Karez Release Notes

Table of contents

Release Date: July 22nd, 2026

Overview

  • Dataset generation for information products
  • Extended data glossary metadata
  • ODS Insert Only load strategy
  • Case‑sensitive environment renaming
  • Bug fixes.

New Features

  • Dataset generation for information products: Implementation of a generic and reusable dataset generation framework. This enables consistent, reproducible datasets with clear traceability between source data, transformations and outputs, supporting scalability and compliance.
  • ODS Insert Only load strategy: A new ODS load strategy (OI) has been introduced. This strategy appends incoming records to ODS tables without removing existing data. No duplicate detection or primary key validation is performed.

Enhancements

  • Extended data glossary metadata: Extension of the data glossary with additional attribute‑level metadata, such as PII indicators, GDPR forgettability and key relationships. This information will be available in the portal and documentation.
  • Case sensitive environment renaming: Improved validation to allow renaming environments where only the casing changes (for example ONS → ons), without causing conflicts.

Changes

  • None

Bug Fixes

  • Date conversion during staging loads: Fixed an issue where date values formatted as YYYYMMDD could fail during staging loads after upgrading to Karez 2.5.0.
  • Diagnostics portal pagination: Fixed an issue where row identifiers were reset on each page, causing incorrect row actions in paginated diagnostics tables.
  • Diagnostics status reporting: Fixed an issue where diagnostics could show incorrect status and error information when failures occurred earlier in a processing pipeline.
  • Data mart documentation: Fixed an issue that prevented attribute definitions from being displayed in generated data mart documentation.

Known Issues

  • None

Deprecated Features

  • None

Upcoming Changes

  • Karez 2.7.0, expected October 14th, 2026

How to Get Help or Provide Feedback

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Release Date: May 21st, 2026

Overview

  • Bug fixes.

New Features

  • None

Enhancements

  • None

Changes

  • None

Bug Fixes

  • Extended date format support: String-to-date casting has been enhanced to support a broader range of ISO 8601 date formats (including compact representations such as YYYYMMDD). This ensures reliable conversion of date values during data loads, even when source fields are delivered as strings.

    The new date/time handling introduces a breaking change. Empty strings are not considered valid dates anymore. Karez used to interpret these as 1900-01-01, which is the default SQL Server behaviour. If your sources return empty date or time strings, you need to handle this in the data pipeline that provides data to karez.

    The following ISO 8601 constructs are not supported:

    • Week dates (2026-W12-3)
    • Ordinal dates (2026-075)
    • Durations (P1DT2H)
    • Intervals (2026-01-01/2026-01-02)

Known Issues

  • None

Deprecated Features

  • None

Upcoming Changes

  • Karez 2.6.0, expected July 22nd, 2026

How to Get Help or Provide Feedback

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Release Date: May 6th, 2026

Overview

  • Bug fixes.

New Features

  • None

Enhancements

  • None

Changes

  • None

Bug Fixes

  • Improved datamart documentation: Datamart documentation generated via the Karez portal now correctly displays attribute definitions, providing a complete and accurate overview of the data model.
  • Diagnostics page – correct row actions with pagination: Row-level actions on the Diagnostics page now work correctly across all paginated pages, ensuring that details shown always match the selected row.
  • More accurate diagnostics status and error reporting: Errors in the staging to HDA process are now shown correctly in the portal. When a failure occurs, the overall status is marked as Failed and the relevant error code is displayed, improving transparency and troubleshooting.

Known Issues

  • None

Deprecated Features

  • None

Upcoming Changes

  • Karez 2.6.0, expected July 22nd, 2026

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Release Date: April 15th, 2026

Overview

  • Limit app service plan taxation.

New Features

  • Limit app service plan taxation: data processing is more robust and more performant.

Enhancements

  • None

Bug Fixes

  • None


Known Issues

  • None

Deprecated Features

  • None

Upcoming Changes

  • Karez 2.6.0, expected July 22nd, 2026

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Release Date: February 19th, 2026

Overview

  • Bug fix

New Features

  • None

Enhancements

  • None

Bug Fixes

  • Three issues have been resolved that caused data‑type mappings to be applied incorrectly during code generation:

    • An incorrect mapping from NVARCHAR(MAX) → VARCHAR(MAX) has been removed.
    • The NSC implementation now uses the environment code instead of the environment name to retrieve data‑type mapping rules.
    • Data‑type mappings are now applied before column‑datatype validation, preventing validation errors for columns using unsupported types such as text.

