. This problem has been       fixed. Now, both widgets can be enabled any time and, if necessary, the       other widget is automatically disabled.
       
  • An intermittent connectivity issue caused the MERLIC Frontend       to briefly lose connection and then reconnect automatically. If write       access in the MERLIC Frontend was currently granted when the connection       was lost, write access was also released. This problem has been fixed.
       
  • When saving a large MVApp after changing a parameter in the       MERLIC Frontend, the connection could time out before the response of       the server for the saving process was sent back to the client. The       MERLIC Frontend then reconnected but without any indication of what       happened. This problem has been fixed. The timeout has been increased.       Additionally, the user is now notified with a dialog when the response       for the saving process exceeds the timeout.
       
  • If the MERLIC Frontend was connected to an MVApp with user       management and a user was already logged in, the authentication state       could persist when loading another MVApp with its own user management,       for example, when preparing a different recipe or connecting to a       different server. In cases where both MVApps define a user with the same       username but different passwords, the MERLIC Frontend may have granted       access to the newly loaded MVApp without requiring re‑authentication.       This problem has been fixed.
       
  • If an MVApp was reloaded in the MERLIC Frontend because of a       user login or unpreparing and preparing a recipe in MERLIC RTE, the       Frontend design of the MVApp sometimes appeared slightly shifted within       the MERLIC Frontend window. This problem has been fixed.
       
  • When releasing write access in the MERLC Frontend while an       "easyTouch Button" widget or a "Training" widget was       engaged, the connected image display continued to be modified by the       widgets, even though it was not possible to interact with them anymore       until write access was acquired again. This problem has been fixed.       Either widget will now disengage when write access is released and the       image display will be restored accordingly.
       
  • If an MVApp was loaded in MERLIC Creator while the user       management was currently enabled in the Frontend Designer, the Frontend       design was not restored properly. As a consequence, a MERLIC Frontend       connected to MERLIC Creator displayed a blank page instead of the       Frontend design of the loaded MVApp. This problem has been fixed.
       
  • If the "Training" widget was used in a MERLIC       Frontend design in combination with an enabled user management, it did       not display any existing training data. It could be therefore not used       for training in the MERLIC Frontend. This problem has been fixed.
       
  • While opening an MVApp with enabled user management in MERLIC       Creator, it was possible to time the connection of a connecting Frontend       such that the user login was bypassed and the unauthenticated Frontend       received views that it should not have been privy to. These views       remained usable until the Frontend was reconnected. This problem has       been fixed. The user's authentication is now continuously validated and       the Frontend session expires when opening a new user management       database. Note that this problem did not affect MERLIC RTE.
      

Tools

工具

   
• New Features    新功能
    
  
     
  • The MERLIC tool "Read Text and Numbers with Deep       Learning" has been extended and improved in various ways. It now       supports using optimized Deep OCR models. Additionally, it now allows       setting different processing units and precisions for the detection       component and reading component of the Deep OCR model. For this, the       respective tool parameters and tool results have been replaced as       follows:
       
    
       
    • "Processing Unit" has been replaced with        "Processing Unit - Reading" and "Processing Unit -        Detection"
         
    • "Precision" has been replaced with "Precision        - Reading" and "Precision - Detection"
         
    • "Used Processing Unit" has been replaced with        "Used Processing Unit - Reading" and "Used Processing        Unit - Detection"
         
    • "Precision Data Type" has been replaced with        "Precision Data Type - Reading" and "Precision Data Type        - Detection"
         
      

As part of this change, further parametersthat refer to specific components of the Deep OCR model have been renamed toensure consistent naming:

         
• "Detection Model File" has been renamed to        "Model File - Detection"
     
• "Reading Model File" has been renamed to        "Model File - Reading"
     
• "Image Width for Reading" has been renamed to        "Image Width - Reading"
        

Note that this change affects thecompatibility. Readmore.

   

   
• MERLIC has been extended with a new concept tool "Tile       Images". It is available in the tool category "Concept Tools       > Preprocssing". The tool allows tiling two images with the same       number of channels into one image. The tool parameter "Mode"       allows users to choose whether the images are tiled horizontally or       vertically. The tool can be used multiple times to subsequently create       an image based on a sequence of tiled images. In combination with       acquisition sequences, the new concept tool can be used to tile images       that were acquired from a line scan or area camera before proceeding       with the actual image processing tasks.
         This concept tool can be used to evaluate the current stage of       development of this tool. MVTec appreciates any feedback on desired       changes or further feature requests. The feedback can be submitted on       the MERLIC feedback website which can be accessed from the MERLIC       Creator either via the feedback icon on the top right or via the       "Help" menu.
    
  
• Enhancements   改进
    
  
     
  • The MERLIC tool "Acquire Image from Camera", which       had been deprecated since MERLIC 5.0, has been removed. The tool is no       longer available in the "Legacy" category of the Tool Library       in the MERLIC Creator. Note that this change affects the       compatibility. Read       more.
       
