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2025-03-14
* The high-level encoder for Maxicode was replaced with a new algorithm that may result in significantly shorter messages.
* The Aztec Code encoder was fixed so that punctuation compression works correctly after a binary sequence.
2024-11-16
* The GS1 AI linter now reports the mandarory association specification that is not being met.
2024-10-13
* The baseline of EAN/UPC addons is now correctly aligned with the guard bars in the primary symbol.
2024-08-17
* Support for HRI text was added to the GS1 Digital Link variant symbologies.
2024-08-15
* Support for extra text was added to the renlinear and renmatrix renderers.
2024-07-20
* The QR Code encoder was amended to opportunistically raise the error correction level when better fit to the matrix possible.
2024-07-07
* The renders were amended to lookup default colours from the global context when unset and available.
2024-07-06
* The renlinear render was amened to not apply inkspread compensation in the vertical direction.
* The composite encoders were amended to not clobber the separator pattern when a background colour is set.
2024-07-05
* The renderers were amended to apply inkspread compensation to the no-border background.
2024-07-04
* The renderers were amended to not stretch the background when no border or bearer is present.
2024-06-18
* The QR Code encoder was amended to avoid encoding certain double byte pairs using Kanji Mode encoding.
2024-06-14
* The QR Code was fixed so that certain message characters will not be erroneously adopted as the low-order byte of a Kanji Mode pair.
2024-06-05
* Hex digit evaluation via data as code constructions were removed from the GS1 linter and renderers.
2024-04-31
* Support for named colours was added to the renderers.
2024-04-23
* The GS1 DL URI linter now permits an uppercase scheme.
2024-01-03
* The default whitespace guard position, test position and border positions for standalone EAN/UPC add ons was amended to align with their use alongside EAN/UPC symbols.
2023-12-25
* The GS1 Digital Link validation no longer allows an AI to be specified as a regular attribute (within query parameters) if it would be a valid key qualifier (within path information).
2023-12-11
* The GS1-128 Composite, GS1 Expanded Stacked Composite and GS1 North American Coupon Code symbologies were fixed to honour the parse options for their 2D component.
2023-12-07
* A workaround was introduced to address an issue with the packager creating a broken resource due to improper binarisation of large integers.
2023-07-23
* A showbearer option was added to the linear encoder to render bearer bars above and below the symbol.
* The ITF-14 encoder was amended to ensure that border and bearers in their default position will touch the bars when default inkspread is used.
2023-07-12
* The Aztec Code encoder was fixed to allow encoding of long messages that end with binary data.
* The GS1 AI linter was realigned with the latest release of the GS1 Syntax Dictionary.
* The EAN and UPC encoder variants were amended so that exterior digits and guard symbols better protect the quiet zone.
* The default options for the border positions were amended to align with the symbology-specfic quiet zones, where appropriate.
* The border options were enabled for the Maxicode symbology.
* The matrix and maximatrix renderer were altered to provide a small amount of inkspread compensation by default.
2023-07-05
* The renlinear renderer was changed so that any border is plotted outside of the zone defined by the border{left,right,top,bottom} options and so that inkspread is applied to the border.
* Border support was added to the renmatrix renderer.
2023-06-22
* The MaxiCode encoder was amended to apply hexagon size reduction which can be adjusted by inkspread.
* The MicroPDF417 encoder was improved to provide automatic Macro 05/06 compression of structured data.
2023-04-11
* Input validation fixes where applied to the Australia Post 4-State barcode, KIX, Code 11, Japan Post, Code 39, Code 39 Extended, Code 2 of 5, DataBar family, EAN-14, SSCC-18, Plessey, Posicode, Codabar, Composite Component, DAFT and HIBC symbologies.
2023-04-03
* The MSI symbology was fixed to permit the madmod11 options with the mod11 check type.
* The Data Matrix encoder was fixed.
* The PDF417 symbology was fixed to perform ECC levels from 0 to 8.
* The Code 49 symbology option concat was renamed to append.
2023-04-01
* User option validation was added to Code 93 Extended, Codablock F, GS1-128, US Postal Service Intelligent Mail, Code 16K, Code 49, MSI, Code One, GS1 Composite Components, Hanxin, DotCode, GS1 DataBar Omnidirectional and GS1 DataBar Expanded.
* The GS1 AI linter was realigned with the latest release of the GS1 Syntax Dictionary, including the addition of a linter for AIDC media types.
2023-03-26
* User option validation was added to PDF417 and MicroPDF417.
2023-03-24
* User option validation was added to Maxicode and the Australian Postal 4-state barcode.
2023-03-23
* The version information for QR Code version 33 symbols was fixed.
