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Release notes

Use this page to track changes per Syntho release. New releases are listed first.

Upgrading a self-hosted deployment? Use the matching guide:

What we include

  • Added: new features.

  • Improved: UX, performance, and maintainability changes.

  • Fixed: bug fixes.

  • Security: security fixes, CVEs, and dependency upgrades.

  • Breaking changes: anything that requires action after upgrading.

Releases

2026.1.15

Release date: 6 June 2026

Changes

Improved

  • Updated Random Character Swap 2.0 to be case-insensitive w/ consistent mapping ON.

  • Improved validation for generator schema parameters.

  • Improved table validation by skipping unnecessary n_rows checks.

  • Improved Parquet output handling for INT64 precision.

  • Renamed Redis-related artifacts to queue for clearer terminology.

Fixed

  • Fixed date formulas in Computed mockers on DATE columns.

  • Fixed handling of implied unique generators.

  • Databricks: Updated token handling.

2026.1.14

Release date: 4 June 2026

Changes

Added

  • Added support for generating rows based on the source row count.

Improved

  • Improved the job summary to make generation checks clearer.

  • Improved column syncing performance by removing an unnecessary generator preview step.

  • Simplified generation settings by removing the read random subset option.

2026.1.13

Release date: 29 May, 2026

Changes

Improved

  • Improved migration bf5a008a9e78 to only consider CURRENT databases and safely remove stale rows.

Fixed

  • Fixed an issue where the build artifact step did not use the specified version.

2026.1.12

Release date: 22 May, 2026

Changes

Improved

  • Avoided loading the full workspace when possible to improve the speed of workspace operations.

2026.1.11

Release date: 15 May, 2026

Changes

Improved

  • Enabled identity writing by default.

  • Combined table warnings into a single warning tooltip.

  • Improved application messaging for clearer and more consistent communication.

  • Improved alignment of permission-limited action buttons across the UI.

  • Improved tooltip visibility for excluded tables.

  • Improved engine import performance by adding an index to the column configuration table.

  • Read and write batch sizes are now unified into one parameter.

Fixed

  • Fixed various small UI issues.

  • Fixed duplicate owner handling.

  • Fixed issues in custom string generation.

  • Fixed job timestamp serialization in the jobs endpoint.

Security

  • Fixed CVE-2026-39892.

  • Fixed CVE-2026-40192.

  • Fixed CVE-2026-3902.

  • Fixed CVE-2026-28684.

  • Fixed CVE-2026-33672.

  • Fixed CVE-2025-69277.

  • Fixed AIKIDO-2026-10385.

  • Fixed AIKIDO-2026-10369.

2026.1.10

Release date: 13 April, 2026

Changes

Added

  • Datasource caching to improve performance and reduce repeated data fetching.

2026.1.9

Release date: 13 April, 2026

Changes

Added

  • Workspace export and import, making it easier to move workspace configurations between environments.

  • Support for generating empty tables when needed.

Improved

  • Main hub and Hash key generator are no longer marked as beta.

  • Calculated columns behavior for DATEDIFF and DATEADD, including better handling of nullable columns, RAND-based intervals, pasted expressions, and int-like values generated by mockers.

  • Generator selection in the table view, including better ordering and hiding generator types that are not compatible with the column data type.

  • Workspace synchronization flow, including a reset of the active workspace after sync actions and fresher table data after updates.

  • UI refinements across the platform, including improved hover tooltips, bulk include/exclude toggle alignment, table scrolling in sync mode, and icon sizing in job confirmation summaries.

  • API notebook improvements.

Fixed

  • An issue that could prevent a generator from being serialized.

  • Datetime-like data clamping behavior.

  • Decimal clamping validation.

  • Computed formulas on nullable columns.

  • Hardcoded PII modification for key columns.

Security

  • Implemented CSP and Permissions-Policy headers.

  • Fixed CVE-2026-27459.

  • Fixed CVE-2026-30922.

  • Fixed CVE-2026-4800.

  • Fixed CVE-2026-32597.

  • Fixed CVE-2026-22815.

2026.1.8

Release date: 27 March, 2026

Changes

Added

  • Workspace export and import functionality to move configurations between environments.

Improved

  • Decimal clamping validation to ensure more accurate handling of numeric limits.

2026.1.7

Release date: 24 March, 2026

Changes

Added

  • Column Privacy Ranking in the privacy audit flow, to help prioritize columns based on privacy status.

  • A warning for Databricks cases where a case statement result is truncated.

  • Support for configuring the maximum parallel jobs through an environment variable.

