Sourced from github.com/hashicorp/consul/api's changelog.

1.22.0 Enterprise (October 24, 2025)

SECURITY:

• connect: Upgrade Consul's bundled Envoy version to 1.35.3 and remove support for 1.31.10. This update also includes a fix to prevent Envoy (v1.35+) startup failures by only configuring the TLS transport socket when the CA bundle is present. [GH-22824]
• security: Adding warning when remote/local script checks are enabled without enabling ACL's [GH-22877]
• security: Improved validation of the Content-Length header in the Consul KV endpoint to prevent potential denial of service attacksCVE-2025-11374 [GH-22916]
• security: adding a maximum Content-Length on the event endpoint to fix denial-of-service (DoS) attacks. This resolves CVE-2025-11375. [GH-22836]
• security: breaking change - adding a key name validation on the key/value endpoint along side with the DisableKVKeyValidation config to disable/enable it to fix path traversal attacks. This resolves CVE-2025-11392. [GH-22850]

FEATURES:

• Added support to register a service in consul with multiple ports [GH-22769]
• agent: Added IsDualStack utility function to detect if the agent is configured for both IPv4 and IPv6 (dual-stack mode) based on its bind address retrieved from "agent/self" API. [GH-22741]
• install: Updated license information displayed during post-install
• ipv6: addtition of ip6tables changes for ipv6 and dual stack support [GH-22787]
• oidc: add client authentication using JWT assertion and PKCE. default PKCE is enabled. [GH-22732]

IMPROVEMENTS:

• security: Upgrade golang to 1.25.3. [GH-22926]
• ui: Fixes computed property override issues currently occurring and in some cases pre-emptively as this has been deprecated in ember v4 [GH-22947]
• ui: removes send action instances as part of https://deprecations.emberjs.com/id/ember-component-send-action/ [GH-22938]
• ui: replaced ember partials with components as an incremental step to upgrade to ember v4 [GH-22888]
• api: Added a new API (/v1/operator/utilization) to support enterprise API for Manual Snapshot Reporting [GH-22837]
• cmd: Added new subcommand consul operator utilization [-today-only] [-message] [-y] to generate a bundle with census utilization snapshot. Main flow is implemented in consul-enterprise http: Added a new API Handler for /v1/operator/utilization. Core functionality to be implemented in consul-enterprise agent: Always enabled census metrics collection with configurable option to export it to Hashicorp Reporting [GH-22843]
• cli: snapshot agent now supports authenticating to Azure Blob Storage using Azure Managed Service Identities (MSI). [GH-11171]
• command: connect envoy bootstrap defaults to 127.0.0.1 in IPv4-only environment and to ::1 in IPv6/DualStack environment. [GH-22763]
• connect: default upstream.local_bind_address to ::1 for IPv6 agent bind address [GH-22773]
• proxy: default proxy.local_service_address to ::1 for IPv6 agent bind address [GH-22772]
• ui: Improved accessibility features in the Consul UI to enhance usability for users with disabilities [GH-22770]
• ui: Replace yarn with pnpm for package management [GH-22790]
• ui: auth method config values were overflowing. This PR fixes the issue and adds word break for table elements with large content. [GH-22813]

BUG FIXES:

• ui: Allow FQDN to be displayed in the Consul web interface. [GH-22779]
• ui: fixes the issue where namespaces where disappearing and Welcome to Namespace screen showed up after tab switching [GH-22789]
• ui: fixes the issue where when doing deletes of multiple tokens or policies, the three dots on the right hand side stops responding after the first delete. [GH-22752]
• cmd: Fix consul operator utilization --help to show only available options without extra parameters. [GH-22912]

1.22.0 (October 24, 2025)

SECURITY:

• connect: Upgrade Consul's bundled Envoy version to 1.35.3 and remove support for 1.31.10. This update also includes a fix to prevent Envoy (v1.35+) startup failures by only configuring the TLS transport socket when the CA bundle is present. [GH-22824]
• security: Adding warning when remote/local script checks are enabled without enabling ACL's [GH-22877]
• security: Improved validation of the Content-Length header in the Consul KV endpoint to prevent potential denial of service attacksCVE-2025-11374 [GH-22916]

... (truncated)

• 1a47ec5 submodule version update
• 5d2aa72 post release changes (#22950) (#22980)
• c0922f9 Backport of [UI] replace direct use of transitionTo with router service's tra...
• f7c80bc Backport of upgrade: logrus to v1.9.3 into release/1.22.x (#22974)
• 5efc188 Backport of upgrade golang to latest patch into release/1.22.x (#22968)
• 36140dc Backport of upgrades ember-collection into release/1.22.x (#22966)
• 504ec51 [UI] deprecation this property fallback into 1.22.x(#22928) (#22964)
• 9562c06 Backport of [UI] Remove send Action deprecation into release/1.22.x (#22957)
• 70583a7 Backport of UI/Deprecation Computed property override into release/1.22.x (#2...
• 0b00c01 Backport of UI/deprecation ember views partial into release/1.22.x (#22952)
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