# SingleStore Flow Release Notes ## Maintenance Release Changelog ## SingleStore Ingest ## 2026/09/15 Version [4.5.4\_41dd1b10](https://release.memsql.com/singlestoreflow/production/4.5.4-41dd1b10/ingest.jar) ## Features * Added MariaDB source support. * Added support for MySQL `BINARY` and `VARBINARY` data types. * Added the XL `skip-initial-extract` table filter. * Preserved configured special characters in destination names, including hyphens. * Preserved shard keys and sort keys through schema evolution. * Fixed `ClassNotFoundException` on Linux by starting with` java -jar `instead of direct class reference. ## Fixes * Hardened JDBC driver loading to prevent arbitrary class initialization. * Improved recovery when MySQL Fast CDC encounters a rejected binlog position. * Improved reliability when disk space is exhausted, preventing loss of CDC data and configuration corruption. * Improved performance when processing very large cells, including large JSON values. * Removed a destination setting that could unexpectedly stop CDC. * Prevented MySQL Fast dump data from accumulating when the scheduler is disabled. * Improved MySQL Fast CDC stability when acknowledgments are delayed. ## 2026/09/02 Version [4.5.3\_8d19520d](https://release.memsql.com/singlestoreflow/production/4.5.3-8d19520d/ingest.jar) ## Features * Queued **Sync Struct** and **Sync New** operations until an extract is in progress. ## Fixes * Corrected run reports to use source-side counts. * Fixed PostgreSQL `DELETE` handling after a table mismatch, including tables with all-NULL primary keys. * Fixed false PostgreSQL column-mismatch errors after updates. ## 2026/08/27 Version [4.5.2\_20903633](https://release.memsql.com/singlestoreflow/production/4.5.2-20903633/ingest.jar) ## Features * Added a configurable PostgreSQL CDC catch-up window based on commit time. * Improved load reliability for large tables and out-of-memory conditions. ## Fixes * Improved destination column-name handling when spaces are converted to underscores, while keeping names stable across subsequent changes. * Kept related partial-update operations together during update collapsing. * Made scheduler status consistent across /metrics and /status. * Fixed destination handling for MySQL ENUM values containing parentheses. * Prevented MySQL ENUM values from being interpreted as binary types. * Removed a stale MySQL ENUM startup warning. * Prevented duplicate primary keys when multiple updates occur in a single delta. * Improved recovery when the destination schema changes during XL onboarding. * Improved Reports UI alignment and tooltips. ## 2026/08/11 Version [4.5.1\_770b588d](https://release.memsql.com/singlestoreflow/production/4.5.1-770b588d/ingest.jar) ## Fixes * Added SQL injection hardening through safer SQL handling. * Improved support for schema, table, column, and primary-key names containing hyphens, reserved words, or leading digits. * Improved upgrade compatibility for MySQL Fast. * Prevented concurrent loads from being incorrectly reported as failed. * Reported unconfigured sources as Stopped instead of Error. * Disabled rollback for PostgreSQL sources. * Improved MySQL handling of `ZEROFILL` columns during destination creation. * Fixed PostgreSQL delta errors involving commit timestamps without fractional seconds. * Prevented duplicate history rows for Oracle LOB/XML changes. * Improved PostgreSQL CDC parsing for values containing apostrophes and added more context to parse errors. * Improved XL onboarding reliability during concurrent CDC loads. * Allowed completed XL onboarding to be run again. ## 2026/07/23 Version [4.5.0\_b9df345a](https://release.memsql.com/singlestoreflow/production/4.5.0-b9df345a/ingest.jar) **Features**  * Added schema evolution support for PostgreSQL during CDC, including detection and application of column additions and removals. * Added schema evolution support for MySQL during CDC, including handling for column changes and ENUM value changes. * Added