Quality releaseReleased March 27, 2026

Structr 6.3.0

Structr 6.3.0 is a quality-focused release that builds on the foundation of 6.2.0 with significant UI refinements, improved configuration tooling, security hardening, and a broad set of bugfixes. Highlights include a revamped dialog and configuration UI, a new predicate.any function, deployment export boundaries for folder subtrees, improved mail function error handling, and continued documentation improvements.

New Features

predicate.any Function

New predicate function predicate.any for flexible matching logic in queries, complementing existing predicate functions

Deployment Export Folder Boundaries

Folder subtrees can now be excluded from deployment exports, giving developers fine-grained control over what gets exported

Cron Expression Descriptions

The configuration UI now displays human-readable descriptions of cron expressions, making scheduled task configuration more transparent

Experimental Annotations

New experimental annotation support with documentation output, allowing features to be marked and tracked as experimental

TRACE Verb Blocking

HTTP TRACE verb is now blocked at container level for improved security posture

Enhancements

Configuration UI

Servlets and services sorted by name for easier navigation
Long descriptions now displayed correctly
Nicer input popup for adding new configuration keys
Multiple visual inconsistencies fixed
Information about list item separators and service restart hints added to relevant settings
HTTP rate limit increased to 1000 to avoid stale browser connections

User Interface

Custom dialog styles for file-editor, run-method, schema, and CRUD dialogs
Hover activated on tabs in widget-editor
Responsive general tab that adapts to container size
Search input fixed in CRUD dialog popups
Dropdown placement fixed for show conditions in one-column mode
Missing classes added to show/hide condition example dropdown
Bold font removed from properties table keys for cleaner appearance
Dialog height scoped to widget dialog only

Schema and Data

“Rebuild Index” dropdowns now split node/relationship types into custom and built-in sections
In-dialog warning when composite uniqueness constraint is violated during object creation
Uniqueness flags disabled for function properties (where they don’t apply)
Hover titles added to direct attribute header columns

Flow Editor

Prevented NPE when flows don’t return values
Updated JavaScript calls to work properly when Structr doesn’t run in the default path
Updated keybindings for better macOS compatibility
Removed outdated flow editor HTML files

Timer Function

Pause and clear actions added to timer
Start made idempotent
Switched to System.nanoTime() for higher precision

Mail Functions

Developers can now catch exceptions from sendPlaintextMail and sendHtmlMail instead of exceptions being silently swallowed
Updated documentation for mailSend

Other

base64decode now throws proper exceptions when the scripting engine supports exception handling
Prevent duplicate global search results when pressing Enter after typing
Page.path updated to a function property ('/' + page.name), replacing the old static property while preserving linkable functionality
Removed outdated “Disable automatic page preview reload” localStorage flag
Prevented automatic refresh of preview when center pane is refreshed (only on actual page element edits)
Function properties no longer cache values when caching is disabled
Prevented JS error when fetching notion property by rerouting to actual attribute
Removed impossible/unused show- and hideConditions from pages.json in deployment export
Removed counter code for already-removed counter functions
Removed deprecated REST console

Bugfixes

Core

Fixed function properties caching their values even when caching was disabled
Fixed indexing of function properties with type hint “Date” where null could be returned
Prevented HTML content in global search results from breaking the UI
Added database feature detection for TypePredicateExpressions to enable global search in Neo4j versions before 5.9

OAuth

Fixed creation of absolute URLs for OAuth redirect flow
Removed duplicate application root path from OAuth redirect call
Changed default user endpoint for Azure OAuth provider back to the OIDC endpoint with better logging for missing credential keys

Files and Pages

Added missing name HTML property and included it in the _html view
Fixed typo in view definition

Deployment

Show long description correctly in config UI

Documentation

Updated documentation for predicate.sort and predicate.any
Added more detail to the “pause” action for timer() function
Added documentation for the default upload folder setting
Updated widget help text in the widget popup for improved readability
Continued improvements across multiple documentation articles

Infrastructure

Fixed release creation pipeline commands for GitLab package registry
UI tests updated and screenshots refreshed
Removed unused settings and fixed spelling in configuration

Upgrade Notes

Recommended for all Structr 6.2.x users
The REST console has been removed from the UI
Page.path is now a function property - review any code that writes to Page.path directly
The HTTP rate limit default has been increased to 1000
base64decode now throws exceptions instead of failing silently - update error handling if needed
The Azure OAuth default user endpoint has changed back to the OIDC endpoint - verify your Azure OAuth configuration after upgrading
See the migration guide for general Structr 6.x upgrade information

What changed, release by release.