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Version 1.06 2012-10-04
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- PHP TCPDF class has been updated (5.9.180 => 5.9.193)
* composer.json file was added
* Subset feature was extended to include the first 256 characters.
* bug fix related to cached images and a new composer file.
* bug fix related to font names
* bug fix related "Infinite loop in Write() method"
* bug fix related to EAN barcodes
* bug fix related datamatrix barcode
* bug fix related "ini_get safe_mode error"
* buf fix related to Image() method.
* includes support for named destinations on HTML links.

Main features
- all standard page formats, custom page formats, custom margins and units of measure.
- UTF-8 Unicode and Right-To-Left languages.
- methods to publish some XHTML + CSS code, Javascript and Forms.
- images, graphic (geometric figures) and transformation methods.
- supports JPEG, PNG and SVG images natively, all images supported by GD (GD, GD2,
GD2PART, GIF, JPEG, PNG, BMP, XBM, XPM) and all images supported via
ImagMagick (http: http://www.imagemagick.org/www/formats.html).
- 1D and 2D barcodes: CODE 39, ANSI MH10.8M-1983, USD-3, 3 of 9, CODE 93, USS-93,
Standard 2 of 5, Interleaved 2 of 5, CODE 128 A/B/C, 2 and 5 Digits UPC-Based Extention,
EAN 8, EAN 13, UPC-A, UPC-E, MSI, POSTNET, PLANET, RMS4CC (Royal Mail 4-state Customer Code),
CBC (Customer Bar Code), KIX (Klant index - Customer index), Intelligent Mail Barcode,
Onecode, USPS-B-3200, CODABAR, CODE 11, PHARMACODE, PHARMACODE TWO-TRACKS,
Datamatrix ECC200, QR-Code, PDF417.
- ICC Color Profiles, Grayscale, RGB, CMYK, Spot Colors and Transparencies.
- automatic page header and footer management.
- document encryption up to 256 bit and digital signature certifications.
- transactions to UNDO commands
- PDF annotations, including links, text and file attachments.
- text rendering modes (fill, stroke and clipping).
- multiple columns mode.
- no-write page regions.
- bookmarks and table of content.
- text hyphenation.
- text stretching and spacing (tracking/kerning).
- automatic page break, line break and text alignments including justification.
- automatic page numbering and page groups.
- move and delete pages.
- page compression (requires php-zlib extension).
- XOBject templates.
- PDF/A-1b (ISO 19005-1:2005) support.

If somebody can work on it it would be great.

2.5.6 & 2.6.0 must support only UTF-8. Those thing was planed for 2.4.x, but still is not fully implemented. There is no coexistence between utf-8 and iso, both are not acceptable. There was several reasons in past to hack 2.0.18 and to provide additional patches with every translation made in UTF-8 by me for 2.0 core. ISO is no longer welcome anywhere.