selected-table size and row-count statistics. * Improved Postgres and MySQL metrics. **Fixes**  * Fixed a MySQL binlog column mismatch issue that could occur when multiple table-map events share a transaction. * Fixed a destination connection leak during CDC polling. * Fixed an issue where delta changes could appear as **Full Extract** after **Sync New Tables**. * Fixed 0-row tables so they are marked **No Change** and the progress timer stops. ## 2026/04/30 Version [4.4.2\_38b8f072](https://release.memsql.com/singlestoreflow/production/4.4.2-38b8f072/ingest.jar) **Features**  * Tables with no primary key no longer produce errors and are skipped during delta extracts with a warning message. This applies to Oracle Full Extract, Oracle Log Miner, MySQL Fast Extractor, and Postgres drivers. * Added support for full extract on SingleStore as a source database (non-production preview). * `ENUM` data type in Postgres is now converted to VARCHAR(256) in the destination table. * UI now displays timestamps according to the browser's locale settings. **Fixes**  * Fixed issues with loading `NULL` values for `INT` and `DATE` data types from Oracle source databases. * Fixed display of long table names in the UI to prevent truncation. **Known Issues**  * Some data types are not handled correctly when using SingleStore as a source database. ## 2026/04/02 Version [4.4.0 (7385e0f)](https://github.com/memsql/singlestore-flow/actions/runs/23836780354/artifacts/6215388646) **Features**  * Added support for MySQL Fast Extractor (Currently in Preview). * Added support for `BIT(n)` datatype in MySQL. * Connection UI enhancements – Simplified connection setup by removing the **Confirm Password** field for all source drivers and the **Database name ** field for SingleStore. **Fixes**  * Fixed an issue that caused data containing backslashes to be processed incorrectly. * Fixed an issue where refreshing the UI resulted in a whitelabel error page. **Known Issues**  * Invalid dates are loaded as 1970-01-01 in MySQL. ## 2026/02/19 Version [4.3.5 (4112eaa)](https://bryteflow.com/release/singlestore/ingest/435-4112eaa/ingest.zip) **Features**  * Unsupported datatypes are highlighted in the UI and tables with these types can no longer be selected * Added support for partitioned tables in Postgres * Invalid dates in MySQL (like year `0000`) are converted to supported values * The test connection for Postgres provides more detailed information * The `BOOL` / `BOOLEAN` type in MySQL and Postgres is now created as `TINYINT(1)` * `NUMERIC` in Postgres is now created as `DECIMAL(65,30)` * Added support for the `ENUM` type in MySQL **Fixes**  * Record count in loading logs now reflects the actual value **Known Issues**  * Some data types may erroneously appear as unsupported ## 2025/12/11 Version [4.3.0 (7d351cf)](https://bryteflow.com/release/singlestore/ingest/430-7d351cf/ingest.zip) **Features**  * Added support for Salesforce as a source **Fixes**  * Updates made based on latest vulnerability tests * The license is now displayed in units rather than GB * Updates made to replace schema with database in reference to SingleStore * Updated the Snowflake driver **Known Issues**  * Compound columns in Salesforce are not supported * Sync struct may show a mismatch for integer columns in Salesforce * CDC Delete may not be captured for some tables in Salesforce * The Snowflake driver may produce errors. The recommended workaround is to include the following JDBC options: ``` &JDBC_QUERY_RESULT_FORMAT=JSON&CLIENT_METADATA_REQUEST_USE_CONNECTION_CTX=true&DISABLE_GCS_DEFAULT_CREDENTIALS=true ``` ## 2025/11/21 Version [4.2.1 (ef8b557)](https://bryteflow.com/release/singlestore/ingest/421-ef8b557/ingest.zip) **Features**  * Re-themed the UI to closely align with SingleStore's brand * Added SSL support for MySQL * PostgreSQL TEXT\[] arrays are now handled as JSON in SingleStore * The test connection for MySQL no longer displays an "Unable to Parse" error for basic credential-related