--- schema_version: "1" id: f498972d6d1f719ffc0cd2f6d1d710696b1ad910dc161fe725e5669b31a3286e title: DataWeave 2.11.0 Release Notes collection: mulesoft version: current locale: ja-jp portal_url: https://docs.salesforce.com/mulesoft/current/ja-jp/release-notes/dataweave/dataweave-2.11.0-release-notes.md canonical_url: https://docs.mulesoft.com/jp/release-notes/dataweave/dataweave-2.11.0-release-notes source_site: docs.mulesoft.com content_type: documentation content_hash: 12e1b0cdefc1cad21f97247f877a00fce253cef4df878c043c5d2cf4fd2b8201 description: MuleSoft Documentation Site latest: true --- # DataWeave 2.11.0 Release Notes Unresolved include directive in modules/ROOT/pages/dataweave/dataweave-2.11.0-release-notes.adoc - include::dataweave::partial$dataweave-intro.adoc\[\] For more detail, see [DataWeave Language](https://docs.mulesoft.com/dataweave/latest/). ## [](#july-2026)July 2026 DataWeave 2.11.5 is bundled with the Mule 4.11.6 release. The Mule patch release addresses these DataWeave issues:
Issue Resolution ID

Scope resolution errors no longer occur when importing Java classes with self-referential array properties.

W-22914494

AvroReader no longer causes memory leaks when processing Avro data in long-running flows.

W-22364385
For details about the Mule release and patch updates, see [Mule Runtime Engine 4.11.0 Release Notes](https://docs.mulesoft.com/jp/release-notes/mule-runtime/mule-4.11.0-release-notes). ## [](#june-2026)June 2026 DataWeave 2.11.4 is bundled with the Mule 4.11.5 release. The Mule patch release addresses these DataWeave issues:
Issue Resolution ID

StackOverflowError errors no longer occur when computing or converting type metadata for self-referencing recursive types.

W-21712344

The Java bean metadata cache no longer performs unnecessary evictions when processing Java POJOs. A new per-app Java bean cache can be enabled with the per_app_java_bean_cache compatibility flag.

W-22417507

The Java module bean introspection cache no longer causes memory leaks.

W-22419118
For details about the Mule release and patch updates, see [Mule Runtime Engine 4.11.0 Release Notes](https://docs.mulesoft.com/jp/release-notes/mule-runtime/mule-4.11.0-release-notes). ## [](#may-2026)May 2026 DataWeave 2.11.3 is bundled with the Mule 4.11.4 release. The Mule patch release addresses these DataWeave issues:
Issue Resolution ID

atBeginningOfDay now returns the midnight offset on DST days, instead of the input offset.

W-21614817
For details about the Mule release and patch updates, see [Mule Runtime Engine 4.11.0 Release Notes](https://docs.mulesoft.com/jp/release-notes/mule-runtime/mule-4.11.0-release-notes). ## [](#april-2026)April 2026 DataWeave 2.11.2 is bundled with the Mule 4.11.3 release. The Mule patch release addresses these DataWeave issues:
Issue Resolution ID

The Avro library is upgraded to 1.12.1. The Jackson Core library is upgraded to 2.21.1.

W-21415439

The Jakarta Mail library is upgraded to 2.1.5.

W-21320250

The range operator now returns null for invalid ranges.

W-21781423
For details about the Mule release and patch updates, see [Mule Runtime Engine 4.11.0 Release Notes](https://docs.mulesoft.com/jp/release-notes/mule-runtime/mule-4.11.0-release-notes). ## [](#march-2026)March 2026 DataWeave 2.11.1 is bundled with the Mule 4.11.2 release. The Mule patch release addresses these DataWeave issues:
Issue Resolution ID

The Array range selector operator no longer experiences performance degradation.

W-20220578

Concurrent access to KeyValuePairs inside lazy materialized objects no longer causes unexpected behavior.

W-21045501

The Mapping Editor API now supports attributes in Anypoint Code Builder.

W-20662336

Updating the expression model in the Mapping Editor API now works correctly.