* User option validation was added to the Telepen and Japan Post QR Code.
* A font sizes less than or equal to zero is now forbidden.
2023-03-20
* User option validation was added to the QR Code, Aztec Code and Data Matrix encoders.
* Aztec Code was amended to generate only full-range symbols by default.
* Support for legacy DIN DMRE models was removed from Data Matrix.
2023-03-16
* User input validation was added to the setting of RGB and CMYK colours.
2023-02-16
* The mailmark option in the Data Matrix encoder was replaced with a generic c40headerlength option.
2022-10-19
* The GS1 North American Coupon Code symbology was fixed.
2022-10-15
* The text positioning options for renlinear and renmatrix were fixed.
2022-10-14
* The value type validation of the options parser has been further improved.
2022-10-13
* The vertical position of the left whitespace guard was fixed.
* User input validation was added to JapanPost and Code 93.
2022-10-10
* The options parser has improved value type validation.
2022-09-28
* Documentation updates only, to reflect GS1 example data ranges.
2022-09-26
* No user-visible changes.
2022-09-18
* The Composite symbologies now honour the dontdraw option.
2022-08-21
* The codeword generation for QR Code and Micro QR Code symbols was optimised.
2022-07-29
* GS1 data processing was significantly refactored.
2022-07-25
* The GS1 linter was extended to add support for Digital Link URIs.
* Helper encoder for GS1 Digitial Link URI variants of QR Code and Data Matrix were added.
2022-07-20
* Mandatory AI linting is now disabled by default and can be enabled using the new lintreqs option.
2022-07-18
* The GS1 linter was fixed to work with GS1 DataBar Truncated Composite Composite symbols by considering the combined AI element string.
* A GS1 linter error message was fixed.
2022-07-17
* The GS1 linter was fixed to work with Composite symbols by considering the combined AI element string.
2022-07-16
* The GS1 linter was enhanced to apply mandatory and exclusive AI association rules.
2022-07-06
* A mechanism for preserving initialisation data between encoder invocations was added.
2022-07-01
* The parse option was extended to perform replacement of control character names such as ^NUL and ^RS with their ASCII value.
2022-06-10
* The horizontal alignment of text in matrix symbols was fixed.
* Various fixes were made for the encoding of Data Matrix, DotCode and Micro QR Code symbols.
* The encoding of QR Code symbols was optimised.
* The encoding of Rectangular Micro QR Code symbols was aligned with the final release of the specification.
2022-04-04
* The linear render now uses filled polygons rather than stroked lines.
* Code 93 Extended was amended to not shift encode "$%+/" symbols.
* Support was added for USPS FIM E marks.
* Support for AI (715) was added to the GS1 linter.
2021-09-28
* Ultracode tile colours are now defined as RGB rather than CMYK. New tile colour patterns are defined for the upcoming revision.
* A bug in the encoding of certain Aztec Code symbols was fixed.
* A bug in the encoding of certain Dotcode symbols was fixed.
* A bug in the encoding of QR Code symbols containing Kanji compression was fixed.
* The rMQR encoding was optimised, potentially resulting in smaller symbols.
2021-07-15
* The colours for Ultracode symbols were changed to RGB values rather than CMYK.
2021-07-14
* The metrics for Ultracode symbols was updated and a raw mode was added.
2021-02-06
* Linting of GS1 AI (4308) was fixed.
* Linting of the check character pair for AI (8013) was added.
2021-01-15
* Linting for GS1 coupon AIs (8110) and (8112) was added.
2021-01-05
* Linting for GS1 AI syntax data was expanded and fixed.
2020-12-28
* A convenience encoder for GS1 DotCode was added.
2020-12-26
* GS1 Composite Component symbols were fixed.
2020-12-25
* Linting was added to GS1 Composite Components.
2020-12-24
* Linting for GS1 AI syntax data was added.
2020-12-09
* A bug in the compact encoding methods 0110X for GS1 DataBar Expanded formats was fixed.
2020-10-23
* The parse and parsefnc options are now processed by a single routine that allows their escape patterns to coexist in the input data.
* Bugs in ECI processing with PDF417 and MicroPDF417 were fixed.
* A bug in the seperator pattern for GS1 DataBar Expanded Stacked Composite was fixed.
2020-10-11
* A bug in leaving punctuation mode in Aztec Code was fixed.
2020-10-02
* An inefficiency in the QR Code encoding was fixed.
* ECI support was added to Code One.
2020-09-13
* A bug in Data Matrix for ECI checks at end of data was fixed.
2020-09-11
* ECI support was added to Data Matrix, Aztec Code, QR Code, PDF417, MicroPDF417, Maxicode and DotCode.
