Worked on updating the documentation for Couchbase Lite 4.0 in the couchbase/docs-couchbase-lite repository, focusing on aligning all references and content with the new release infrastructure. The approach involved removing outdated 3.x release notes, updating package references, and introducing new placeholder content for version 4.0. Used Asciidoc and YAML to revise technical documentation, ensuring that release notes, downloads, and upgrade guidance were consistent and forward-looking. Maintained version control best practices by consolidating all changes into a single, traceable commit, which supports reproducibility and auditability. No bugs were addressed during this period, with efforts concentrated on documentation improvements.