​Robust Barcode Scanner SDK with Flexible APIsWhether it’s distorted, dark, distant, blurred, DPM, batch or moving, we can scan it. At speed.Engineered for High-Performance Barcode ScanningScan 500 Barcodes per Minute--Dynamsoft_Barcode_Reader_PythonAchieve industry-leading speed with our barcode scanner SDK—optimized for:Live video streams with multiple barcodesPDF files in automated workflowsStatic images from high-resolution industrial camerasMulti-barcode support ensures high efficiency across use cases.​11.4.3000 (06/30/2026)Security UpdatesUpdated third-party libraries to incorporate the latest security fixes.11.4.2001 (04/17/2026)Security UpdatesUpdated third-party libraries to incorporate the latest security fixes.11.4.2000 (03/18/2026)Security UpdatesUpdated third-party libraries to incorporate the latest security fixes.Bug FixesFixed an issue where the SDK might attempt to load corrupted model resource files in rare cases.11.4.1000 (02/05/2026)HighlightsAI-Powered Barcode Detection and DecodingPDF417 Localization Model– Introduces the PDF417Localization neural network model for improved detection of PDF417 barcodes, especially under challenging conditions.Code39/ITF Decoding Model– Adds the Code39ITFDecoder model for enhanced decoding of Code 39 and ITF barcodes under blurred or low-resolution conditions.Deblur Models for 2D Barcodes– Adds the DataMatrixQRCodeDeblur and PDF417Deblur models to provide more effective recovery from motion and focus blur for DataMatrix, QR Code, and PDF417 barcodes.ECI (Extended Channel Interpretation) SupportECI Information Return– Adds support for retrieving Extended Channel Interpretation (ECI) data from barcodes. The new ECISegment class, along with theget_eci_segments()method in the BarcodeResultItem and DecodedBarcodeElement classes, enables access to character encoding information embedded in barcodes.ECI-Based Text Interpretation– Adds support for interpreting ECI segments during barcode decoding, improving compatibility with international character sets.Performance ImprovementsOn-Demand Model Loading– Implements lazy loading for AI models, reducing initialization time by loading models only when first needed.Smart Model Selection– Models are now loaded based on configured barcode formats, minimizing memory usage by excluding unused models.Improved Confidence Scoring– Enhances confidence score calculation for results from neural network models, providing more accurate quality indicators.DPM Barcode Optimization– Improves recognition rate for Direct Part Marking (DPM) barcodes commonly used in industrial and manufacturing environments.NewAdded support for Python 3.14.Added BarcodeZoneWidthToHeightRatioRangeArray parameter for filtering barcodes based on aspect ratio constraints.Added set_result_cross_verification_criteria() and get_result_cross_verification_criteria() methods toMultiFrameResultCrossFilterfor configurable multi-frame result verification.Changedcapture_multi_pagesnow returns results sorted by page number.Barcode text encoding fallback changed from UTF-8 to ISO-8859-1 when no ECI information is present in the barcode.Updated default value ofcompensationparameter in ImageProcessor.convert_to_binary_local() from 0 to 10.convert_to_binary_global() and convert_to_binary_local() ofImageProcessorclass now support color, binary and grayscale images as input.ImprovedImproved license binding stability on macOS devices.RemovedRemovedDataMatrixModuleIsotropicparameter – use BarcodeZoneWidthToHeightRatioRangeArray instead.RemovedMinRatioOfBarcodeZoneWidthToHeightparameter – use BarcodeZoneWidthToHeightRatioRangeArray instead.FixedFixed incorrect coordinate in barcode result when using neural network models with a specified region.Fixed crash and hang issues that could occur in certain scenarios.Fixed various minor bugs and improved overall stability.11.2.5000 (12/16/2025)This release includes security maintenance updates to ensure continued protection of the product.Security UpdatesUpdated third-party libraries to incorporate the latest security fixes.Bug FixesFixed memory leak, crash, and hang issues in various scenarios.Improved stability in multi-threading operations.