The documentation site always describes the latest DocumentDB release, with in-page annotations ("added in", "default changed in") covering recent changes. Frozen snapshots are hosted for recent versions; older versions remain browsable as git tags.
Current — v0.114-0 latest release
Continuously updated documentation for the latest DocumentDB release.
v0.114-0 archived snapshot
Frozen documentation as of the v0.114-0 release. Not updated.
Older versions
Documentation for versions that are no longer hosted here is preserved as git tags on the docs repository — browse the Markdown exactly as it was at that release.