issues * Suppressed extraneous messages on console on startup ## 2025/09/13 Version [4.1.7(9f09aa2)](https://bryteflow.com/release/singlestore/ingest/417-9f09aa2/ingest.zip) **Features**  * Added ability to suppress Table Structure Sync in use cases where the destination tables are manually created * Added support for Where condition for Oracle Full Extracts * Table and columns using reserved words will be retained by default **Fixes**  * Null values in JSON columns are correctly handled for Postgres **Known Issues**  * Dropped columns in the source are not detected on structure sync * Some structure sync operations may fail without indication of error ## 2025/09/03 Version [4.1.6 (a8a074a)](https://bryteflow.com/release/singlestore/ingest/416-a8a074a/ingest.zip) **Fixes**  * Fixed the "Queue Full" error in MySQL Continuous Mining * The binlog now reconnects after exiting due to network errors in MySQL Continuous Mining * Added support for license-free trial use * Removed deprecated AWS options in the UI * Fixed an issue where only the first transaction in a batch was processed for MySQL Continuous Mining ## 2025/08/20 Version [4.1.4 (00d0934)](https://bryteflow.com/release/singlestore/ingest/414-00d0934/ingest.zip) **Features**  * Added support for non-production free license **Fixes**  * Nulls and zero length strings loaded with no change * Fixed out-of-memory error for MySQL full extracts * Subsequent transactions in a batch are no longer ignored * Added handling for table and column names using reserved words ## 2025/06/04 Version [4.1\_b875](https://bryteflow.com/release/singlestore/ingest/41-b875/ingest.zip) **Features**  * Added support for SingleStore as a source to the Any Database driver * Real-time CDC for MySQL - Added a new dropdown “Continuous” to MySQL * Added support for multi-tenant databases **Fixes**  * More consistent display of tables in databases without a schema (or database) ## 2025/05/08 Version [4.1\_b804](https://bryteflow.com/release/singlestore/ingest/41-b804/ingest.zip) **Features**  * Added support for MongoDB (private preview only) * Added support for Where clause for Snowflake source **Fixes**  * Handled database and table names with hyphens. Hyphen changed to an underscore in the destination * When history is stored, all timestamps will be in UTC * Vector data type extracted and saved as JSON in Postgres * Fixed Issues with Rollback **Known Issues**  * Timestamp with Timezone datatypes is not converted to UTC ## 2025/04/02 Version [4.1\_b702](https://bryteflow.com/release/singlestore/ingest/41-b702/ingest.zip) **Fixes**  * Fixed delta load error in PostgreSQL for masked column * Cleared out `.err` files from spool directory for MySQL * Added support for the `JSON` data type in MySQL * `DATETIME(3)` now created to retain milliseconds for MySQL to SingleStore ## 2025/03/05 Version [4.1\_b699](https://bryteflow.com/release/singlestore/ingest/41-b699/ingest.zip) **Features**  * Added support for the JDBC database source (Snowflake). Databases vary considerably and this driver has only been tested with Snowflake. JDBC database source extracts do not support a CDC mechanism and are full extracts only. * Enhancements to the PostgreSQL source driver * Array data type (inserted as JSON in SingleStore) * Custom data types * `JSON` and `JSONB` data types * Column names that are reserved words * Table names with mixed case **Fixes**  * Fixed MySQL delta extract errors **Known Issues**  * Masked columns are not supported for PostgreSQL * The `BYTEA` data type is not handled correctly on PostgreSQL * The `BIT(size)` data type is not handled correctly on MySQL * The `TINYINT`/`BIT` data type may show a mismatch on Sync Struct ## 2025/02/17 Version [4.1\_b671](https://bryteflow.com/release/singlestore/ingest/41-b671/ingest.zip) **Fixes**  * Fixed MySQL delta extract errors * Added support for PostgreSQL user-defined data types * Added support for PostgreSQL extract of tables with reserved-word columns ## 2025/01/31 