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Swift
Objective-C

Release Notes for C Edition - 9.x

9.6.40 (03/14/2024)

Improved

  • Updated the security of the DynamsoftBarcodeReader library and other corresponding dependent libraries.
  • Improved the multi-thread processing logic of concurrent instance licenses.
  • Improved the barcode decoding performance:
    • Improved the accuracy when decoding OneD & PDF417 barcodes.
    • Improved the readability of dense DataMatrix codes.

Fixed

  • Fixed crash bugs in the barcode decoding algorithm.
  • Fixed a bug where the location of the barcode result(s) might be incorrect.

Changed

  • Changed the error message of error DBRERR_PDF_DLL_MISSING from “The PDF DLL is missing” to “The PDF library could not be loaded”.
  • Added a new error code DMERR_LICENSE_CACHE_USED, which is returned when failing to connect to the license server but a valid license cache is available. Error codes DMERR_FAILED_TO_REACH_DLS and DMERR_LICENSE_SYNC_FAILED are no longer returned on this scenario.

9.6.30 (08/29/2023)

New

  • Added a new method DBR_GetInstancePoolStatus and struct InstancePoolStatus to provide a real-time view of how the concurrent instance licenses are being utilized. This applies only if you are using a concurrent instance license.

Improved

  • Optimized the concurrent instance management and license usage statistics when using a concurrent instance license.
  • Extended the availability of methods GetInstance and Recycle, making them accessible to all licensing modes.
  • Implemented additional checkpoints to ensure timely timeout and termination.

Fixed

  • Fixed a bug where barcode results varied depending on the operating system being used.
  • Fixed a crash bug when initializing a license with a segmented license string.
  • Fixed some bugs related to the barcode format settings when they are defined in the RegionDefinition object of the template.

9.6.20 (03/16/2023)

Fixed

  • Fixed a bug where the methods DBR_InitLicense and DBR_GetInstance may not work as expected when using concurrent instance license.
  • Fixed a bug where license authorization may fail when the main license server is not available.
  • Other small fixes and tweaks.

9.6.10 (01/10/2023)

New

  • Added a new method DBR_SetLicenseCachePath to support customizing the license cache saving path.
  • Add a new method DBR_GetDeviceUUID to support getting device UUID for license activating.
  • Added error code DMERR_LICENSE_BUFFER_FAILED to the potential error list of the license activation methods and decode methods. The error code is returned when the directory of the license cache is inaccessible.

Improved

  • Improved the performance of Direct Part Marking (DPM) barcode decoding.
  • Improved the performance of GS1 Databar barcode decoding.

Fixed

  • Fixed a crash bug when using a online license key on ARM64 environment.
  • Fixed a crash bug when using a online license key on the AWS lambda environment.
  • Fixed a bug that some OneD barcodes without start & stop characters are not decoded when parameter RequireStartStopChars is set to 0.
  • Other small fixes and tweaks.

9.6.0 (11/29/2022)

Version Highlights

  • Image orientation handling is supported by a new feature. With the new feature, you can:
    • Get a TranformationMatrix along with the barcode location result.
    • Implement coordinates transformation on the barcode location result with the TransformationMatrix.
  • DotCode decoding is improved by optimizing the localization of DotCodes that are close to one another.
  • EAN8 barcode decoding is improved by honing the accuracy of localization algorithms.
  • QR code localizing is improved by reducing the mis-assemble rate of the finder patterns when using the localization mode LM_CONNECTED_BLOCK or LM_SCAN_DIRECTLY, which are designed for speed. The mis-assembling only occurs when there exist dense QR codes on the same image.
  • Mirrored rectangular DataMatrix barcode is supported by implementing MirrorMode when localizing the barcodes.
  • Deformed barcode decoding is improved by extending the supported modes and mode arguments of DeformationResistingModes.

Edition Highlights

  • Added duplicate barcode filter feature in video mode. You can implement duplicate filter to ignore duplicate barcodes for a period.

