See what has changed Release Notes

• 21. Aug 2023

  5.0.0

  Changes between 5.0.0 and 5.0-rc1:

  - New: Code completion for internal keywords
  - New: Scripting function to disable UUID validation in batched imports
  - New: Environment variable for setting custom Java agent in docker container.
  - New: Request parameter to control serialization of null values in JSON output
  - New: hash() function which supports all of the hash functions (MessageDigest) provided by the underlying JVM
  - New: Configuration setting to allow setting the Jetty URI compliance mode
  - New: Shortcuts to most frequently used keys in scripting for better performance
  - New: Pre-fetching of relationship end nodes for better performance
  - New: Allow certain scheduled tasks to run in parallel
  - New: Support for more than two URL segments (important for custom page paths)
  - New: UI setting to view groups strictly hierarchically (meaning nested groups do not appear on top level)
  - Enhanced support for Java methods in code and schema area
  - Support for JavaScript syntax highlighting in ${{ }} in HTML elements
  - Improved drag & drop behaviour and highlighting in Structr Backend UI
  - Fixed bug on reload of schema for changes to relationship type and cardinality
  - Finalized update of frontend Event-Action mapping
  - Finalized rewrite of Structr Backend UI Javascript code
  - Removed "twitterName" property from User and Person class
  - Modified Let's Encrypt ACME dnsChallenge method to send the parameters 'domain' and 'record' instead of 'hostname' to 'onAcmeChallenge' method.
  - Allow reloading the page with Cmd/Ctrl+Shift+R even if a global or static method is open
  

• 20. Jun 2023

  5.0-rc1

  Changes between 5.0-rc1 and 4.2.3:

  - Support for Neo4j 5.5
  - Upgraded Java version to 17
  - Upgraded GraalVM runtime to 22.3.1
  - Upgraded maven-compiler-plugin to 3.11.0
  - Support for 36-char UUIDv4 ids with dashes
  - New settings to control how UUIDs are created (with or without dashes) and which UUIDs formats are allowed (with or without dashes or both)
  - New change handlers for settings
  - Big refactoring of UI code with massive memory management overhaul and new SVG icons
  - Improved and extended Event Action Mapping for building interactive frontends
  - Enhanced OpenAPI support
  - New Tailwind CSS based widgets and new default widget server
  - New HTML element <structr:shared-template> to allow creation of shared components from Widgets
  - Merge of Structr Core/Rest/UI into Structr Base
  - Enhanced OAuth support with support for Azure auth client and scribejava
  - Removed _graph view
  - Allow limiting of properties in custom-defined views
  - New preview option in right-hand side slide-out
  - New startsWith and endsWith predicates for Advanced Find
  - Adds python library into default Structr Docker image and removes dedicated Docker image with python support
  - Removed chosen library and updated all remaining chosen select elements to select2
  - Enables temporal proposal in JS scripting
  - Expected minor version of GraalVM aligned with dependency version
  - New chrome debugging capabilities and settings.
  - Adds step to install GraalVM in CodeQL workflow
  - Removed db/ folder creation and references
  - Enhanced and unified handling of drag'n'drop in tree and contents area
  - Enhanced cluster mode
  - New right-click context menu in Pages preview
  - New builtin function "create_or_update" to create an object with the given properties or update an existing object if it could be identified by a unique property
  - Support for code transpiling for import scripts
  - Support for Apache Pulsar
  - Uniqueness validation synchronization for parallel transactions for external UUIDs
  - Support for multiple values per key for HTTP headers
  - Enhancement: Adds the option to remove properties of a superclass from views of the same name.
  - Implements basic virtual filesystem access for scripting.
  - Function POSTMultiPart that allows multipart HTTP requests for file uploads.
  - Java Parser module removed
  - New graph-based persistence model for storing data and relationships of and between events, actions, parameters, success and failure behaviour as well as future features like notifications, visualization.
  - Feature: Allow leaving start or end of REST range query empty (for greater than, lower than searches)
  - Improvement: allows <template> elements to be inserted in to a page, enables template-based notifications in frontend.js.
  - New structr_env() function to extract Structr runtime environment information as an alternative to querying the REST _env resource.
  - Upgrade Jetty to version 11.0.10
  - New UI functionality for defining CORS settings for individual request URIs
  - New thread management dashboard in admin UI
  - Minification feature for js and css files removed
  - Upgrades and fixes slf4j and logback versions
  - New workflow for testing and building Structr with Github actions
  - Made HTTP license server more robust, support GET, POST and HEAD, and respond properly to a simple GET
  - CMIS dependencies removed
  - Lots of further enhancements and bug fixes
  