Version [4.1\_b643](https://bryteflow.com/release/singlestore/ingest/41-b643/ingest.zip) **Features**  * Implemented a new licensing scheme which is based wholly on the destination SingleStore instance size * Added connection attributes to SingleStore connection * Added support for loading binary data. Flow now uses Avro format internally. * Mapped the Microsoft SQL Server type `DATETIME` to `DATETIME(6)` **Fixes**  * Sync Struct does not get false negatives when matching data types * Handled reserved words in column names * Fixed loading deltas for history tables **Known Issues**  * Delta extracts can sometimes fail on MySQL * Timezone-based timestamps do not take the time zone into account * Masked columns can fail on PostgreSQL * Binary data may be ignored on PostgreSQL * MySQL `BIT(n)` data types are not handled correctly * Rollback may not work as expected in some cases * Load message in the logs may show incorrect record counts ## 2025/01/21 Version [4.0.2\_b587](https://bryteflow.com/release/singlestore/ingest/402_b587/ingest.zip) **Features**  * Updated how reserved words are handled in column names, which can be done by either adding an underscore (default) or enclosing them in backticks * Increased the precision for `DATETIME` in the SQL Server input source ## 2024/12/24 Version [4.0.2\_b571](https://bryteflow.com/release/singlestore/ingest/402_b571/ingest.zip) **Features**  * Implemented data type mapping for all four sources * Primary key and shard key are automatically created on SingleStore * Removed extraneous sources from the drop-down list **Known Issues**  * Binary data not loaded * Timestamps with time zones are not converted to UTC * Masking columns may give load errors * Loading with history may fail in some cases ## 2024/12/03 Version [4.0.2\_b536](https://bryteflow.com/release/singlestore/ingest/402_b536/ingest.zip) **Features**  * Full extracts provide a detailed progress bar on the Dashboard * Default transfer type is now set to not keep history * PostgreSQL databases will now show tables in the `PUBLIC` schema **Fixes**  * Auto-selecting the primary key now works as expected * The Dashboard shows scheduled period for values under 1 minute * The Advanced tab for Destination now works as expected * Fixed the occasional null value error on startup * Changes in the underlying runtime metadata tables ## SingleStore XL Ingest ## 2026/09/15 Version [2.6.4\_41dd1b10](https://release.memsql.com/singlestoreflow/production/2.6.4-41dd1b10/xl-ingest.jar) ## Features * Added preview support for SingleStore-to-SingleStore XL full extract. * Added the skip-initial-extract table filter. * Added MariaDB source support and MySQL binary-type support. * Preserved configured special characters in destination names, including hyphens. ## Fixes * Improved security when loading database drivers. * Improved performance when processing very large cells. * Prevented configuration corruption when disk space is exhausted. ## 2026/09/02 Version [2.6.3\_8d19520d](https://release.memsql.com/singlestoreflow/production/2.6.3-8d19520d/xl-ingest.jar) ## Fixes * Fixed UUID slicing so rows with high UUID values are not omitted. ## 2026/08/27 Version [2.6.2\_20903633](https://release.memsql.com/singlestoreflow/production/2.6.2-20903633/xl-ingest.jar) ## Fixes * Improved destination column-name handling when spaces are converted to underscores, while keeping names stable across subsequent changes. * Improved recovery when the destination schema changes during XL onboarding. * Added support for SingleStore source tables without primary keys. * Fixed MySQL partitioned-table extract paths. ## 2026/07/23 Version [2.6.0-b9df345a](https://release.memsql.com/singlestoreflow/production/2.6.0-b9df345a/xl-ingest.jar) **Features**  * Improved large-table onboarding so a large table can be onboarded without halting ongoing CDC. * Added XL-Ingest table status summary with **Running** and **Scheduled** states. **Fixes**  * Fixed XL-Ingest handling for PostgreSQL