Changelog

New

  • Added a property orientation to struct FrameDecodingParameters to set the orientation information of the video frame.
  • Added orientation to struct ImageData to set the orientation information.
  • Enabled decoding methods DBR_DecodeFile(), DBR_DecodeFileinMemory() and DBR_DecodeBase64String() to read EXIF data of the given image so that the library can obtain the orientation information of the image file.
  • Added a property transformationMatrix to struct LocalizationResult so that the library can output a transformation matrix for transforming the localization coordinates to image’s natural orientation.
  • Added a method DBR_TransformCoordinates() to support transforming the coordinates of a point based on a given transformation matrix.
  • Added a method DBR_DecodeImageData() to enable decoding barcodes from source image defined as ImageData.
  • Added a property duplicateForgetTime to struct FrameDecodingParameters to set the time period used to filter out duplicate results found in frames.
  • Added a method DBR_SetUniqueBarcodeCallback() to set callback function to obtain unique barcode result.
  • Added properties hasLeftRowIndicator and hasRightRowIndicator to struct PDF417Details to return whether the left and right row indicator of the PDF417 barcode is detected.
  • Added a member BF2_ALL to enumeration BarcodeFormatIds_2 to support setting all barcode formats in BarcodeFormat group 2 with one enumeration.
  • Extended the features of parameter DeformationResistingModes:

Improved

  • Improved the accuracy when processing multiple QR codes.
  • Improved the processing speed by excluding incorrectly located barcode zones before decoding.
  • Improved the creation, destruction and acquisition logic of concurrent instances.
  • Improved the accuracy of EAN8 localization result(s).
  • Improved the localization of mirrored DataMatrix barcode by implementing MirrorMode.

Fixed

  • Fixed a bug that DotCodes might not be decoded when they are densely arranged.
  • Fixed a crash bug when trying to output a template which included BarcodeTextRegExPattern.
  • Other small fixes and tweaks.

9.4.0 (08/30/2022)

Highlights

  • DotCode decoding has been improved by optimizing the localization and decoding algorithm.
  • Stacked, skewed or perspective distorted OneD barcode decoding has been improved.

Changelog

New

  • Added an argument IsOneDStacked to LM_SCAN_DIRECTLY to process stacked OneD barcodes.
  • Added a parameter PatchCodeSearchingMargins to specify the searching area of PatchCode.
  • Added the supported data format of FormatSpecification.PartitionModes to enhance the readability of the parameters. Users can use a list of enumeration names to specify the PartitionModes.

Improved

  • Improved the localization mode LM_LINES to better support skewed and perspective OneD barcodes.
  • Enhanced tamper resistance of the license keys so that any change to the license string makes it invalid.

Deprecated

9.2.0 (06/07/2022)

Highlights

  • Barcode boundary-seeking algorithm is refactored to improve stability.
  • Pharmacode decoding is optimized to improve accuracy.
  • The function of device-alias is added to allow users to give each device a readable name. For end-users and administrators, this makes it more friendly to distinguish between devices about license usage statistics.

Changelog

New

Fixed

  • Fixed a bug that DBR_InitLicense failed when using online license on Linux ARM 32-bit system.

9.0.0 (03/15/2022)

Highlights

  • Simplified the license activation steps. Different license activation APIs are integrated into initLicense method.
  • Added support for Pharmacode.
  • Added support for Code 11, a 1D format.
  • Deformation resisting modes DRM_BROAD_WARP, DRM_LOCAL_REFERENCE and DRM_DEWRINKLE are optimized and detached from DRM_GENERAL. Users can specify a more effective deformation resisting mode when processing QRCode and DataMatrix codes.
  • Optimized the confidence scoring system for PDF417 codes.

Changelog

New

Changed

  • Changed value of BF_ONED under Enumeration BarcodeFormat to 0x003007FF to have BF_CODE_11 combined.
  • Changed value of BF_ALL under Enumeration BarcodeFormat to 0xFE3FFFFF to have BF_CODE_11 combined.
  • Changed the behaviour of DeformationResistingMode DRM_GENERAL which now only applies basic process to resist deformation.
  • Changed the return value of the method DBR_GetIdleInstancesCount from 0 to -1 when the available count needs to be updated from server by calling DBR_InitLicense.

Fixed

  • Fixed a bug that might cause a crash when using multiple threads for barcode decoding.
  • Fixed a bug that Function Code 1 (FNC1) character would not return if it was in the first position of GS1-128 codes.
  • Other small fixes and tweaks.

Breaking Change(s)

  • DBR_InitLicense now needs two more parameters to return detailed error message.

Deprecated

The following items are now deprecated. They still work in this version but could be removed in the near future.

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