Apple Type Services for Unicode Imaging
|Operating system||Classic Mac OS, macOS|
It replaced the WorldScript engine for legacy encodings.
The framework was officially deprecated with Xcode 4.6, which was released in December 2012: "Source code using ATS APIs will generate warnings while being compiled. For 10.8, there will be no loss of functionality but there could be areas where performance will suffer. Programmers are instructed to replace all their ATS code (including ATSUI) with CoreText as ATS functionality will be completely removed in future releases of OS X."
- "Guides and Sample Code". developer.apple.com. Retrieved 2018-03-20.
- Truta, Filip. "Apple Confirms Deprecation of ATS.framework in Xcode 4.6 Developer Preview 1". softpedia. Retrieved 2018-03-20.