These changes ensure that data‑type conversions are handled correctly and that code‑generation validation errors are resolved.

Known Issues

  • None

Deprecated Features

  • None

Upcoming Changes

  • Karez 2.5.0, expected April 15th, 2026

How to Get Help or Provide Feedback

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Release Date: February 11th, 2026

Overview

  • Bug fix

New Features

  • None

Enhancements

  • None

Changes

  • None

Bug Fixes

  • During metadata reloads in Source Connect, the targetName of domains, entities, attributes, and related objects was incorrectly overwritten, even when no new value was provided. This violated NSC load principles, where optional and loosely required fields should keep their existing values unless explicitly updated.

Known Issues

  • None

Deprecated Features

  • None

Upcoming Changes

  • Karez 2.4.2, expected February 19th, 2026

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Release Date: January 30th, 2026

Overview

  • Revert to earlier version of generated code per environment
  • Automatic deployment of Karez resources
  • CRUD functionality for privileges
  • Complete timelines in diagnostics graphs
  • Source Connect domain resolution change
  • Remove Karez version in generated code

New Features

  • Revert to earlier version of generated code per environment: Currently the generated code is removed when a new version of the code is generated without the possibility to revert to the previous version. With this new functionality it will be possible to return to a previous version of generated code. (Historical code storage)
  • Automatic deployment of Karez resources: Create a deployment agent in the customer environment and a deployment package with deployment resources and deployment configuration to be able to deploy new functionality automatically.
  • CRUD functionality for priviliges: The privileges page now supports creating identities and role assignments directly in the portal. Users can manage roles and identities without external tools, improving flexibility and control.

Enhancements

  • Source Connect domain resolution change: In previous versions, Karez used the environment name to determine the Source Connect domain when generating code. Because environment names can be changed, this could in some cases lead to unexpected behavior.
    Starting with Karez 2.4.0, Karez will use the environment code instead. The environment code is immutable and therefore provides a more reliable way to resolve the correct Source Connect domain.
    What this means for you
    If you use Source Connect for code generation, you must update your Source Connect domain names to match the corresponding Karez environment codes. This change is required for code generation to continue working after upgrading to Karez 2.4.0.
  • Starting from Karez 2.4.0 the Karez version will not be added to the newly generated DDL/DML code for HDA and ODS. This prevents confusion caused by incorrect version tags. Existing code remains unaffected.

Changes

  • Complete timelines in diagnostics graphs: Diagnostics graphs now display consistent timelines using time buckets for different periods (e.g., hourly for last 24 hours, daily for last 30 days). This provides clearer insights into activity trends over time.

Bug Fixes

  • None

Known Issues

  • None

Deprecated Features

  • None

Upcoming Changes

  • Karez 2.5.0, expected April 15th, 2026

How to Get Help or Provide Feedback

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Release Date: January 22nd, 2026

Overview

  • Bug fix

New Features

  • None

Enhancements

  • None

Changes

  • None

Bug Fixes

  • A display issue was identified in Chrome/Edge and Firefox where checkboxes were not rendered correctly due to recent browser updates.

    This affected the following areas:

    o Environment > Configure/Create HDA views

    o Environment > Configure/Create ODS views

    o Environment > Export

Known Issues

  • None

Deprecated Features

  • None

Upcoming Changes

  • Karez 2.4.0, expected January 30th, 2026

How to Get Help or Provide Feedback

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Release Date: October 29th, 2025

Overview

  • Improved Reliability for File Processing (patch 2.3.1)

New Features

  • None

Enhancements

  • Improved Reliability for File Processing: A safeguard has been added to make the system more resilient when Azure Storage has temporary issues. If a communication error occurs while starting a process, the system will now automatically retry several times before stopping. This helps ensure that file processing continues smoothly without requiring manual action.