* GS1 DataBar Limited was updated to include a righthand whitespace guard.
* Code 32 was fixed to avoid overwriting the provided barcode string.
2020-07-20
* A new encoder for Swiss QR Code was added.
* The Codablock F encoding was optimised potentially resulting in smaller symbols.
2020-07-09
* The GS1 DataBar Stacked, GS1 DataBar Stacked Omnidirectional and GS1 DataBar Expanded Stacked separator patterns were fixed.
* A bug in GS1-128 that sometimes prevented encoding with a Composite Component was fixed.
* Bugs in GS1 Composite Component encoding were fixed.
2020-04-01
* The GS1 QR Code encoder was fixed.
2020-03-08
* Changes were required to the package build script due to new defaults in recent versions of GhostScript.
* Preliminary support for the Rectangular Micro QR Code symbology was added.
2019-11-08
* The encoders were amended to workaround a non-standard operator on Harlequin RIPs.
2019-10-31
* A distict encoder was added for Data Matrix Rectangular Extension.
2019-10-29
* The Data Matrix encoder was enhanced to include the ISO formats for DMRE.
2019-10-13
* A crash with a certain encoding of data in GS1 Databar Expanded based symbologies was fixed.
2019-10-10
* A bug in the Code 128 encoder when composite component linkage flags were used with data terminating in mode C was fixed.
2019-09-24
* An encoder for the Royal Mail Mailmark symbology was added.
2019-08-05
* The performance of the renmatrix renderer was slightly optimised.
2019-08-03
* The performance of the renmatrix renderer was significantly improved.
2019-04-24
* A recent regression in the Data Matrix encoder was fixed.
2019-04-23
* The Data Matrix encoder was fixed to avoid certain cases where switching between C40, Text and X12 encoding might latch repeatedly.
2018-08-27
* Preliminary support for the JAB Code symbology was added.
2018-07-27
* The raw option was added to the Data Matrix encoder.
2018-05-20
* The base size of Ultracode symbols was increased.
* Support for symbols composed of dots was added to the renmatrix renderer.
* The DotCode encoder was amended to use the dotty matrix feature.
* A bug in the DotCode encoder's handling of FNC3 message separator characters was fixed.
* The DotCode encoder was fixed to support optimised handling of "FNC1 in First" for leading numeric input.
2018-02-04
* The performance of the Channel Code encoder was improved.
* The base symbol size of the DotCode encoder was increased.
2017-11-15
* The DotCode encoder was enhanced to fix weaknesses with the mask evaluation algorithm.
* The Channel Code encoder checksum calculation for channels 4 and 7 was fixed.
2017-10-19
* Fixed end of data region encoding error with EDIFACT encoding in Data Matrix.
2017-10-14
* Preliminary support for the Ultracode symbology was added.
* The renmatrix renderer was improved to support colour symbols.
2017-07-10
* The DotCode encoder was fixed so that a symbol will generate even when all masked variants have negative evaluations.
2017-06-25
* The DotCode encoder high-level optimisation was improved.
2017-06-21
* The DotCode encoder was fixed so as not to incorrectly enable macro compression for inputs beginning with certain characters.
2017-06-20
* The DotCode encoder was fixed to properly encode 17xxxxxx10 patterns.
2017-06-18
* The DotCode encoder was optimised to minimise the symbol size.
2017-06-09
* The Data Matrix encoder was fixed to ensure that it correctly unlatches from EDIFACT encoding when the symbol isn't full.
2017-06-07
* The DotCode encoder was fixed to work with PS VMs without huge integers.
2017-06-06
* Preliminary support for the DotCode symbology was added.
2017-04-04
* The GS1 North American Coupon encoder was fixed to support the textyalign option.
2017-04-03
* Support for the GS1 North American Coupon barcode was added.
2017-03-25
* Symbologies accepting GS1 Application Identifier formatted data were fixed so as not to clobber successive field values when multiple identical AIs are given.
2016-12-16
* The ISSN encoder was fixed to correctly parse the sequence variant and addon components.
2016-12-15
* The GS1 DataBar Stacked Omnidirectional and GS1 DataBar Expanded Stacked encoders were extended with a barxmult option to allow the generation of symbols with non-standard bar heights.
2016-11-18
* An error preventing the generation of type-S symbols was fixed in the Code One encoder.
2016-11-02
* The QR Code encoder was amended to evaluate the mask patterns with the lone dark module unset.
2016-09-29
* A bug that resulted in FNC1 characters always being encoded in byte mode when ASCII mode was appropriate was fixed.
2016-08-29
* A bug in the encoding of some QR Code symbols introduced by the previous change was fixed.
