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title: API Manager Policies Release Notes
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# API Manager Policies Release Notes

Release notes for API Manager Policies include information about changes, improvements, and resolved issues in each released policy version.

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<p>The following release notes provide information about the policy’s definition. To find information about the policy’s implementation, see the implementation release notes in API Manager.</p>
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<p>To learn more about managing policy implementation versions, see <a href="https://docs.mulesoft.com/jp/exchange/manage-versions#update-policy-implementations" class="xref page">Update Policy Implementations</a>.</p>
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## [](#release-notes-for-mule-4-policies)Release Notes for Mule 4 Policies

- [API Security-Identification Header](https://docs.mulesoft.com/jp/release-notes/policies/api-security-identification-header-policy-release-notes)
- [Basic Authentication - LDAP](https://docs.mulesoft.com/jp/release-notes/policies/ldap-policy-release-notes)
- [Basic Authentication - Simple](https://docs.mulesoft.com/jp/release-notes/policies/http-basic-auth-release-notes)
- [Client ID Enforcement](https://docs.mulesoft.com/jp/release-notes/policies/client-id-enforcement-release-notes)
- [Cross-Origin Resource Sharing](https://docs.mulesoft.com/jp/release-notes/policies/cors-policy-release-notes)
- [Detokenization](https://docs.mulesoft.com/jp/release-notes/policies/detokenization-release-notes)
- [Header Injection](https://docs.mulesoft.com/jp/release-notes/policies/header-injection-release-notes)
- [Header Removal](https://docs.mulesoft.com/jp/release-notes/policies/header-removal-release-notes)
- [HTTP Caching](https://docs.mulesoft.com/jp/release-notes/policies/http-caching-release-notes)
- [IP Allowlist](https://docs.mulesoft.com/jp/release-notes/policies/ip-allowlist-policy-release-notes)
- [IP Blocklist](https://docs.mulesoft.com/jp/release-notes/policies/ip-blocklist-policy-release-notes)
- [Legacy IP Allowlist](https://docs.mulesoft.com/jp/release-notes/policies/ip-whitelist-policy-release-notes)
- [Legacy IP Blocklist](https://docs.mulesoft.com/jp/release-notes/policies/legacy-ip-blocklist-policy-release-notes)
- [JSON Threat Protection](https://docs.mulesoft.com/jp/release-notes/policies/json-threat-protection-release-notes)
- [JWT Validation](https://docs.mulesoft.com/jp/release-notes/policies/jwt-validation-release-notes)
- [Message Logging](https://docs.mulesoft.com/jp/release-notes/policies/message-logging-release-notes)
- [OAuth 2.0 Access Token Enforcement Using Mule OAuth Provider](https://docs.mulesoft.com/jp/release-notes/policies/mule-oauth-token-enforcement-policy-release-notes)
- [OpenAM Access Token Enforcement](https://docs.mulesoft.com/jp/release-notes/policies/openam-oauth-token-enforcement-policy-release-notes)
- [OpenID Connect Access Token Enforcement](https://docs.mulesoft.com/jp/release-notes/policies/openid-connect-oauth-token-enforcement-policy-release-notes)
- [PingFederate Access Token Enforcement](https://docs.mulesoft.com/jp/release-notes/policies/pingfederate-oauth-token-enforcement-policy-release-notes)
- [Rate Limiting](https://docs.mulesoft.com/jp/release-notes/policies/rate-limit-policy-release-notes)
- [Rate Limiting - SLA-based](https://docs.mulesoft.com/jp/release-notes/policies/rate-limit-sla-release-notes)
- [Spike Control](https://docs.mulesoft.com/jp/release-notes/policies/spike-control-release-notes)
- [Tokenization](https://docs.mulesoft.com/jp/release-notes/policies/tokenization-release-notes)
- [XML Threat Protection](https://docs.mulesoft.com/jp/release-notes/policies/xml-threat-protection-release-notes)

## [](#see-also)See Also

- [Policies in Mule 4](https://docs.mulesoft.com/jp/mule-gateway/policies-included-overview)
- [Known Issues](https://help.salesforce.com/s/issues)