Changes

  • None

Bug Fixes

  • None

Known Issues

  • None

Deprecated Features

  • None

Upcoming Changes

  • Karez 2.4.0, expected January 22nd, 2026

How to Get Help or Provide Feedback

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Release Date: October 22nd, 2025

Overview

  • Diagnostics when starting processes
  • Database wakeup call if offline

New Features

  • Diagnostics when starting processes: Create diagnostic record when starting processes, and show process status instead of only having diagnostic records when ingestion process has been completed
  • Database wakeup call if offline: With VCore databases, Karez 2.3.0 increases the connection timeout and waits if needed for the database to wake up. This prevents processing issues and ensures diagnostics are captured

Enhancements

  • None

Changes

  • None

Bug Fixes

  • None

Known Issues

  • None

Deprecated Features

  • None

Upcoming Changes

  • Karez 2.4.0, expected January 22nd, 2026

How to Get Help or Provide Feedback

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Release Date: August 19th, 2025

Overview

  • Handle multiple events per JSON

New Features

  • Handle multiple events per JSON

Enhancements

  • None

Changes

  • None

Bug Fixes

  • None

Known Issues

  • None

Deprecated Features

  • None

Upcoming Changes

  • Karez 2.3.0, expected October 22nd, 2025
    • Diagnostics when starting processes

How to Get Help or Provide Feedback

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Release Date: July 22nd, 2025

Overview

  • Source model change detection and resolution
  • Source type conversion to SQL server types in NSC
  • NSC UI (CRUD – Create Update Delete)

New Features

  • Karez comes with the following functionality:
    • Business functions (user interaction) available:
      • Functionality to assist users to update staging, HDA and ODS structures when source models change
      • Karez Portal, add change read update and delete functionality for:
        • NSC environments
        • Domains, Entities, Attributes, Entity Constraints, Attribute Constraints, Entity Relations and Attribute Relations

Enhancements

  • Allow copy from portal tables
  • Automated data type conversion based on best practice

Changes

  • None

Bug Fixes

  • None

Known Issues

  • None

Deprecated Features

  • None

Upcoming Changes

  • Karez 2.2.1, expected tbd
    • Handle multiple events per JSON
  • Karez 2.3.0, expected October 22nd, 2025
    • Diagnostics when starting processes

How to Get Help or Provide Feedback

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Release Date: April 22nd, 2025

Overview

  • Upgrade to Python 3.11
  • Additions to Karez user Portal

New Features

  • Karez comes with the following functionality:

    • Business functions (user interaction) available:

      • Karez Portal:
        • New visuals and options for process diagnostics
        • Extra options for environment management
        • Management for Source Connect
        • Overview of user privileges withing Karez

Enhancements

  • Send Teams notifications without keeping VCore databases awake

Changes

  • None

Bug Fixes

  • None

Known Issues

  • Loading Source documentation and reporting documentation for large environments takes a long time.

Deprecated Features

  • None

Upcoming Changes

  • Karez 2.1.1, expected May 20, 2025

    • Fix for simultaneously loading both staging and HDA tables

  • Karez 2.1.2, expected June 17, 2025

    • Diagnostics when starting processes

How to Get Help or Provide Feedback

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Release Date: February 5th, 2025

Overview

  • Fixes for known issues in Karez 2.0

New Features

  • Karez comes with the following functionality:
    • Business functions (user interaction) available:
      • Metadata management:
        • Functionality previousely available in NSC is integrated in Karez.
      • Code generation:
        • QUIPU has been replaced by an integrated way of generating code.
        • Code can be generated from an interface database or from metadata stored in Karez.
      • Portal:
        • Functionality for environment management and code generation is available via a web-based portal.

Enhancements

  • None

Changes

  • None

Bug Fixes

  • Not all files are being processed
    • In some cases, files added to Karez are processed a long time after they are provided, or not at all.
  • Errors during metadata loading
    • While metadata of excluded objects is loaded, this can cause constraint violations.

Known Issues

  • None

Deprecated Features

  • None

Upcoming Changes

  • Extension of portal functionality

How to Get Help or Provide Feedback

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Release Date: January 20th, 2025

Overview

This is the first stable release of Karez.

