S-comma
S-comma was not initially supported in early Unicode versions, nor in the predecessors like ISO/IEC 8859-2 and Windows-1250. Instead, Ş (S-cedilla), a character available since Unicode  1.1.0 (1993), was used for digital texts written in Romanian. In some contexts, like with low-resolution screens and printouts, the visual distinction between ș and ş is minimal. In 1999, at the request of the Romanian Standardization Association, S-comma was introduced in Unicode 3.0. Nevertheless, encoding for the S-comma was not supported in retail versions of Microsoft Windows XP, but a later European Union Expansion Font Update provided the feature. While digital accessibility to S-comma has since improved, both characters continue to be used interchangeably in various contexts like publishing.