https://courses.digitable.life/en/tags/compatibility/ Recent content in compatibility on Digitable Courses Hugo -- gohugo.io en-US Mon, 03 Aug 2026 06:17:00 +0300 https://courses.digitable.life/en/post/spec/17-versioning/ Mon, 03 Aug 2026 06:17:00 +0300 https://courses.digitable.life/en/post/spec/17-versioning/ Why there is no “today” in the specification, how to store rule revisions alongside and what to prove to the client the charge for April according to the April rules.