W-20611263
For details about the Mule release and patch updates, see [Mule Runtime Engine 4.11.0 Release Notes](https://docs.mulesoft.com/jp/release-notes/mule-runtime/mule-4.11.0-release-notes). ## [](#february-4-2026)February 4, 2026 DataWeave 2.11.0 is bundled with the Mule 4.11.0 release. For details about the Mule release, see [Mule Runtime Engine 4.11.0 Release Notes](https://docs.mulesoft.com/jp/release-notes/mule-runtime/mule-4.11.0-release-notes). ### What’s New The 2.11.0 version of DataWeave introduces these new features and enhancements: Streaming and Memory Efficiency: - The [dw::core::Binaries::fromBase64](https://docs.mulesoft.com/dataweave/latest/dw-binaries-functions-frombase64) and [dw::core::Binaries::toBase64](https://docs.mulesoft.com/dataweave/latest/dw-binaries-functions-tobase64) functions now process input data in chunks instead of loading the entire String or Binary into memory. This improves scalability and helps prevent out-of-memory errors when working with large payloads. Lazy Variable Materialization: - [Variables](https://docs.mulesoft.com/dataweave/latest/dataweave-variables) are now materialized independently and only when needed. This reduces unnecessary memory usage and improves performance, especially in complex transformations with multiple variables. Enhanced try Function Behavior: - The [try](https://docs.mulesoft.com/dataweave/latest/dw-runtime-functions-try) function now performs eager materialization of its execution scope. This ensures that all expressions inside the try block are executed and that any errors are properly caught during execution. General improvements: - DataWeave libraries are now precompiled during service startup, reducing warm-up time and improving first-execution performance. - Memory usage during DataWeave parsing and compilation is now optimized, resulting in a smaller overall memory footprint for applications using DataWeave. - DataWeave incorporates new system properties. See [DataWeave System Properties](https://docs.mulesoft.com/dataweave/latest/dataweave-system-properties). ### Compatibility This table specifies which version of DataWeave is bundled with each Mule runtime engine release:
Mule Version DataWeave Version

4.13

2.13

4.12

2.12

4.11

2.11

4.10

2.10

4.9

2.9

4.8

2.8

4.7

2.7

4.6

2.6

4.5

2.5

4.4

2.4

4.3

2.3

4.2

2.2

4.1

2.1

3.9

1.2

3.8

1.1

3.7

1.0
### Fixed Issues The release addresses these DataWeave issues and incorporates all patch updates from the 2.10.0 DataWeave release through January 2026:
Issue Resolution ID

AST scope navigation now works correctly for cross-file references when using the Tooling API.

W-20212809

A specific overload for isEmpty on binaries is now available to prevent implicit coercion to other types.

W-20049958

Materialized Java values are now cached to allow multiple executions using the same value.

W-20091279

Semantic tokens are now supported in the Tooling API.

W-19846990

NullPointerException no longer occurs when handling annotation types.

W-19853000

LogLevel documentation is now included directly in the code.

W-17800393

The commons-beanutils library is upgraded.

W-3300013

Base64 encoding and decoding now support payloads larger than memory.

W-18575719

Eager materialization is now supported on values, enabling caching of all exceptions inside the try function.

W-19717874

Avro enum, map, union, and fixed types are now supported as top-level elements.

W-19596039

WeaveCompiler now allows precompiling mappings and modules without validation or type checking.

W-19667273

Type check errors are now correctly reported when resolving type checking on subgraphs.

W-19564697

Lazy loading of source files is now enabled during binary compilation, avoiding unnecessary memory usage.

W-19594703

Type inference now works correctly when using the -- operator to subtract a key from an object.

W-19595907

Warning and error messages now propagate correctly between compilation phases.

W-19386849

Base types are now used to validate accepted values, preventing premature materialization.

W-18943395

Optional types now propagate correctly through chains of value selectors.

W-19272070

The syntax version is now added to TypeGraph and WeaveTypeResolution.

W-19271992

The classloader resource resolver now resolves paths correctly on Windows systems.

W-19407283
### Upgrade This version of DataWeave is bundled with Mule. DataWeave upgrades take place through Mule. See [Mule Upgrades and Patch Updates](https://docs.mulesoft.com/jp/release-notes/mule-runtime/mule-esb#mule-upgrades). ## [](#see-also)See Also - [Salesforce Help](https://help.salesforce.com) - [MuleSoft Services](https://www.mulesoft.com/support-and-services) - [Troubleshooting a Failing DataWeave Script](https://docs.mulesoft.com/dataweave/latest/dataweave-troubleshoot) - [Known Issues](https://help.salesforce.com/s/issues)