--- schema_version: "1" id: 4f95bde8893d4d920a0218b7965fde6bfb26a1503f38ac5535762ebda57e3a31 title: Rate Limiting collection: mulesoft version: current locale: ja-jp portal_url: https://docs.salesforce.com/mulesoft/current/ja-jp/release-notes/policies/rate-limit-policy-release-notes.md canonical_url: https://docs.mulesoft.com/jp/release-notes/policies/rate-limit-policy-release-notes source_site: docs.mulesoft.com content_type: documentation content_hash: ce2c7cf76f7c9730a1cca18fe43f22398a76807ba9942921974003bea65fa17c description: MuleSoft Documentation Site latest: true --- # Rate Limiting ## [](#1-4-2)1.4.2 **October 1, 2026** ### What’s New - This release updates policy metadata only. There’s no functional change. ## [](#1-4-0)1.4.0 **September 28, 2022** ### [](#new-features-and-enhancements)New Features and Enhancements - The policy definition and policy implementation file are now separate. This enables stronger validations for policy configuration parameters. ## [](#1-3-7)1.3.7 **September 29, 2022** ### [](#minimum-mule-version)Minimum Mule Version **Mule 4.1.0** ### [](#fixed-issues)Fixed issues - Nodes no longer become unresponsive on a cluster scenario when persistence is enabled. ## [](#0-9-1)0.9.1 **June 27, 2022** ### [](#fixed-issues-2)Fixed Issues - Rate limit window is no longer limited to 24 days. ## [](#0-9-0)0.9.0 **May 17, 2022** ### [](#new-features-and-enhancements-2)New Features and Enhancements - Flex support for the Policy. ## [](#1-3-6)1.3.6 **April 1, 2022** ### [](#minimum-mule-version-2)Minimum Mule Version **Mule 4.1.0** ### [](#fixed-issues-3)Fixed issues - Quota is now reset when editing tier configuration. ## [](#1-3-5)1.3.5 **June 16, 2021** ### [](#minimum-mule-version-3)Minimum Mule Version **Mule 4.1.0** ### [](#new-features-and-enhancements-3)New Features and Enhancements - Improved error handling for connectivity issues in clusters. - Improved logging for errors. ## [](#1-3-4)1.3.4 **Apr 30, 2020** ### [](#minimum-mule-version-4)Minimum Mule Version **Mule 4.1.0** ### [](#new-features-and-enhancements-4)New Features and Enhancements - Error handling responses revised for WSDL APIs to be compliant with SOAP 1.1 and 1.2. - Performance improvements are introduced to the header manipulation engine. ### [](#fixed-issues-4)Fixed issues - After a policy was applied, HTTP headers did not follow the RFC 2616 requirement of case-sensitivity: [https://www.w3.org/Protocols/rfc2616/rfc2616-sec4.html#sec4.2](https://www.w3.org/Protocols/rfc2616/rfc2616-sec4.html#sec4.2). - Improved resiliency on cluster scenarios. - Improved logging information in locking, object store, and distributed mechanisms for better troubleshooting. - Several performance improvements are introduced in the algorithm of the Rate Limiting policy. ## [](#1-3-3)1.3.3 **November 26, 2019** ### [](#minimum-mule-version-5)Minimum Mule Version **Mule 4.1.0** ### [](#fixed-issues-5)Fixed Issues - Improved the algorithm to allow executing with small `throttling.distribution_percentage` values - Removed the warning message (WARN) in the application log when multiple asynchronous quota requests are executed in a distributed scenario - Fixed the `NullPointerException` error on the persistence scheduler when a distributed quota is temporarily unavailable ## [](#1-3-2)1.3.2 **November 13, 2019** ### [](#minimum-mule-version-6)Minimum Mule Version **Mule 4.1.0** ### [](#fixed-issues-6)Fixed Issues - Improved resiliency when the throttling algorithm is created under heavy load in clustering scenarios - Optimized the threading usage of the algorithm - Fixed the `NullPointerException` error on the persistence scheduler when counters are persisted due to a sudden surge in requests ## [](#1-3-1)1.3.1 **July 12, 2019** ### [](#minimum-mule-version-7)Minimum Mule Version **Mule 4.1.0** ### [](#new-features-and-enhancements-5)New Features and Enhancements - Several performance improvements were introduced in this release. ## [](#1-3-0)1.3.0 **April 26, 2018** ### [](#minimum-mule-version-8)Minimum Mule Version **Mule 4.1.0** ### [](#new-features-and-enhancements-6)New Features and Enhancements - Unless explicitly configured, by checking the "Expose headers" option, the policy header will not be propagated or returned. The default configuration is modified to support this behaviour. - Several performance improvements were introduced in this release. ### [](#fixed-issues-7)Fixed Issues - The persistence scheduler was losing quota in a Mule Cluster when the node’s clocks were out-of-sync. This error is now resolved. ## [](#1-2-3)1.2.3 **February 14, 2019** ### [](#minimum-mule-version-9)Minimum Mule Version **Mule 4.1.0** ### [](#fixed-issues-8)Fixed Issues - Fixed `NullPointerException` thrown when disposing policy in a Mule Cluster. ## [](#1-2-2)1.2.2 **October 17, 2018** ### [](#minimum-mule-version-10)Minimum Mule Version **Mule 4.1.0** ### [](#fixed-issues-9)Fixed Issues - Resolved the WSDL error response issue. - An object store error occurred when hitting the API concurrently. This error is now resolved. - Optimized throttling connector performance. - An `ExpressionRuntimeException` error occurred when a WSDL proxy received an empty payload, or an invalid XML. This error is now resolved. ## [](#1-2-1)1.2.1 **June 25, 2018** ### [](#minimum-mule-version-11)Minimum Mule Version **Mule 4.1.0** ### [](#new-features-and-enhancements-7)New Features and Enhancements - Added 'violationCategory' in the YAML configuration file for Feedback Loop. ### [](#fixed-issues-10)Fixed Issues - If an extension set authentication using an Authentication object containing null properties, a `NullPointerException` error occurred. This error is now resolved. ## [](#1-2-0)1.2.0 **March 22, 2018** ### [](#minimum-mule-version-12)Minimum Mule Version **Mule 4.1.0** ### [](#new-features-and-enhancements-8)New Features and Enhancements - Parameterized throttling algorithm introduced for Mule 4. - Migrated pluggable Hazelcast to 4.x. ### [](#fixed-issues-11)Fixed Issues - The Rate Limiting policy was rejected from scheduler during high network traffic. This error is now resolved. ## [](#1-1-0)1.1.0 **January 25, 2018** ### [](#minimum-mule-version-13)Minimum Mule Version **4.1.0** ### [](#new-features-and-enhancements-9)New Features and Enhancements - Updated `WWW-Authenticate` header value from `mule-real` to `Client-ID-Enforcement`. - Reduced error-handling verbosity in templates. ### [](#fixed-issues-12)Fixed Issues - An `ExpressionRuntimeException` error occurred when a WSDL proxy received an empty payload, or an invalid XML. This error is now resolved. ## [](#1-0-0)1.0.0 **November 14, 2017** ### [](#minimum-mule-version-14)Minimum Mule Version **4.0.0** ## [](#see-also)See Also - [Rate Limit for Mule 4](https://docs.mulesoft.com/gateway/latest/policies-included-rate-limiting) - [Known Issues](https://help.salesforce.com/s/issues)