Changelog

4.2.7 July 24, 2026

Added:

Session change highlighting and diff in decision matrices,
Support for licenses with a future valid-from date, shown as Pending,
Flows included in archival snapshot upload report and import history,
Context type name uniqueness validation,
Import results table in decision table upload dialog,
Tooltip explaining disabled in-memory level fields in decision tables.

Fixed:

Token invalidation when a user’s roles are reduced,
Token invalidation when a user’s login changes,
Role reduction and token handling for renamed users,
Access for users with profile rights but no global parameter read permission,
Write-only access to functions removed from perspectives,
Improved logging levels, user context in logs, and log injection sanitization,
Context attribute name conflict now reported as a validation error,
Duplicate region version prevention and clearer clone conflict errors,
Domain collection region resolution from region version,
Domain type collection deletion persisted on snapshot import,
Parameter region attachment synchronization,
Warning message when snapshot import skips dictionary rows,
Readable error when the Python runtime is misconfigured,
Domain collection details loading performance,
Decimal comma handling in list matcher values,
Alphabetical sorting of grants in the role edit dialog,
View action hidden for created elements in inactive region versions,
Clone button guarding and false profile warning after reload,
Context values included in generated runtime REST JSON,
Search results table column widths,
Profiler min/max time display and column alignment,
Return to test list from unsaved test via back button,
Exact match label visibility in light theme,
Sorting by the Flows column in region versions,
Licensee field naming and sorting in the license view,
Global search tag filtering and matched tag name display.

4.2.6 June 25, 2026

Added:

AI model source support with optional ONNX runtime behind a feature switch,
Active Directory custom roles filtering.

Fixed:

Decision table sort flags parsing,
Union input level blocked for non-in-memory decision tables,
OUT values overwritten by IN values when levels share the same code,
Matrix edit mode in decision table wizard step,
Decision table levels drag-and-drop reordering,
Duplicate rows caused by multi-click save in decision table matrix,
Inconsistent list value rendering for in/not-in matchers,
Locking IN columns in decision table matrix,
Dot character allowed in domain configuration element code,
Spurious unsaved-changes prompt after renaming configuration element,
Domain attribute drag-and-drop stability,
Region sorting in domain configuration collection view,
Greyed-out actions after cancelling logout,
Session draft preserved when navigating created elements,
Sorting by flows columns in profiles list,
Read-only user unable to run their own test,
Dashboard horizontal scroll at 100% zoom,
Empty file name column in import report,
Actions column alignment in Flows list,
Redundant horizontal scrollbar in context add-type dialog,
Custom date format parsing in date fields,
Empty-matrix import warning handling for external sources,
Stale head detection on re-import across user views,
Description changes detected in function/flow import checksum,
Import schedule comparison and transaction handling,
Priority parameter import in parallel mode,
Access-info performance on large profiles,
License key parsing for line-wrapped keys,
Validation message deserialization over REST,
Cross-region UID collision in action container,
Region version timestamp precision on MySQL.

4.2.5 April 21, 2026

Added:

Fullscreen mode for matrix in decision table editor.

Fixed:

Read-only user able to edit regions,
Incorrect value list for in/not-in matchers,
Upload options not displayed immediately after snapshot file selection,
Unhandled errors during snapshot upload,
Error not returned when uploading file with non-existent profile,
Silent success when importing Function with profile-unavailable region,
Silent success when importing Decision Table with profile-unavailable region,
Incorrect domain attribute tracking in tester add-element dialog,
Add-element dialog performance for large domain datasets,
Virtual scroll display glitch in tester domain view,
Null pointer exception in tester for MultiValue with empty index,
Incomplete output parameter values returned by tester,
Incorrect return value when comparing flow results on decision table,
External source matrix evaluation with matchers,
External source index creation performance,
Matrix snapshot import performance.

4.2.4 April 8, 2026

Added:

Exact match filter in dashboard search,
Decision table import from file on the detail view.

Changed:

Session change dot indicator with counter in overview.

Fixed:

Global Search exact match,
Function import performance,
Single test case execution performance,
BLOB column handling in matrix entry length validation,
Archived domain attributes included in XML export,
Oracle NULL conversion for empty default password,
Utility functions and flows in decision table output values,
Decision table sorting format normalization,
Context description field validation,
Context display in generated test JSON,
Session element selection counter after discarding changes,
Source filter dropdown clipping in overview,
Download button label in matrix section,
Session not opened when adding decision table level from matrix view,
Attach region button state when profile has no regions,
Double scroll in matrix.

4.2.3 March 10, 2026

CHANGES:

Added:

Batch element selection and removal in work session,
Region version description display,
Recently visited items tracking and dialog.

