{"id":183809,"date":"2026-10-13T16:53:22","date_gmt":"2026-10-13T14:53:22","guid":{"rendered":"https:\/\/prohoster.info\/blog\/news\/reliz-shriftovogo-dvizhka-freetype-2-15"},"modified":"2026-10-13T16:53:27","modified_gmt":"2026-10-13T14:53:27","slug":"freetype-2-15-font-engine-released","status":"publish","type":"post","link":"https:\/\/prohoster.info\/en\/blog\/news\/freetype-2-15-font-engine-released","title":{"rendered":"Release of the FreeType font engine 2.15","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"
After a year of development, FreeType 2.15.0 is released, a modular font engine providing a unified API for standardizing the processing and rendering of font data in various vector and raster formats. The project code is written in C and is distributed under a BSD-like FreeType license. <\/p>\n
Among the changes:<\/p>\n
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Support for the fifth edition of the ISO Open Font format (ISO\/IEC 14496-22:2026) has been added, ported using AI from the HarfBuzz glyph layout library and other implementations. Unlike the fourth edition released in 2019, the new version of the Open Font format allows for over 65536 glyphs; a 'GLYF' table for outlines combining cubic and conic segments has been added; a more compact 'VARC' table has been proposed, which reduces the size of variable fonts with glyphs by 90%.\n
In the rasterizer, which provides smoothing, dynamic memory allocation for large glyphs has significantly increased the rendering performance for glyphs larger than 40 ppem.\n
An experimental driver for HVF (Hierarchical Variation Font) fonts has been added, provided by Apple and currently only operational on macOS.\n
The TrueType format interpreter has expanded support for ClearType text smoothing technology, improving the rendering quality of fonts such as 'Comic Sans MS', 'Segoe UI', 'Calibri', 'Corbel', 'Constantia', 'Malgun Gothic', and 'SimSun'. It ensures the use of data from the gasp table (Grid-fitting and Scan-conversion Procedure) for smoothing and pixel grid alignment, enhances the emulation of ClearType horizontal hinting, and improves processing of glyph rounding instructions (ROUND) and control value table (CVT) applications.\n
A port for the Plan 9 operating system has been added.\n
Vulnerabilities have been addressed: CVE-2026-95512 \u2014 memory exhaustion and high CPU load when processing specially crafted CID format fonts; CVE-2026-50811 \u2014 out-of-bounds read when using the TT_Get_Var_Design and T_Get_Var_Design_Coordinates functions; CVE-2026-27171 \u2014 vulnerability in legacy embedded code from zlib causing infinite loops.\n<\/ul>\n