I think SID should be supported for more File Types that are often used for software localization.
For example, XLIFF 1.2 File Type has been introduced at the release of 11.1.1:
https://community.sdl.com/product-groups/translation_management/sdl_worldserver/b/weblog7/posts/xliff-1-2-file-type-support-in-worldserver-11-1-1
I tried the new File Type to find out it does not support SID. I think SID is one of the biggest features that differentiate WorldServer from other products (Trados, TMS, etc.), so this is disappointing.
At present, SID can be utilized with the following 4 File Types (https://gateway.sdl.com/articles/FAQ/000004321):
- Java Resources File Type
- Custom XML (Embedded Content Processor) File Type
- Custom XML (Legacy Embedded Content) File Type
- JSON File Type
Also, for the record, Memsource Cloud supports "Segment Key" (or "Segment ID") with the following file formats (https://help.memsource.com/hc/en-us/articles/360017460212-TM-Match-Context-and-Optimization):
ANDROID_STRING, CHROME_JSON, DESKTOP_ENTRY, DTD, JAVA PROPERTIES, JOOMLA_INI, JSON, MAC_STRINGS, MOZILLA_PROPERTIES, PHP, PLIST, RESJSON, RESX, TS, XML_PROPERTIES, YAML, CSV, XML, Multilingual XML, Multilingual MS Excel