There have been no changes since the 2018 version.
Older Syllabus versions:
The Syllabus is now an official document related to the International Olympiad in Informatics (IOI). For each IOI, an up-to-date version of the Syllabus is produced by the ISC, as described in the IOI Regulations, Statue 3.13.
During the task selection process, the ISC reviews the Syllabus conformance of all proposals. (However, note that the Syllabus is not a binding set of rules. If sufficient rationale is present, the ISC may decide to accept a task that does not fully conform to the Syllabus.)
The following people have authored the original version of the syllabus:
Since then, the following people have maintained the syllabus and made significant contributions:
The content of the Syllabus has been influenced by past and present ISC members and several other active members of the IOI community.
You are welcome to send any feedback on the Syllabus to the current maintainer's e-mail address.