Improved

  • Target form validation in the generation flow.

  • Capabilities handling for better overall performance.

Fixed

  • Fixed update engine conditions for update engine jobs.

Security

  • None.

2026.1.6

Release date: 19 March 2026

Changes

Added

  • Support for configuring core application settings through environment variables.

  • Initial supported variables: DATABRICKS_READ_STMT_MAX_ATTEMPTS, DATABRICKS_READ_STMT_INITIAL_WAIT, and LOG_LEVEL.

Security

  • Fixed security issues.

  • Addressed dependency advisories for: CVE-2025-69223, CVE-2026-21441, CVE-2026-21226, CVE-2026-23490, CVE-2025-69277, CVE-2025-66034, CVE-2026-0994, CVE-2025-14550, GHSA-h25m-26qc-wcjf, CVE-2026-22036, CVE-2025-13465, and CVE-2026-24486.

2026.1.5

Release date: 19 March 2026

Changes

Added

  • Databricks: Added a retry mechanism with exponential backoff for warehouse reads to handle the 1-hour limit on available data chunks.

2026.1.4

Release date: 16 March 2026

Changes

Added

  • Added support for the Generators domain model.

  • Added a new sync condition to trigger source sync after target sync.

Improved

  • Databricks: Added a timeout when retrieving statement results to improve connector reliability.

  • Improved handling of target schema updates when connection details change.

Fixed

  • Fixed an issue where the Noise generator could fail on decimal values.

2026.1.3

Release date: 9 March 2026

Changes

Added

  • Added include and exclude states to table ordering for easier table selection management. This aligns with Syntho’s include/exclude table workflow in Table view.

Improved

  • Removed subsetting-related code from Backend and CoreAPI to simplify internal maintenance. Syntho documents subsetting as a dedicated workflow, so this change appears to streamline separation of concerns.

  • Databricks: Updated Warehouse ID handling. Syntho supports an optional Warehouse ID for Databricks workspaces, where it is recommended for faster and more stable querying.

  • Added the missing light_version parameter on the engine repository call.

  • Introduced the Privacy audit report.

Fixed

  • Fixed an issue affecting custom string and Custom sampler behavior. Custom sampler is a documented generator in Syntho.

  • Oracle: Removed an issue related to DROP INDEX compilation.

  • Fixed a regression introduced in an earlier release.

  • Fixed internal connector/backend behavior related to custom string and sampling configuration.

Security

  • No CVE IDs were listed for this release.

2026.1.2

Release date: 24 February 2026

Changes

Added

  • Added a substring method to version and build information to truncate long strings.

Improved

  • Refactored API endpoints to use services instead of repositories, improving maintainability and separation of concerns.

  • Databricks: Made the Warehouse ID parameter optional when configuring the connection.

Fixed

  • MySQL: Fixed the query used to check DROP INDEX operations.

Security

  • No CVE IDs were listed for this release.

2026.1.1

Release date: 17 February 2026

Changes

Improved

Implementation of data reading by utilizing Databricks API for better memory performance and faster data read.

2026.1.0

Release date: 16 February 2026

Changes

Added

  • Job attachment support.

  • Source sync when editing a job.

  • Bulk selection toggle for all subcategories.

  • GitBook AI assistant integration.

  • Feature functionality management enabled by default.

Improved

  • Faster engine settings update.

  • Refactored engine and connection forms.

  • Long table names now display with a middle ellipsis.

  • Optimized CI/CD pipeline.

  • Upgraded core Ray base image to 2.53.0.

  • Updated oracledb to the latest version.

  • Removed unused packages in the core module.

Fixed

  • Schema issues in status updates.

  • Unstable schema views rendering.

  • Workspace creation status updates.

  • Capability selection reset after validation.

  • Protected/Unprotected Key PII columns classification.

  • Workspace sync issues when using a filesystem-based target connector.

  • Default settings update.

  • Job status issues.

  • Inheritance issue in CoreAPI services.

  • Generate page layout issue.

Security

  • Improved security by addressing a template injection vulnerability in GitHub Workflows Action.

Dependency advisories fixed

  • CVE-2025-69223

  • CVE-2026-21441

  • CVE-2026-21226

  • CVE-2026-23490

  • CVE-2025-69277

  • CVE-2025-66034

  • CVE-2026-0994

  • CVE-2025-14550

  • GHSA-h25m-26qc-wcjf

  • CVE-2026-22036

  • CVE-2025-13465

  • CVE-2026-24486

Breaking changes

None.

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