DrFed changelog

Version 0.2.0

To be released.

Added immutable document histories for local object creation and accepted incoming Create activities. Database upgrades retain existing object and activity documents, including those of deleted objects. Back up and stop DrFed before running drfed-migrate. [#150, #164 by Hong Minhee]
Changed https://drfed.org/ to serve the DrFed documentation for the highest released version, prereleases included, along with a changelog page. Documentation for the development version is available at https://canary.drfed.org/. [#134, #137 by ChanHaeng Lee]

Fixed Resource.detail to return null without a field error when the resource has no corresponding detail record. [#150, #164 by Hong Minhee]

Added @drfed/models/resource-revision to append and read immutable ActivityStreams document histories. An append fails when its expected revision ID is stale, and object histories can end with a whiteout deletion marker. [#150, #164 by Hong Minhee]
Added validateDocument() in @drfed/models/document for parsed ActivityStreams documents. It returns structured errors and compatibility warnings with original nested field and list-entry paths, preserves custom properties as opaque JSON with warnings, and offers inspectable omission previews for empty arrays on supported properties. [#151, #166 by Jiwon Kwon]
Added prepareDocument() to compare documents with trusted server-supplied authority outcomes and creation values. It reports denied identities and server-owned-field conflicts and returns explicit generated-field changes with an independent preview. Permission decisions, identity allocation, and persistence remain the caller's responsibility. [#151, #166 by Jiwon Kwon]
Added offline validation coverage for all named activity types and selected Object, actor, collection, and Link types. Validation and preparation preserve input and perform no remote lookups, resource writes, or delivery. Unsupported types, properties, and context forms produce support findings; poll-specific rules remain separate work. The supported properties and representation limits are documented in packages/models/README.md. [#151, #166 by Jiwon Kwon]

Released on October 13, 2026. Initial release.