• 28. Feb 2023

  4.2.3

  Changes between 4.2.3 and 4.2.2:

  - Bug fixes in OpenAPI implementation: Improves standard compliance
  

• 21. Feb 2023

  4.2.2

  Changes between 4.2.2 and 4.2.1:

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

• 09. Jan 2023

  4.2.1

  Changes between 4.2.1 and 4.2.0:

  - 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
  

• 23. Aug 2022

  4.2.0

  Changes between 4.2.0 and 4.1.2:

  - 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
  

• 04. May 2022

  4.1.2

  Changes between 4.1.2 and 4.1.1:

  - 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)
  
  

• 30. Apr 2022

  4.1.1

  Changes between 4.1.1 and 4.1.0:

  - Upgrade to GraalVM 22.1.0
  - Some minor fixes
  

• 07. Mar 2022

  4.1.0

  Changes between 4.1.0 and 4.0.1:

  - 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
  

• 17. Jan 2022

  4.0.1

  Changes between 4.0.1 and 4.0.0:

  - Adds exclusion for log4j to jmimemagic dependency.
  

• 29. Nov 2021

  4.0.0

  Changes between 4.0.0 and 3.6.5:

  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
  

• 26. May 2021

  3.6.5

  Changes between 3.6.5 and 3.6.4:

  - Minor enhancements and fixes
  

• 24. Apr 2021

  3.6.4

  Changes between 3.6.4 and 3.6.3:

  - Security: Configure jetty not to send Server response header
  - Enhancement: Improve Admin Console output
  - Enhancement: Reduce log level for LdapNetworkConnection
  - Enhancement: Remove LDAP users that are not associated with a group
  - Bugfix: Restore cursor position in schema method editor after save/revert
  - Bugfix: Prevent serialization of objects deleted in concurrent transaction
  - Bugfix: Close connection and result set in jdbc() function
  

• 08. Jan 2021

  3.6.3

  Changes between 3.6.3 and 3.6.2:

  - New configuration setting to delay oauth success redirect after login
  

• 11. Dec 2020

  3.6.2

  Changes between 3.6.2 and 3.6.1:

  - Reduced logging output
  - Bugfix: Fix NotInTransaction exceptions for RuntimeEventLog writes in JsonRestServlet
  - Bugfix: Avoid NPE
  

• 23. Nov 2020

  3.6.1

  Changes between 3.6.1 and 3.6.0:

  - Bugfix: remove transactions around REST calls to avoid deadlocks in structr-ui tests
  

• 09. Nov 2020

  3.6.0

  Changes between 3.6.0 and 3.5.1:

  - New: OpenAPI support based on schema information
  - New: Health Check endpoint
  - New: JWT support
  - New: Maintenance mode
  - New: Group/type based schema permission resolution
  - New: CSS parser integration in preparation of dynamic CSS endpoint
  - New experimental library for server-side support of frontend apps (frontend.js)
  - New function 'one()' for better handling of singular and plural strings
  - New 'doAs()' function
  - New function 'hmac()' that creates keyed-hash message authentication codes for the given String value and secret
  - New 'sleep()' and 'random_uuid()' built-in functions
  - New 'system_info()' built-in function
  - New 'create_zip()' method to create ZIP files. Supports password protection and AES encryption.
  - New 'ip' keyword
  - New function 'import_css()' to import CSS rules into a graph structure
  - New feature: Allow renaming files in mounted filesystem
  - New feature: "Slow query" log with configurable threshold
  - New type selector in admin UI Data section
  - New mail_set_manual_config() and mail_reset_manual_config() functions
  - New 'Export and Download' for direct download of deployment export ZIP archive
  - Improved thumbnail generation (complete reimplementation)
  - Improved deployment export format
  - Improvements in config UI
  - Improved search for $.equals and $.contains
  - Improved code editor search
  - Improved MQTTClient
  - Improved deployment download
  - Improved Letsencrypt integration for HTTPS certificates
  - Improved Flow editor
  - Improved logging configuration via logback-include.xml
  - Improved support for afterCreate lifecycle method
  - Improved advanced mail module
  - Improved relationship dialog in Schema editor
  - Backend/driver improvements for faster REST queries
  - Neo4j driver version 1.7.5
  - Bolt Driver improvement: use new Cypher query parameter syntax `$param` instead of `{param}`
  - Bolt Driver improvement: variable fetch size based on available memory
  - Bolt Driver improvement: incremental lazy loading of large result sets
  - Experimental driver for memgraph db 1.1.0
  - Update JVM in docker image to JDK 11
  - Bulk edit for type-based schema grants
  - Many bugfixes and enhancements
  