  • The MERLIC tools for reading 2D data codes now support the       newest version of the verification standards for print quality       inspection: ISO/IEC 15415:2024 for print quality inspection of       two-dimensional barcodes and the ISO/IEC 29158:2025 for assessing the       symbol quality of direct marked parts (DPM). This update affects the       following tools:
       
    
       
    • Read Aztec Code
         
    • Read Data Matrix ECC 200
         
    • Read PDF417
         
    • Read QR Code
         
      

When selecting the respective value in the"Print Quality" parameter, the print quality will be inspected basedon the newest version of the seleted standard. Due to this update, theparameter value for the ISO/IEC 29158 standard has been renamed from"ISO/IEC TR 29158 (AIM DPM-1-2006)" to "ISO/IEC 29158".This change applies to the tools "Read Aztec Code", "Read DataMatrix ECC 200", and "Read QR Code". Note that this changeaffects the compatibility. Readmore.

   

   
• The MERLIC tool "Read Bar Code" has been improved.       The parameter "Element Width Tolerant" is now also supported       for the code types "Code 128" and "GS1‑128".
     
• Starting with this MERLIC version, the tools "Read from       File", "Write Image to File", and "Write to       File" are set as legacy. The tools have been moved from the tool       category "File Access" to "Legacy > File Access".       They remain available to provide backward compatibility, but they will       no longer be maintained or updated in upcoming MERLIC versions. We       recommend using the communication plug-ins "save-results" and       "save-images" instead.
     
• The MERLIC tools "Read from Socket" and "Write       to Socket", which had been deprecated since MERLIC 5.0, have been       removed and are no longer available. As a result, the tools are no       longer provided in the "Legacy" category of the Tool Library       in the MERLIC Creator. Note that this change affects the       compatibility. Read       more.
     
• The tool parameter "Minimum Contrast" of the MERLIC       tool "Read QR Code" has been removed. The parameter was       already deactivated in the previous MERLIC version and is now no longer       available at this tool. As part of this change, also the respective tool       result "Minimum Contrast Out" has been removed. Note that this       change affects the compatibility. Read       more.
     
• The MERLIC tool "Read Text and Numbers with Deep       Learning" has been extended with a new Deep OCR reading model. The       respective model file       "pretrained_deep_ocr_reading_compact.hdl" can be selected at       the tool parameter "Model File - Reading". The new model is       slightly less precise than the default model, but it uses significantly       less memory and is much faster during inference.
    
  
• Fixed Problems 已修复的问题
    
  
     
  • The MERLIC tools "Detect Anomalies" and       "Detect Anomalies in the Global Context" did not perform an       inference if the parameters defining the different thresholds were       modified during the execution, for example, by a connected tool or in       MERLIC RTE mode by an MVApp parameter. This problem has been fixed.
       
  • In the MERLIC tools "Read PDF 417" and "Read       Aztec Code", the range of the parameter "Minimum       Contrast" was incorrectly narrowed to [10..100] . This       problem has been fixed. The valid range has been corrected to [1..255] .
       
  • The parameter value of "Minimum Module Size" in the       MERLIC tool "Read Aztec Code" could not be modified using the       arrow buttons. Additionally, the tool reference of the tools "Read       Aztec Code", "Read Data Matrix ECC 200", and "Read       QR Code" did not mention the correct value range for the parameter       "Maximum Module Size". These problems have been fixed.
       
  • MERLIC could crash when the parameter "Deformation       Tolerance" of the MERLIC tool "Read QR Code" was set to       "curved" and certain images of codes with defect error       corrections were used. This problem has been fixed.
       
  • When loading an MVApp containing the MERLIC tool "Read       Text and Numbers with Deep Learning", a misleading error was logged       if the tool used an optimized recognition model and the parameter       "Recognition Alignment" was enabled. This problem has been       fixed.
       
  • The Japanese translation of several tool parameters and tool       results was inaccurate and did not correctly convey their intended       meaning. For example, for results with the suffix “Out”, the suffix was       translated as 外れ or 値外,       which implies deviation or outliers. This problem has been fixed. The       Japanese translations have been revised to ensure consistent and       accurate representation of their meaning, for example by translating       “Out” as 出力 for output values.
       
  • The values for the tool parameter "Precision" in       MERLIC tools with deep learning functionality have been improved.       Previously, the parameter could be set to "high" or       "medium", which related to the data types "float32"       and "float16". However, these values could lead to confusion       as it was not clear, which data type was internally used for the       respective value. Additionally, precisons other than "float32"       or "float16" were displayed as "unknown". Now, the       parameter values have changed to list the actual data types, for       example, "float32", "float16", or       "bfloat16".
      

Examples

示例

   
• New Features    新功能
    
  
     
  • MERLIC has been extended with three new examples for Frontend       observabilty. The examples use Docker Compose to define multiple       containers, volumes, and networks in a reproducible way. The example       Dockerfiles and scripts are provided in the directory "examples\containers\observability"       within the MERLIC installation. For each example, a "Readme"       file is provided, which contains information on the prerequisites and       how to run the example.
      