2016-08-27
* A bug in the encoding of some QR Code symbols having bytes in the ranges 81-9F and/or E0-EB was fixed.
2016-07-20
* inkspreadh and inkspreadv options were added to the matrix renderer.
2016-07-19
* The matrix render was enhanced to produce the minimal number of filled polygons. The inkspread option is now supported.
2016-06-03
* The DataMatrix encoder was improved to provide automatic Macro 05/06 compression of structured data.
2016-04-21
* The Han Xin encoder was fixed to not overflow the stack with large symbols.
2016-04-20
* Support for Han Xin code was added.
2016-03-31
* The Data Matrix encoder was amended to support the new symbol sizes introduced by DMRE (Data Matrix Rectangular Extension).
2016-03-29
* Distinct encoders for rectangular formats of Data Matrix derivatives were added.
* Support for the HIBC Aztec Code symbology was added.
2016-03-28
* The Data Matrix encoder was amended to allow the user to specify either format=square or format=rectangle.
2015-11-24
* A bug in the generation of certain M1 and M3 Micro QR Code symbols was fixed.
* The QR Code encoder was amended to allow the selection of a specific mask.
2015-08-10
* The Data Matrix encoder was amended to make version=RxC synonymous with rows=R columns=C.
* The MicroPDF417 encoder was amended to make version=CxR synonymous with rows=R columns=C.
2015-07-14
* A bug in the input validation of Code 39 Extended symbols was fixed to permit symbols containing fewer than four characters.
2015-05-23
* The Codablock F encoder was improved to perform automatic encoding of extended ASCII data using FNC4.
2015-05-22
* The PosiCode encoder was improved to perform automatic encoding of extended ASCII data using FNC4.
* The Code 16K encoder was improved to perform automatic encoding of extended ASCII data using FNC4.
2015-05-21
* The Code 128 encoder was improved to perform automatic encoding of extended ASCII data using FNC4.
2015-05-16
* The Code One encoder was optimised to minimise the symbol size.
* A minor improvement was made to the Data Matrix optimised encoding.
2015-05-09
* The Code One encoder was amended to allow direct entry of values for type-S symbols.
2015-03-24
* The ITF-14 encoder was amended to permit spaces in the human readable text.
2015-03-23
* The SSCC-18 and EAN-14 encoders were amended to permit spaces in the human readable text.
2015-02-18
* The PDF and HTML documentation has been significantly refreshed and is now built directly from wiki content. It is included in the release tarballs.
2015-01-15
* Convenience encoders for Compact PDF417, Compact Aztec Code and Aztec Runes were added.
2014-12-29
* A convenience encoder for Telepen Numeric was added.
2014-12-27
* Convenience encoders for Micro QR Code, Industrial 2 of 5, IATA 2 of 5, Matrix 2 of 5, COOP 2 of 5 and Datalogic 2 of 5 were added.
2014-12-11
* A bug resulting in the failure to encode certain characters in QR Code was fixed.
2014-11-12
* The UPC-A encoder was amended to automatically expand UPC-E input.
* The UPC-E encoder was amended to automatically compress UPC-A input.
2014-11-08
* The UPC-A encoder was amended to expand UPC-E input using the expandupce option.
* The UPC-E encoder was amended to compress UPC-A input using the compressupca option.
2014-08-15
* Remove some unused code.
* This project is dedicated to the memory of Craig K. Harmon. https://qed.org/ckh
2014-07-30-1
* Incorrect character mappings for TEXT and C40 encodings in Data Matrix were fixed.
2014-07-30
* The Data Matrix encoder was optimised to minimise the symbol size.
2014-07-15-1
* A bug in the QR Code encoder was fixed.
2014-07-15
* The QR Code encoder was optimised to minimise the symbol size.
2014-06-30-1
* The MicroPDF417 encoder was optimised to minimise the symbol size.
2014-06-30
* The PDF417 encoder was optimised to minimise the symbol size.
2014-06-20-1
* A bug in the Aztec Code encoder was fixed.
2014-06-20
* A bug in the Aztec Code encoder was fixed.
2014-06-18
* The Aztec Code encoder was optimised to minimise the symbol size.
2014-03-12
* A bug in the calculation of the checksum of HIBC symbols was fixed.
2014-03-11
* Support was added for the GS1 QR Code symbology.
* Input validation was added to the ISBN, ISMN and ISSN symbologies.
2014-01-30
* The ITF-14 encoder was amended to allow override of the height, borderleft, borderright and textyoffset properties.
2014-01-19
* VMusage was added to the DSC data.
* DSC comments were added to the non-packaged resources.