• 03. Jun 2020

  3.5.1

  Changes between 3.5.1 and 3.5.0:

  - Bugfix: implements workaround for bug in URI class with Windows file paths in getFileOnDisk().
  

• 20. May 2020

  3.5.0

  Changes between 3.5.0 and 3.4.3:

  - Improved support for other database driver implementations
  - In-memory database driver
  - New PATCH support for RESTful API
  - Improved Data area (exact type listing, delete all function)
  - Improvements to Flow editor and engine
  - New geospatial processing functions
  - Support for collections for starts_with() function
  - Upgrade to Rhino version to 1.7.11
  - New version of persistence library for Structr frontend apps
  - New LoginServlet and LogoutServlet to allow plain HTTP login / logout using forms
  - Improved auto-completion in content elements and StructrScript
  - LetsEncrypt integration
  - New built-in functions get_cookie(), set_cookie(), date_add(), escape_xml(), remoteCypher()
  - Enhanced data deployment (reduced memory footprint)
  - Improved handling of incremental result fetching under low-memory conditions
  - Lots of improvements to schema editor (multi-save for properties and methods)
  - New setup wizard
  - Upgrade to JDK 11 (LTS)
  - Updated many dependencies
  - Enhanced server-side scriptig support for Python, R, Ruby, PHP
  - Support for cron jobs in their own thread with support for exclusive or parallel execution (configurable)
  - Sortable custom main menu
  - Support for binary data in GET() and byte arrays in append_content()
  - Improved Code area: type groups, working sets, recently used types, better icons
  - Improved UI: Support for three-column layouts with two resizers; improved resizing UX
  - Improved deployment 1: Better UX; new default "tree" export format; prevent parallel import/export
  - Improved deployement 2: More compact notation for visibility; version compatibility check
  - POM file URLs changed from http to https
  - Improved security for XML parser
  - New short notation $. for server-side JavaScript functions
  - New server-side JavaScript shortcuts for all internal keywords
  - Removed deprecated 'element' keyword (replaced by 'this' years ago)
  - Removed Structr-specific slice() function from server-side JavaScript function mapping
  - Improved logging
  - Support for removing header parameters that were added via add_header()
  - Improved security by preventing read-out of superuser password via config() function (was admin only)
  

• 24. Feb 2020

  3.4.3

  Changes between 3.4.3 and 3.4.2:

  - Adds warning for soft-limited result and page counts in CRUD pagers.
  - Set test execution fork count to 1 for all modules.
  - Updates bolt driver to 1.7.5, Neo4j embedded to 3.4.17.
  - Many bug and test fixes
  - Bugfix: Fixes regex for VersionHelper - turns capturing group to non-capturing group
  - Implements automatic txData cache cleaning based on WeakHashMap and weak keys.
  - Many changes for better async and result streaming support, implements soft limit on unlimited results.
  - Bugfix: Fetch release/snapshot version update info from frontend as to not block the loading of the UI
  - Enhancement: adapt cache sizes when running low on memory
  - Fixes debian stop script, that sometimes ran into an endless loop in case the Structr process was already stopped.
  - Enhancement: fetch Cypher results asynchronously and discard remaining records.
  