    
• Enhancements 改进
    
  
     
  • The MVApp example       "evaluate_ecc_200_print_quality.mvapp" has been updated to the       new ISO/IEC 15415:2024 standard. Furthermore, some additional example       images have been added.
      
    
• Improved Usability  提升了易用性
    
  
     
  • Saving write-protected MVApps has been improved. Attempting       to save a write protected MVApp would present a pop-up error stating the       issue, but offering no alternative to save the changes. This problem has       been fixed. The pop-up error now prompts the user to save the MVApp in a       different file.
      
    
• Fixed Problems 已修复的问题
    
  
     
  • Some texts of MVApp examples were not correctly displayed in       the MERLIC Frontend because the specified font family was not available       on the system. The texts were sometimes truncated or displayed with the       system font instead of the specified font. This problem has been fixed.       MERLIC now embeds the font families "Open Sans", "Noto       HK", and "Source Code Pro". Additionally, the Frontend       texts of the example MVApps have been adapted to use the font family       "Open Sans" to ensure that the texts are displayed correctly       on each system.
      

Documentation

文档

   
• New Features    新功能
    
  
     
  • The release notes now contain an additional section for all       issues that are relevant for cybersecurity.
       
  • The MERLIC manual has been extended with a new page       "Auxiliary Information > Cybersecurity", which provides       security information on MERLIC.
      
    
• Enhancements   改进
    
  
     
  • The system requirements in the MERLIC manual have been       updated to include Windows IoT Enterprise LTSC 2024.
       
  • The documentation of the write access mode has been improved.       It now describes more clearly the intended use of the write access mode,       the differences depending on the server to which the MERLIC Frontend is       connected, and how to enable the write access in MERLIC RTE mode.
      
    
• Improved Usability 提升了易用性
    
  
     
  • Accessing the MERLIC documentation via the graphical user       interface of the different MERLIC applications has been improved and       standardized to be more intuitive. The "Help" menus of MERLIC       Creator, Frontend Designer, and MERLIC Frontend now provide two       distinctive menu entries to access help: one for accessing the start       menu of the MERLIC manual and one to access the context-help of the       currently focused element. The menus also show the respective keyboard       shortcuts. Additionally, the MERLIC RTE Setup has been extended with a       help button on the top-right corner to access the context-help of the       current tab via mouse-click.
      
    
• Fixed Problems 已修复的问题
    
  
     
  • The MERLIC manual did not provide any information on which       MQTT version is used by the MQTT plug-in. This problem has been fixed.
       
  • In the MERLIC manual, the page "Installed File       Structure" has been renamed to "Created and Installed File       Structure". Furthermore, a new table has been added to provide a       clearer overview of additional configuration files and log files that       are created while working with MERLIC.
       
  • In the MERLIC manual, some pages referring to resizing the       tool flow of an MVApp did not show the correct icon for the "Reset       zoom to 100%" button. This problem has been fixed.
       
  • In the MERLIC manual, several terms referring to the OPC UA       plug-in and OPC UA server were not used correctly. This resulted in       inaccurate and inconsistent translations on some pages. This problem has       been fixed.
       
  • On the page "Speed-Up Tips" in the MERLIC manual,       the section "Disabling Foreground Window Priority Boost" was       not translated. This problem has been fixed.
       
  • In the MERLIC manual, various screenshots and screencasts of       the MERLIC Frontend were outdated. This problem has been fixed.
       
  • In the MERLIC manual, equations containing text were not       displayed correctly accross all languages. The text font was set to       italic, which is appropriate for the English and German manual but not       for Chinese and Japanese. This problem has been fixed. Text within       equations are still displayed in italic font in the English and German       manuals. In the Chinese and Japanese manuals, however, the characters       are now displayed in regular (non-italic) font to ensure proper       readability and language-specific formatting.
      

Licensing

许可

   
• Enhancements 改进
    
  
     
  • The license protection tools from Wibu-Systems used by MERLIC       have been updated to the latest versions. MERLIC now uses CodeMeter       version 8.40d.
      

Miscellaneous

其他

• The AI² interfaces that are optionally used for the deep     learning tools are updated. MERLIC now contains the following versions of     the interfaces:
  
  
    
  • OpenVINO: Revision 21.05.5.2
      
  • TensorRT: Revision 25.11.1.4
    
• To profit from the improvements of the new HALCON version, the     HALCON libraries used by MERLIC have been upgraded to the HALCON 25.11     Progress version. Note that this change affects the compatibility. Read     more.
  

Known Issues

已知问题

The following issue is already known and indevelopment process. It will be fixed for upcoming releases.

• In frequent cases, when using TensorRT™ accelerated processing     units in MERLIC tools with deep learning technology, MERLIC crashes     if the required memory for the deep learning model exceeds the available     memory on the GPU.
  

Legal Notes :

法律声明：

Intel, the Intel logo, OpenVINO, theOpenVINO logo, and Movidius are trademarks of Intel Corporation or itssubsidiaries.