Change history

Change log

Version	Date	Description
1.2.1-SNAPSHOT	11-May-2025	Features Joule cluster Joule cluster deployment support Ability to run Joule use cases across multiple nodes Joulectl CLI Command line tool to deploy and manage Joule Dynamic Deployment Suite of Joule management Rest APIs for use case deployment Joule can run in a standalone state or as a daemon Ability to restart using previous deployed state Joule management database (GuardianDB) Basic process telemetry recording Transports New slack transport for proactive alerting New email transport for critiacal notifications General Applied processing time constraints to use case execution Caching of last emitted event for next processing cycle reuse General state management to support advanced processing use cases New SDK processor and transport annotations Getting started project New refreshed suite of demos to addressed fast tracking developers on to the platform Dependencies Upgraded following Java 23 Graalvm DuckDB 1.1.3 Jackson 2.18.1 Apache arrow 18.1.0 Fixes and improvements New and improved documentation Fixed duplicate events being emitted from an analytic window processing Optimised and improved AVRO record handling Improved Kafka commit and ack logic Fixed missing CSV header Projection order honoured for CSV file output OpenAPI documentation improvements Memory optimisations and handling improvements Increased default internal base resources Support for key data types for stateful analytics Fixed major null bug for object vectorization Fixed MQTT missing initialization and serialization of string payloads Platform build target moved to JDK 23 Upgrade Gradle 8.12
1.2.0	01-July	Features Stream Joins Ability to join two streams using a simple join expression Inner and outer joins support State managed either through an time to live function or simply delete on join Enrichment Computed metrics can be added to events using the enrichment processor and emit projection Internal in-memory database can be queried for event enrichment Stateful computation support Metrics Import pre-computed metrics on process startup User defined metrics compaction query Enhancements Kafka Validated consumer message partition examples using multi Joule processing Analytics New normalization, scaling, and statistics functions added for ML support Stateful computation applied to computation context Simplified DSL to enable correct processor to be used Improvements and bug fixes to address execution of expressions and scripts Documentation improvements Miscellaneous Multi Joule processing environment scripts, used within banking examples groupby definition support across all processors Javascript module mjs support Upgrades DuckDB 1.0.0
1.1.0	25-Jan-2024	Features Predictive Processor JPMML model initialization using local file and remote S3 stores Dynamic model refresh using model update notifications Offline prediction auditing that enables explainability, drift monitoring and model retraining Avro support Ability to process avro records for inbound and outbound events Complex data types supported using custom mapping Schema registry support Minio S3 Transport OOTB multi cloud S3 support Publish and consume events and insights to/from hybrid hosted S3 buckets Drive pipeline processing using S3 bucket notifications Consumer supports following file formats: PARQUET, CSV, ARROW, ORC Keep reference data up to date using external systems Reference Data Apply external data within stream processing tasks In-memory reference data elements kept up-to-date using source change notifications Support for key value and S3 stores Reference data file loader utility Rest Consumer APIs File consuming endpoint that enable ease of integration to upstream systems Joule event consumer endpoint to provide the ability to chain Joule processors within a cloud environment File Watcher Consumer File watcher that consumes and processes target files Supported formats; Parquet, Json, CSV, ORC and Arrow IPC Enhancements Kafka Confluent schema registry support for outbound events Message partition support Confluent and RedPanda support Enricher processor Query optimisation SQL, OQL, and Key value enrichment support Transports Improved exception handling to fail on startup Strict ordering Apache Arrow Integrated and leveraged to process file efficiently and of various file formats Large file processing support Optimisations Processing optimisations that reduce both memory and CPU utilisation while increasing event throughput. StreamEvent smart shallow cloning logic to reduce overall memory footprint while providing key data isolation StreamEvent change tracking switch to reduce memory overhead Upgrades Javalin 5.6.3 Kafka 3.6.0 Avro 1.11.3 DuckDB 0.9.2 Bug Fixes StreamEventCSVDeserializer Fixed fields from holding only string values to correctly defined data types Allowed for custom date format to be provided StreamEventJSONDeserializer Can now read an array of Json StreamEvent objects JVM Configuration Additions Require ‘--add-opens=java.base/java.nio=ALL-UNNAMED’ to be added to the java CLI due to Apache Arrow requirements Applying the G1 GC regionalized and generational garbage collector to improved memory usage
1.1.0-SNAPSHOT	14-Sept 2023	Features Predictive Processor Model initialisation and dynamic model replacement using local file and remote S3 stores Avro support for inbound and outbound events. Complex data types supported using custom field mapping Minio multi-cloud S3 consumer Reference data support Enhancements MinIO implementation improvements to support large files and notifications Kafka schema registry support Apache Arrow integration to support PARQUET, CSV, ARROW, ORC file formats Better transport exception handling
1.0.4	18-May-2023	Features Feature engineering processor, Including plugins for binning, scaling and declarative analytics expressions Prediction and features auditing enabling explainability, drift monitoring and retraining In-Memory SQL Query API Websocket publisher Enhancements Improved deep cloning of StreamEvent Reorganisation of SDK Documentation Project template Bug fixes Window events failing to publish
1.0.4-SNAPSHOT	23-Apr-2023	Docker image generation, scripting fixes, StreamEvent deep copy, documentation updates.
1.0.3	01-Mar-2023	Documentation, metrics engine, Rest API, JDBC publisher, transport and processor updates and bug fixes
1.0.2	30-Jan-2023	Alpha release of metrics engine and rest API
1.0.1	13-May-2022	Bug fixes
1.0.0	05-Apr-2022	Initial release