• 28. Jan 2020

  3.4.2

  Changes between 3.4.2 and 3.4.1:

  - Bugfix: fixes memory leak in transaction handling
  

• 04. Dec 2019

  3.4.1

  Changes between 3.4.1 and 3.3.3:

  - Several bug fixes and enhancements in the LDAP module
  - Slide-outs on right-hand side in Pages Area (Shared Components etc.) are now resizable as well
  - Drastically reduced number of Neo4j indexes
  - Index-aware Cypher query generation
  - Asynchronous rendering of template content
  - New system to save Flow layouts
  - Suggested children/widgets
  - New assert() built-in function
  - Some bug fixes for Flow rendering
  - Bugfix: Fixes display issue for self-relationships in Code area and prepares for relationship edit dialog
  - Option for subtype filtering in data area
  - Enhanced support for HTTP PATCH verb and PATCH() function
  - Updated escape_html() and unescape_html() to use StringEscapeUtils
  - Tests: Adds test to make sure that the order of UUIDs returned by a REST POST matches the order of posted objects.
  - Enhancements and bug fixes for advanced find() and find_privileged() functions
  - New job_list() built-in function to list all queued and running schedule jobs
  - New job_info() function
  - New onFinish callback method to file imports and scheduled functions
  - New stop_words() built-in function to access stop words dictionary
  - empty() function now interprets {} as empty=true
  - Scripting expressions containing '\\' are interpreted correctly now
  - Console JavaScript version upgraded to ES6 to match other scripting contexts
  - Enhancements in Kafka client
  - Performance improvements
  - Enhancements in the schema UI
  - Lots of new tests added
  - Improved rendering of partials
  - Usage of concatenated strings in to_excel() function allowed now
  - Align Apache POI version to new Apache Tika version to prevent NoClassDefFoundError
  - GitHub security advisory: Apache Tika upgraded to version >= 1.22
  - Fulltext indexing during deployment import is now configurable via setting
  - Improved CSV/XML import
  - UI enhancement: Localizations, mail-templates and virtual types are resizable now
  - New mail_select_config() function to enable users to configure multiple mail accounts/servers
  - Blacklists for WebSocket messages so that less traffic is created for regular actions
  . Enhancements and bug fixes in admin UI
  - Enhancements in logging functionality
  - Enhancements and bug fixes for deployment import and export
  - Many other bug fixes and enhancements
  

• 17. Jul 2019

  3.3.3

  Changes between 3.3.3 and 3.3.2:

  - Bugfix: Removes property from view sortOrders when the property is deleted
  - Enhancement: Adds object id and type to title attribute of search results for related nodes search results in CRUD
  - Feature: Deactivates code that prevents deletion of self-relationships.
  - Bugfix: Better support for dynamic files in backend UI
  - Feature: Allows builtin create_relationship() function to directly set attributes on the newly created relationship
  - Bugfix: Allows searching in bigger files in CodeMirror
  - Enhancement: Strip whitespace from method code
  - Bugfix: Fixes directly addressed partials
  - Feature: Adds two new function to de- and encode RFC 822 "text" token into/from mail-safe form as per RFC 2047
  - Enhancement: File import ignores and logs thumbnail images
  - Bugfix: Fixes preview rendering for templates with a repeater
  - Enhancement: Improved logging, adds setting to control stacktrace logging in scripting
  - Bugfix: Include related type in generated source code of NotionProperty
  - Bugfix: Various flow issues
  - Bugfix: Changes FlowTypeQuery to use proper input converters
  - Bugfix: Changes FunctionProperty to be able to use appropriate database converters.
  - Enhancement: Schema methods can now be called via scripting and REST
  - Enhancement: Removes classes in favor of POM dependency
  - Minor: Adds error code to schema reloading code
  - Bugfix: Fix notion collection properties in data deployment
  - Bugfix: CSS syntax highlighting in CodeMirror
  - Enhancement: Updates CodeMirror to 5.48.0
  - Bugfix: TypeQuery sort operations
  - Bugfix: Fixes login dialog tabbing problem
  

• 26. Jun 2019

  3.3.2

  Changes between 3.3.2 and 3.3.1:

  - Fixes unstable GraphQL test.
  - Minor: Removes outdated configuration for StructrClassLoader class
  - Feature: Adds new configuration setting which enables logging additional request information for javascript exceptions
  

• 25. Jun 2019

  3.3.1

  Changes between 3.3.1 and 3.3.0:

  - Bugfix: Prevents notion properties from breaking the data deployment as they "look" like relationships from a property-info POV
  - UI: Don't refresh server log if the textarea has focus
  - Feature: Allow customization of server log output
  - Feature: Display warning message(s) for missing source files in tree-based schema export
  - Bugfix: Correctly set contentType for newly created elements
  - Bugfix: Do not force trimming of localized values as it prevents intentional blank characters
  - Adds new flows module, removes flows from api-builder module.
  - Fix: Removes call to 'deep-open' the root dir in Contents area (lead to improper display of working dir in case of root dir).
  - Changes path to the lib folder in the windows start.cmd script, so structr can be started from the root folder with bin/start.
  - Implements save & load for mixed CSV import configuration.
  - UI: Visually indicate finished jobs in auto-updating messageBuilders (change from blue to green)
  - Bugfix: Updates pattern to extract module information from classpath (windows delimiter is ; instead of :)
  - Merge branch 'master' of github.com:/structr/structr
  - Fixes advanced CSV import for types w/o unique properties.
  - Enhancement: Update Apache Commons Mail dependency from 1.4 to 1.5
  - Enhancement: Adds support for RFC 4180 mode for CSV import.
  - Minor: Changes detection whether structr is already running
  - Adds Structr-Return-Details-For-Created-Objects HTTP header to return more details on created nodes in REST POST requests.
  - Feature: Adds "delete all" button to crud
  - Enhancement: Adds 'driver' parameter to jdbc() function.
  - Minor: Make "Strict Quotes" option disabled by default in CSV importer
  - Bugfix: Clear schema type cache for import dialog so it does not show duplicates
  - Feature: Adds "Only show custom types" checkbox to CSV import dialog
  

• 07. Jun 2019

  3.3.0

  Changes between 3.3.0 and 3.2.2:

  - New find() functionality: Boolean filters, range queries, paging and sorting
  - Content-Length header for dynamic files and file downloads in HttpServlet
  - Improvements in flow engine and editor
  - Lots of UI improvements: Storing UI parameters more reliable, improved pager and Dashboard area
  - Upgrade to latest jQuery version (3.3.1)
  - Many UI bug fixes
  - Enhancements in data deployment
  - Deployment export supports null, false and empty values now
  - '$' shortcut for `Structr` in scripting and console
  - copy_permissions() function now allow overwriting of existing target node Security relationships
  - Performance: Allow grouping grant/revoke commands for a node to reduce the number of database calls
  - Upgrade Jetty to 9.4.18
  - Support cloning of elements in the same page to a different parent
    even if the selected node has a nextSibling
  - New security features: Configurable max. # of sessions, invalidation and clearing
  - Support for 'HttpOnly' cookie (configurable)
  - Support for custom LDAP property to uniquely identify an object instead of dn
  - New has_error() builtin function
  - Enhanced transaction consistency in EntityWrapper
  - Use platform defaults for Java heap parameters -Xms and -Xmx
  - Better handling of non-Structr nodes
  - Debian package can now run with openjdk-8-jdk-headless
  - Improved cache invalidation for orphaned node instances
  - Improvements for e-mail functionality: Properly decode filename of e-mail attachments,
    PDF type detection for attachments, password storage as encrypted string
  - Performance improvements
  - New support for volume and per-user licenses
  - New support for encrypted string functionality
  - Experimental feature "Analyze schema" removed
  - First implementation of app store with categories and tiles (still hidden in this release)
  - Editions removed in favor of modules
  - Lots of comments in settings for auto-generating the support article for structr.conf
  - Docker "latest" tag is now attached to latest release only.
  

• 23. May 2019

  3.2.2

  Changes between 3.2.2 and 3.2.1:

  - Fixes GraphQL registration issue for inherited properties on nested collections
  - Upgrade of graphql-java from version 7.0 to 12.0
  

• 09. Apr 2019

  3.2.1

  Changes between 3.2.1 and 3.2.0:

  - Minor enhancements and bug fixes
  - Feature: Make preview for dynamic files optional
  - No more stacktrace logging in HTML output
  - Custom headers from config file in all servlet responses (with tests)
  - New settings that allows to log the jetty ssl configuration on
    startup and to enable/disable SSL protocols and cipher suites
  - Bugfix: Clear localization cache when all caches are flushed
  

• 27. Mar 2019

  3.2.0

  Changes between 3.2.0 and 3.1.2:

