Release Notes of Structr Version 4

• Bug fixes in OpenAPI implementation: Improves standard compliance

• Fixes a bug where page links were lost in an deployment export/import roundtrip

• Adds contentType to export for page nodes
• Correctly delete MQTTClient first try (prevent setting an attribute on the node which is currently being deleted)
• Correctly handle a failed partial schema compilation
• Updated tests and configuration for compatibility with GitHub Actions

• Various bugfixes and security updates
• Volume license verification via HTTP (port 80)
• HTTP request metrics (pages) in Prometheus endpoint
• Docker images for arm64
• Smaller Docker image (< 1 GB down from 1.5 GB)
• On Debian systems, Structr is now installed as a systemd service
• Improved scripting performance
• Improved thumbnail management
• Improved control over error message popups in Backend UI
• Request data now available in onLogin and onLogout callback
• Syntax highlighting for python and R
• Use SVG icons more consistently
• New lifecycle method: afterSave
• New lifecycle method: onUpload
• New function: validate_certificates()
• New property: User.lastLoginDate

• Fixes bug in pdf generation
• Fixes version detection for non-numeric database version
• Performace enhancement for output rendering
• New rate limit setting for HTTP/2 frames (default limit: 100)

• Upgrade to GraalVM 22.1.0
• Some minor fixes

• Some icons harmonised and moved to SVG
• Enhancement of frontend low-code functions (input/select element management on Events dialog, lazy partial loading)
• Improved mail templates (bulk creation)
• Improved CSV import (support for empty headers)
• Updated dependencies
• Monaco editor as replacement for CodeMirror
• Fixes expected result count in single entity schema method calls
• Security enhancement (password complexity policy)
• OpenAPI enhancement
• Enhanced support for archive files (new unarchive() method, bug fixes)
• Updates GraalVM to version 22.0.0.2
• Many bugfixes and stability improvements
• Support for password-encrypted PDF files
• Create File node by moving existing file on disk to Structr file system
• Enhanced JWT/JWKS support
• Enhancements for polyglot scripting engine (doAs function)
• New HTML5 element types (Data, Dialog, Picture and Slot) and modified attributes of Audio and Video elements
• Enhanced partial replacement for table elements using insertAdjacentHTML
• Support for IETF BCP 47 language tag notation with dash instead of underscore as delimiter
• Fixed layout of graph editor function bar
• Upgrade to logback 1.2.8
• Upgrade to imageio 3.8.0 with Apache Batik to support transcoding of SVG images
• Many UI enhancements: Users can now create either simple pages or pages from a Widget template
• Support for JDBC queries without a result set (DELETE, INSERT, etc)
• Support for many image files types to be able to create thumbnails, e.g. WEBP format
• New lifecycle method onAcmeChallenge to allow for script-based creation of a dns record during the LetsEncrypt certificate retrieval process
• Fixed issue with ClosedChannelException in StructrWebSocket

• Adds exclusion for log4j to jmimemagic dependency.

New features:

• New admin UI
• Switch to Oracle GraalVM JDK 11
• Support for polyglot scripting based von GraalVM JVM
• New static type methods
• New application- and request-level context variable store
• Support for Neo4j 4.x including version autodetection
• New database driver with support for reactive Neo4j Bolt database driver
• New graphql() system function
• New (experimental) mongodb() and bson() system functions
• New (experimental) loadPartial() system function
• Jetty 10 with support for HTTP/2
• New group-based Resource Access Grants
• Support for JWT authentication with JWKS
• New servlet endpoints for metrics, health check and histogram data
• New map() script expression
• Support for deployment by up-/download of ZIP files and URLs

Security enhancements:

• Fixed ProxyServlet access modes
• 2FA whitelisting for IPv6 addresses with CIDR format support
• New “onOAuthLogin” lifecycle method
• SNI host check enforcement in HTTP service

Performance enhancements:

• Faster lookup for pages and files
• Improved cache() method
• Improved bulk operations

Enhancements:

• Improved scripting logging
• Multi-level autocompletion in script contexts
• Improved indexing
• Additional modes for ACME/let’s encrypt certification procedures
• Fixed serialization of nested JSON arrays
• Automatic reconnect for MQTT connections
• Many bug fixes, code clean-up and minor enhancements