2014-01-07
* The barcolor and backgroundcolor options were enabled for Maxicode symbols.
2014-01-06
* The renmatrix renderer has been updated to generate 2D symbols using paths.
* The colour option for 2D symbols was renamed from "color" to "barcolor".
2014-01-03
* The arguments to the imagemask operator where changed to explicitly disable image interpolation.
2013-10-06
* Support for C40, TEXT and X12 encodings was added to the Data Matrix symbology.
2013-07-15
* Removed the incomplete input validation from the Telepen symbology.
2013-06-12
* The REQUIRES metadata from databartruncated was fixed.
2013-06-07
* Input validation was added to the Flattermarken symbology.
2013-06-03
* Input validation was added to the Channel Code symbology.
2013-06-02-1
* Input validation was added to the HIBC Code 39, HIBC Code 128, HIBC Data Matrix, HIBC PDF417, HIBC MicroPDF417, HIBC QR Code and HIBC Codablock F symbologies.
2013-06-02
* Code 39 input validation was fixed.
2013-06-01-1
* Input validation was added to the USPS POSTNET and USPS PLANET symbologies.
2013-06-01
* Input validation was added to the KIX symbology.
2013-05-31
* Input validation was added to the RM4SCC symbology.
2013-05-30-3
* Input validation was added to the Plessey UK symbology.
2013-05-30-2
* Input validation was added to the GS1 DataBar Limited symbology.
2013-05-30-1
* Input validation was added to the GS1 DataBar Omnidirectional, GS1 DataBar Stacked, GS1 DataBar Stacked Omnidirectional and GS1 DataBar Truncated symbologies.
2013-05-30
* Input validation was added to the Codabar symbology.
* An altstartstop option was added to the Codabar symbology.
2013-05-29-2
* Input validation was added to the symbol, raw and DAFT encoders.
2013-05-29-1
* Input validation was added to the Code 11 symbology.
2013-05-28-2
* Input validation was added to the Code 39 Extended symbology.
2013-05-28-1
* Input validation was added to the Code 39 symbology.
2013-05-28
* Input validation was added to the BC412 symbology.
2013-05-27-1
* The validatecheck option was fixed in the Code 2 of 5 symbology.
2013-05-27
* Input validation was added to the Pharmacode, Two-track Pharmacode and Code 2 of 5 symbologies.
2013-05-25
* Input validation was added to the EAN-14, SSCC-18, Italian Pharmacode and PZN symbologies.
2013-05-24-2
* The PREAMBLE section was changed into RESOURCE metadata.
2013-05-24-1
* The renderers are now included in the REQUIRES metadata.
2013-05-24
* Input validation was added to the Interleaved 2 of 5, ITF-14, Leitcode and Identcode symbologies.
2013-05-23
* Input validation was added to the EAN-13, EAN-8, UPC-A, UPC-E, EAN-5 and EAN-2 symbologies.
2013-05-22
* The EAN-8, UPC-A and UPC-E check digits are validated if provided.
2013-05-21
* The EAN-13 check digit is validated if provided.
2013-05-20-1
* The SUGGESTS metadata fields were changed to REQUIRES.
2013-05-20
* The initial error handling facility was added.
2013-05-19
* Fixed generic named resource definition when packed arrays are not available.
2013-02-27
* The ISSN encoder was modified to permit a five digit addon.
2013-01-25
* A bug in the generation of the mode message for Aztec Code symbols performing reader initialisation was fixed.
2013-01-17-1
* The isbnfont. isbnsize and isbnpos options were changed to isbntextfont, isbntextsize and isbntextyoffset respectively for the ISBN symbology. Similar changes were made to the ISMN and ISSN symbologies.
* An isbntextxoffset option was added to the ISBN symbology. Similar changes were made to the ISMN and ISSN symbologies.
2013-01-17
* The textxalign option was enabled for EAN-13, EAN-8, UPC-A and UPC-E.
* The addontextxoffset, addontextyoffset, addontextfont and addontextsize options were added for EAN-13, EAN-8, UPC-A and UPC-E.
2012-12-12
* The encoding of numeric data following an FNC1 codeword was fixed in the GS1 DataBar Expanded and GS1 Composite Component symbologies.
2012-11-15
* renlinear was modified to avoid a clash with a predefined name in Distiller.
2012-06-26
* The QR Code encoder was modified to opportunistically raise the error correction level when this does not increase the symbol size.
* The QR Code encoder was modified to that Micro QR Code symbols do not require the use of raw mode.
* The default error correction level for Micro QR Code symbols was changed to L.
2012-06-25
* The QR Code encoder was modified to select an optimal encoder based on the data.
2012-06-24