New Features

  • Karez comes with the following functionality:
    • Business functions (user interaction) available:
      • Metadata management:
        • Functionality previousely available in NSC is integrated in Karez.
      • Code generation:
        • QUIPU has been replaced by an integrated way of generating code.
        • Code can be generated from an interface database or from metadata stored in Karez.
      • Portal:
        • Functionality for environment management and code generation is available via a web-based portal.

Enhancements

  • None

Changes

  • None

Bug Fixes

  • None

Known Issues

  • Not all files are being processed
    • In some cases, files added to Karez are processed a long time after they are provided, or not at all.
    • Workaround: restarting the NSI app.
  • Errors during metadata loading
    • While metadata of excluded objects is loaded, this can cause constraint violations.
    • Workaround: include the objects before loading metadata and exclude them afterwards.

Deprecated Features

  • None

Upcoming Changes

  • Bug fixes for known issues
  • Extension of portal functionality

How to Get Help or Provide Feedback

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Release Date: October 1st, 2024

Overview

This is the second stable release of NAIA Start.

New Features

  • NAIA Start comes with the following functionality:
    • Business functions (user interaction) available:
      • Notifications:
        • Signaling of critical errors via e-mail alerts.
        • Signaling of critical errors via Microsoft Teams.
      • Security:
        • Best practice implementation of security principals for the internal database.
      • Operational datastore (ODS)
        • Load pattern to store operational data without retaining history.

Enhancements

  • None

Changes

  • None

Bug Fixes

  • Ingest process does not crash when the process is restarted

Known Issues

  • None

Deprecated Features

  • None

Upcoming Changes

  • Release 2.0 (expected January 2025)
    • Embedding code generation features in NAIA.
    • Portal to interact with NAIA.

How to Get Help or Provide Feedback

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Release Date: February 25th, 2024

Overview

This is the first stable release of NAIA Start en NAIA  Source Connect.

New Features

  • NAIA Start comes with the following functionality:
    • Business functions (user interaction) available:
      • Ingestion:
        • Raw data zone: Environment to store Parquet files.
        • Reload Webportal.
      • Usage:
        • Ready to use data views on HAD (actual and historical) for reporting / dashboards.
        • Configurable source data checks (Data Quality Information).
        • Date/time functionality to support datasets and reporting.
      • Monitoring:
        • Central logging for all data processing.
        • Error Logging on data processing for root cause analysis.
        • Signaling of critical errors via e-mail alerts.
    • Development functions available:
      • Quipu tool for adding new sources into NAIA Start environment.
    • NAIA internal functions are available:
      • Scalable and trusted storage for all data types, both raw and combined, including history for tracking and tracing to the source. All incoming data in NAIA is archived and available in a data lake. Analytic functionality is provided via an SQL engine.
      • Automatic proposals for NAIA model changes based on source model changes (via NSC).
      • Data processing and data quality assessment overviews.
  • NSC (NAIA Source Connect)  comes with the following functionality:
    • Development functions available:
      • Store and maintain metadata of source systems to in a managed environment.
      • Define simple transformations of data types (to prevent future issues due to domain changes).
      • Assist in obtaining data and metadata from source systems.
    • NSC internal functions available:
      • Automatic conversion of datatypes to NAIA equivalent (using best practice).
      • Source specific ingest code-generation for NAIA ingest processing.
      • Extend NAIA processing control and lineage from transient landing zone back to source systems (configurable).
      • Automatic detection of source model changes.
      • Metadata Management supporting NSC functionality for data selection and translation.

Enhancements

  • None

Changes

  • None

Bug Fixes

  • None

Known Issues

  • None

Deprecated Features

  • None

Upcoming Changes

  • None

How to Get Help or Provide Feedback

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Welkom in de toekomst van data

Met Karez tillen we data & analytics naar een hoger niveau. Dit platform is ontworpen om organisaties slimmer, efficiënter en veiliger te laten werken met hun data. Geen tijd meer verspillen aan randzaken – maar direct focussen op wat écht waarde toevoegt.

Stap samen met ons in de toekomst.
Welkom bij Karez.