BC, infinity, and -infinity temporal values. * Fixed XL-Ingest deletes for composite primary keys in SingleStore. ## 2026/04/30 Version [2.5.1\_38b8f072](https://release.memsql.com/singlestoreflow/production/2.5.1-38b8f072/xl-ingest.jar) **Features**  * Added support for transfers of tables without primary keys. * Extracts are automatically paused when available disk space falls below 50 GB. * When source or destination session count is set to 0, the sessions are stopped. * When a slice is transferred, a JSON line is logged providing comprehensive statistics for the transfer. **Fixes**  * Fixed out of memory issues that occurred when more than 2,000 slices were submitted. * Fixed handling of special characters including carriage return, new line, tab, and vertical bar. * The table name column in the UI is now resizable. * Fixed handling of invalid dates from Oracle source databases. ## 2026/04/02 Version [2.4.6\_7385e0f](https://github.com/memsql/singlestore-flow/actions/runs/23836780354/artifacts/6215354164) **Features**  * Added support for MySQL Fast Extractor (Currently in Preview) * Added support for `UUID` as a slicing column for Postgres * Added Multi-tenant support for Postgres ## 2026/02/19 Version [2.4.5\_4112eaa](https://bryteflow.com/release/singlestore/ixl/245-4112eaa/xlingest.zip) **Features**  * UI refreshed to reflect the SingleStore style * The `BOOL` / `BOOLEAN` type in MySQL and Postgres is now created as `TINYINT(1)` * `NUMERIC` in Postgres is now created as `DECIMAL(65,30)` **Fixes**  * Fixed errors on loading BIT data type ## 2025/12/12 Version [2.4.3\_7d351cf](https://bryteflow.com/release/singlestore/ixl/243-7d351cf/xlingest.zip) **Fixes**  * Implemented changes based on latest vulnerability testing ## 2025/03/05 Version [2.4\_b1257](https://bryteflow.com/release/singlestore/ixl/24_b1257/xlingest.zip) **Features**  * Added support for the JDBC database source (Snowflake) * Enhancements to the PostgreSQL source driver * UUID column can be used for slicing * Array data type (added to SingleStore as JSON) * Custom data types * `JSON` and `JSONB` data types * Column names that are reserved words * Table names with mixed case ## 2025/02/17 Version [2.4\_b1227](https://bryteflow.com/release/singlestore/ixl/24_b1227/xlingest.zip) **Fixes**  * Handled reserved-word column names ## 2025/01/31 Version [2.4\_b1224](https://bryteflow.com/release/singlestore/ixl/24_b1224/xlingest.zip) **Features**  * Implemented a new licensing scheme which is based wholly on the destination SingleStore instance size * Added connection attributes to SingleStore connection * Added support for loading binary data. Flow now uses Avro format internally. **Fixes**  * Added support for loading data for tables with masked columns **Known Issues**  * Timezone-based timestamps do not take the time zone into account * BLOB data is not extracted for Oracle ## 2025/01/21 Version [2.3\_b1178](https://bryteflow.com/release/singlestore/ixl/23_b1178/xlingest.zip) **Features**  * Updated how reserved words are handled in column names, which can be done by either adding an underscore (default) or enclosing them in backticks * Increased the precision for `DATETIME` in the SQL Server input source ## 2024/12/24 Version [2.3\_b1174](https://bryteflow.com/release/singlestore/ixl/23_b1174/xlingest.zip) **Features**  * Implemented data type mapping for all four sources **Known Issues**  * Binary data not loaded * Timestamps with time zones are not converted to UTC * Masking columns may give load errors ## ControlRoom ## 2025/05/06 Version [43-b8](https://bryteflow.com/release/singlestore/controlroom/43-b8/croom.zip) **Known Issues**  * Minor cosmetic issues on dashboard * No details are shown for an XL Ingest instance *** Modified at: September 18, 2026 Source: [/db/v9.0/release-notes/singlestore-flow-release-notes/](https://docs.singlestore.com/db/v9.0/release-notes/singlestore-flow-release-notes/) (An index of the documentation is available at /llms.txt)