Changelog

Version 0.9 (2026-05-07)

Pilot release

• UPDATED ArcadeDB to 26.4.2
• UPDATED Benthos to 4.72.0
• UPDATED Lowdefy to 4.7.3
• ADDED prop parameter to schema endpoint to select single property
• ADDED static frontend for local testing (index.html)
• ADDED CORS header to backend server
• ADDED facets to schema
• ADDED facets to frontends
• ADDED redis query language
• ADDED allow URL encoded form as /ingest request body
• ADDED /database endpoint for metadata queries
• ADDED number of records to health report
• ADDED ingest and interconnect status to health report
• ADDED sample proxy configuration (compose.proxy.yaml)
• ADDED environment variable DL_SAFE to disable /database endpoint
• CHANGED record identifier hash from xxhash64 to sha256 and added ni: prefix
• CHANGED test record id from dataasee to ni:dataasee
• CHANGED rename externalItems to relatedItems
• CHANGED rename metadataFormat to rawFormat
• CHANGED make backup endpoint async
• CHANGED schema endpoint (properties provide enumerations and facets)
• CHANGED property naming from name to title
• CHANGED edge property names from relations/.* to @.*
• CHANGED name and data contents for identifiers and synonyms items
• CHANGED cypher query language name to opencypher
• CHANGED maximum incoming API payload to 12KiB
• CHANGED /schema endpoint response
• CHANGED /metadata endpoint response for edge properties and remove query mode
• CHANGED make paging one-based instead of zero-based
• CHANGED keywords property to list of string
• CHANGED paging for source listings to cursor-based
• CHANGED rawChecksum hash from md5 to sha256 and added sha256: prefix
• IMPROVED raw format by consistent labels
• IMPROVED health endpoint (simpler response without CHECK DATABASE)
• IMPROVED interconnect script
• IMPROVED full-text search
• REMOVED insert endpoint (replaced by ingest via GET)
• REMOVED enums endpoint (enumerations and facets via schema endpoint)
• REMOVED sources endpoint (sources via schema endpoint)
• REMOVED synonyms, relations, relatedItems from enums
• REMOVED gremlin query language
• REMOVED backup on shutdown
• REMOVED /stats endpoint (is now custom query in frontend)
• REMOVED numberViews property
• REMOVED /backup endpoint (is not needed anymore due to static data)
• FIXED many bugs and security concerns

Version 0.5 (2025-11-13)

Advanced development release

• UPDATED ArcadeDB to 25.10.1
• UPDATED Benthos to 4.60.0
• UPDATED Lowdefy to 4.5.2
• ADDED doi filter to metadata endpoint
• ADDED export-format option to metadata endpoint
• ADDED datacite export format
• ADDED bibjson export format
• ADDED GraphQL query example
• ADDED DOI search to frontend
• ADDED edge (relation) type isDescribedBy
• ADDED test data to metadata endpoint (id=dataasee)
• ADDED frontend busy check
• ADDED selective harvesting option for OAI-PMH
• ADDED source rights field for ingest
• CHANGED rename attributes endpoint to enums
• CHANGED ingest endpoint behavior for empty bodies
• CHANGED ingest endpoint required fields
• CHANGED endpoint types
• CHANGED metadata result order to no sorting by default
• CHANGED source property to link
• CHANGED default ports
• IMPROVED API routing
• IMPROVED normalizer script
• IMPROVED interconnect script and its performance
• IMPROVED enumerations in schema
• IMPROVED health endpoint
• IMPROVED progress logging
• IMPROVED format parsers
• IMPROVED API developer experience
• IMPROVED frontend user experience
• IMPROVED deployment documentation
• IMPROVED sources endpoint
• REMOVED Prometheus endpoints (Docker logs suffice)
• REMOVED message property from schema (included into description)
• FIXED ingest via S3
• FIXED authentication challenge (found via wget2)
• FIXED duplicate index entries and index compaction
• FIXED many bugs and security concerns

Version 0.3 (2025-05-06)

Enhanced development release

• UPDATED ArcadeDB to 25.4.1
• UPDATED Benthos to 4.50.0
• UPDATED Lowdefy to 4.4.0
• ADDED ingest protocols: GET, dataasee
• ADDED ingest format: LIDO
• ADDED sources endpoint
• ADDED source filter
• ADDED metadata format filter
• ADDED conforming paging links in results responses
• ADDED record lists in frontend
• ADDED record DOI to results
• CHANGED schema: use OpenWEMI
• CHANGED metadata endpoint paging now via page instead of skip
• CHANGED database schema
• CHANGED secrets management
• CHANGED ingest busy test
• IMPROVED metadata quality test
• IMPROVED interconnect script
• IMPROVED format parsers
• IMPROVED database queries
• IMPROVED database preloading
• IMPROVED database response processing
• IMPROVED compose deployment configuration
• REMOVED support for podman-compose (use docker compose via podman)
• FIXED many bugs and security concerns

Version 0.2 (2024-09-10)

First public development release

• UPDATED ArcadeDB to 24.6.1
• UPDATED Benthos to 4.36.0
• UPDATED Lowdefy to 4.3.0
• ADDED ingest protocol: S3
• ADDED ingest formats: DataCite, MARC
• ADDED compatibility: kubernetes (via kompose)
• ADDED API testing using JSON-Schema
• IMPROVED endpoint processing
• IMPROVED endpoint error handling
• IMPROVED API semantics
• IMPROVED interconnect script
• IMPROVED frontend robustness
• IMPROVED overall documentation
• CHANGED native schema
• CHANGED API interface
• FIXED many bugs and security concerns

Version 0.1 (2024-01-18)

Initial internal development release

• ADDED ingest protocols: OAI-PMH
• ADDED ingest formats: MODS, DC
• ADDED query languages: SQL, Gremlin, Cypher, MQL, GraphQL
• ADDED compatibility: docker-compose, podman-compose