Fixed:

Configured database schema propagation for multi-schema setups,
Function description not restored from historical version,
Test case result comparison calculation,
‘Go to versions’ page navigation button routing,
Flow condition label alignment,
Change detection after domain import,
Context paths not cleared on profile change in decision tables,
List value parsing inside brackets in test results,
Decision table matrix viewport height,
Flow description validation in edit dialog,
Profiler detail view readability,
Redundant RESULT header in single test result view,
Long test case package name display,
Dropdown menus not working in dialogs,
UUID generation incompatibility in non-HTTPS environments,
Null domain attribute value display in global search,
Domain attribute search resolver null handling,
GMO cache configuration,
Cache not updated after attaching decision table to region,
Global search for type-level domain attributes,
Deadlock on profile deletion in MSSQL,
Session error when multiple elements share the same identifier.

4.2.2 February 11, 2026

CHANGES:

Added:

Archival version navigation in decision table and function history,
Master parameter display in alias decision table headers,
Session change indicators in overview lists,
Bulk removal action for test cases in batch tester,
Default ’equals’ matcher label in decision tables,
Matrix entry value length validation,
Context argument description in test case view,
Decision table alias history,
Java object list formatting as JSON in test results,
Search engine in tags and regions filters for decision tables and functions,
Configuration-based visibility for persistence UI elements,
Flows support in profile configuration,
Set tags in all versions for flows,
Column resizing and filtering in session preview table.

Changed:

Session access permissions with new SESSION_WRITE_ALL and SESSION_READ_ALL rights.

Fixed:

Session list loading performance,
User profile not persisted after logout,
Flow export to SVG file naming,
Access to ‘Manage tags’ in overview,
Missing notification when session publishing blocked by snapshot import,
Function argument names validation for Groovy reserved keywords,
Unsaved changes detection in domain configuration editing,
Session controls not refreshing across multiple browser tabs,
Tags row display when saving with invalid characters,
Flow save validation for START/END nodes without returned variable,
Domain attribute search and tree performance in tester,
Error message for email field character limit,
Domain description validation pattern,
Domain search functionality,
Decision table level selector sizing,
Language-specific characters in context description,
Region handling for aliases during parameter import without region,
Function arguments not refreshing after test case execution,
False positive change detection during snapshot upload with different user roles,
Context paths resolution for non-root contexts,
Dictionary levels validation on import,
UnknownHostException when loading properties,
Database schema propagation to DialectRegistry,
Incorrect sorting of version numbers,
Dynamic domain tree width,
Button not disabled after profile deletion in domain,
OUT validation not allowing square brackets in decision tables,
Function listing not fitting in window,
Incorrect matrix display when duplicating rows,
Unnecessary step when adding business attribute,
Profile deletion not disabled when session is active.

4.2.1 January 13, 2026

CHANGES:

Fixed:

Non-existent parameter causes snapshot import error,
Fixed fetching entries for slave decision table,
Property user.home can cause UnknownHostException,
Upload snapshot can cause cohesion conflict,
Incorrect schedule cache during snapshot import,
Test case load local attribute error,
Updating user and roles when logging in by Active Directory,
Logout not working when using Active Directory,
Missing domain tree after snapshot import,
Improved validation for function specified class argument,
Changing definition of bundle can cause error,
Incorrectly adding tag to param,
Remove bookmark when removing decision table,
Getting paths for context with reference cycle,
Improved token malformed response,
Invalid token for case sensitive emails,
Incorrect matrix row location,
Added + sign to allowed characters for code,
Validation for duplicate email,
Validation for duplicate context attribute,
Batch tester shows no result,
Condition window is not blocked on flows creator,
Improved grants list presentation

Added:

Studio token support,
Dedicated right for tester,
Separate flows in profiler,
Blocking work session publication when importing snapshot,
Lock import per user,
Block publish\reject session by admin on other user if import snap is in progress,
Missing boolean values to validation pattern,
Duplicate role action,
Digest column to decision table history,
Filtering by body to function list

4.2.0 October 15, 2025

CHANGES:

Introduced AI Integration - Higson now supports models in the Open Neural Network Exchange (ONNX) format. This integration enables seamless execution of machine learning models directly within business rules, ensuring faster inference, full auditability, and no need for external ML services.
Added Flows - A brand-new feature for visual process orchestration. Flows allow users to design, monitor, and optimize decision and process flows within Higson Studio, making complex business logic easier to visualize and maintain.
Refactor of roles & grants - Refactoring roles and permissions simplifies user access configuration, improves visibility of dependencies, and speeds up security configuration.
Enhanced Studio performance - Significant improvements to Higson Studio’s data handling deliver a smoother user experience.
Refined Light Mode - The light theme has been visually refined for better contrast, readability, and overall usability. The updated color palette improves focus during long work sessions and provides a more comfortable experience in bright environments.
Security and compliance updates - Updated libraries enhance the overall security posture of the system.