[Enhancement] Huge performance (runtime and memory) optimization in QrCodeGenerator (PRs #509, #519, #520, #521, #524, #530, #532)
[Enhancement] Big performance (runtime and memory) optimization in BitmapByteQRCode (PR #566)
[Enhancement] Added ECC level mismatch detection when using payloads from payload generator (PR #526)
[Enhancement] Implementation of encoding constraints (EccLevel, EciMode) in SwissQRCode and GiroCode payloads to enforce that the payloads comply with the specifications of the respective standards (PR #533)
[Enhancement] Added support for trimming (IsTrimmable project property) (PR #539)
[Enhancement] Added XML comments (code documentation) to all public members (PR #561)
[Enhancement] Added new/third overload to PngByteQRCode that accepts colors as System.Drawing.Color (PR #564)
[Enhancement] Updated the Bitmap header from BITMAPCOREHEADER to BITMAPINFOHEADER in BitmapByteQRCode (PR #565)
[Refactoring] Restructured QRCodeGenerator classes into separate files and partially restructured code for better manageability (PRs #516, #528, #531)
[Refactoring] Restructured PayloadGenerator classes into separate files for better manageability (PR #556)
[Refactoring] Restructured the PayloadGeneratorTests into separate files for better manageability (PR #569)
[Refactoring] Removed category attribute from tests as it is no longer used/useful (PR #568)
[Refactoring] Improved code documentation by adding comments to generator methods (PR #517)
[Refactoring] Refactored and cleaned up the (needed for backwards compatibility) Stream- and String extension methods (PR #534)
[Refactoring] Added nullable reference type (NRT) metadata to all possible members (PR #559)
[Refactoring] Removed not longer necessary framework overrides in project files (PR #560)
[Refactoring] Reformatted code and added dotnet format toolchain (PR #562)
[Note] Added performance benchmark project to ensure that future enhancement don't affect performance negatively (PRs #508, #510)
Breaking Changes:
If the function GenerateQrCode(payload, eccLevel) is called and the payload has set an ECC level "X" that differs from the ECC level from the parameter eccLevel, the QRCoder now throws an ArgumentOutOfRangeException to prevent the contract violation in the context of the payload. (Previously, the EccLevel was taken from eccLevel parameter without further checking, which in the worst case could lead to unreadable payloads.)
[Enhancement] Added support for explicit WPA2 in PayloadGenerator.Wifi (PR #494)
[Enhancement] Added Linux support for PostscriptQRCode (PR #493)
[Enhancement] Added Linux support under .NET5 (or greater) for SvgQRCode incl. logo handling (PRs #490, #491)
[Enhancement] Improved README.MD and the examples in it (PRs #456, #481)
[Enhancement] Optimized performance of GenerateQrCode-function for payloads of type byte[] (PR #438)
[Enhancement] Added another overload of GetGraphic() to the ASCIIQrCode-renderer that allows to render smaller representations of the QR code graphic by pressing two rows of modules into one char (PR #384 with inspiration from #430)
[Enhancement] Added support for UTC DateTimes and DateTimeOffsets in CalenderEvent-payload generator (PR #499)
[Enhancement] Added support for non-Windows platforms on .NET6+ (or newer) in Base64QRCode (PR #495)
[Update] Updated the allowed character set for contacts/addresses in PayloadGenerator.SwissQRCode (PR #432)
[Update] Updated the valid country code list by XK for contacts/addresses in PayloadGenerator.SwissQRCode (PR #497)
[Bugfix] Changed linebreak behaviour after StrdBkgInf-field in PayloadGenerator.SwissQRCode as it is additional instead of optional since SwissQRCode standard version 2.2 (PR #411)
[Bugfix] Fixed bug in placement of finder patterns in ArtQrCode-renderer that occured when quietzones should be drawn and a custom finderPatternImage was set at the same time (PR #474)
[Bugfix] Fixed use of pixelSizeFactor in ArtQrCode-renderer, which had no effect before (PR #408)
[Bugfix] Fixed bug in ASCIIQRCode renderer that lead to mirrored/false rendering of ASCII QR codes (PR #476)
[Bugfix] Added missing url encoding of the issuer field in OneTimePassword payload generator (PR #391)
[Bugfix] Fixed 300 byte limit validator in PaymentOrder payload generator. Now only mandatory fields will be inspected. (PR #498)
[Bugfix] Fixed bug that lead to wrongly placed logo backgrounds when rendering a SvgQRCode with logo and disabled quietzones at the same time. (PR #502)
[Enhancement] Added net6.0 and net6.0-windows as target frameworks to avoid conflicts on applications that use QRCoder while targeting net6.0 on non-Windows platforms. (PRs #358, #359; Commits 2c78d05, 84afafc)
[Enhancement] Decoupled XamlQRCode from QRCoder-main, to avoid unnecessary Windows-dependencies on non-Windos platforms. (PRs #358, #359; Commits 2c78d05, 84afafc)
[Feature] New renderer called "ArtQrCode" for rendering QR codes with dots and background pictures (PRs #295, #344)
[Feature] Added new payload generator called "RussiaPaymentOrder", following the _56042:2014_-standard, that can be used to generate QR codes for payment purposes. (PR #338)
[Feature] New parameter/option to render a logo on SvgQrCodes (PRs #281, #346, #347)
[Enhancement] Added 'organization' and 'organization title' to the ContactData payload generator (PRs #276, #325)
[Enhancement] Added DataTooLong exception to warn users for too long payloads in combination with too small _requestVersion_-parameter (Commit 49d5b35)
[Enhancement] Improved performance and reduced filesize for SvgQrCodes (PR #265)
[Enhancement] Switched to new Whatsapp url scheme (https:/wa.me/...) in Whatsapp payload generator (PR #333)
[Enhancement] Added optional parameter to disable HEX-style escpaing in WiFi payload generator (PR #334)
[Enhancement] Added a new parameter for AsciiQrCode that allows suppression of the quiet zone/border around the code (PR #339)
[Enhancement] Added a new parameter for PngByteQRCode that allows suppression of the quiet zone/border around the code (PR #350)
[Enhancement] Improved coding of the Mail/SMS/MMS payload generators (PR #349)
[Bugfix] In some cases AsciiQrCodes weren't rendered well/lines were missing (PR #339)
[Bugfix] The parameter iconBorderWith on the QRCode-renderer stopped working (from QRCoder 1.4.0 on). It got fixed and works again. In addition a new parameter called iconBackgroundColor was added, which allows to set the background color of an icon. (PR #351)
[Enhancement] Added optional parameter in QRCodeGenerator.cs to force UTF-8 enconding for "Byte mode" encoded QR codes.
[Enhancement] By ISO/IEC standard ISO-8859-1 should be used as default for Byte mode encoding, but there are some QR code readers which expect UTF-8 encoded payload in every case. For those readers you can force UTF-8 text encoding now.