  - Many bugfixes and improvements
  - New server-side IMAP client and support for e-mail attachments
    and multipart e-mails
  - Improved and extendend LDAP / Active Directory synchronization
  - Support for multiple widget servers 
  - Update to Font Awesome 4.7
  - Performance improvements in Structr backend UI
  - Use TestNG instead of JUnit to allow re-use of test classes and setups
  - Optional export of schema methods and functions in
    individual files for better revision control support
  - Optional inclusion of UUIDs in deployment export
  - Improved message queue client implementations (Apache Kafka)
  - Support for array properties 
  - Support for X-FORWARDED-FOR HTTP header
  - Search function in configuration editor
  - New built-in functions: has_cache_value(), get_cache_value(), delete_cache_value(),
    get_relationship_types, set_response_code()
  - Improved support for arbitrary objects (JSON etc.) in repeater elements
  - Fixes deployment issues with Pages and DOMNodes and the hidden flag
  - Store Structr Ui configuration data in the database instead of the file system
  - Cypher query result is now identical to the actual Cypher result structure
  - Move some vendor-dependent database queries to the driver level.
  - Updated several dependencies to use the most recent versions
  

• 3.1.2

  Changes between 3.1.2 and 3.1.1:

  - Fixes a bug with user self-registration
  

• 3.1.1

  Changes between 3.1.1 and 3.1.0:

  - Minor bug fixing
  

• 3.1.0

  Changes between 3.1.0 and 3.0.3:

  - Massive performance enhancement: True lazy result streaming from database
  - Support lazy evaluation for custom Cypher calls
  - Create and sync LDAP groups and users
  - Support for HTTP PATCH
  - OR conjunction in toplevel GraphQL queries
  - Improved Code area
  - Improved Contents area
  - Improved Flow editor
  - Better handling of array data types UI
  - Enhanced config servlet, allows (most) services to start/stop/restart at runtime
  - Flush caches after cypher write queries
  - Improved security of remote Neo4j connections
  - Changelog output to filesystem
  - Improved Windows support
  - Updated Jetty to latest version (9.4.13.v20181111)
  - Support for DeepL as a translation provider
  - Added debug() function for debug logging
  

• 3.0.3

  Changes between 3.0.3 and 3.0.2:

  - Fixes bug related to HTTP PATCH
  - Adds support for PATCH to resource access tab
  

• 3.0.2

  Changes between 3.0.2 and 3.0.1:

  - Performance enhancement: Optional parallel JSON serialization
  - New feature: Parallel flow processing and new elements: FlowFilter, FlowNotEmpty, FlowLog, FlowFirst
  - New: Flows as data source for DOM element repeaters
  - Upgrade to Neo4j Bolt 3.4.9 and Neo4j Java Driver 1.6.3
  - Audit changelog is now written to configurable filesystem path
  - New: `dontCache` flag also for files, evaluate `cacheForSeconds` for files
  - Prevent non-indexable property values from being indexed
  - New OAuth2 provider `Auth0` and improved StructrOAuthClient base implementation
  - New HTTP verb: PATCH (with batched transactions of size 1000)
  - Many UI improvements including new `custom` view
  - Fixed bug related to indexing of function property values
  - Other bug fixes
  

• 3.0.1

  Changes between 3.0.1 and 3.0.0:

  - New: Windows MSI installer
  - Minor enhancements and bug fixes
  

• 3.0.0

  Changes between 3.0.0 and 3.0-rc1:

  - Minor enhancements and bug fixes
  

• 3.0-rc1

  Changes between 3.0-rc1 and 2.3.8:

  - New: Fully dynamic schema
  - New: GraphQL API
  - New: Flow Engine and Editor 
  - New: Support for multi-tenancy
  - New: PDF module for server-side transformation of any HTML page into PDF
  - New: Excel export module
  - New: 2-Factor-Authentication with QR code generation
  - New: Password rules and failed login counter
  - New: Code area for simple code editing
  - Upgrade to Neo4j 3.4.7 and Bolt Driver 1.5
  - UI refresh
  - Improved CSV import
  - Improved Windows support
  - Integrated ECMAScript engine updated to ES6 level
  - Simple automatic schema layouting
  - Messaging module support for Apache Kafka
  - Support for custom HTML tags and attributes
  - Type-based batching for XML import