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<button id=search-close title="Cancel search" type=reset aria-label="Cancel search"><svg class="icon"><use xlink:href="/v1.2/img/icons.svg#cancel-x"/></svg></button></form></nav></header><main class=primary><div id=sidebar-container class="sidebar-container sidebar-offcanvas"><nav id=sidebar aria-label="Section Navigation"><div class=directory><div class=card><div id=header0 class=header title="Get a bit more in-depth info about the Istio project."><svg class="icon"><use xlink:href="/v1.2/img/icons.svg#about"/></svg>About Istio</div><div class="body default" aria-labelledby=header0><ul role=tree aria-expanded=true aria-labelledby=header0><li role=treeitem aria-label="Release Notes"><button class=show aria-hidden=true></button><a title="Description of features and improvements for every Istio release." href=/v1.2/about/notes/>Release Notes</a><ul role=group aria-expanded=true><li role=none><a role=treeitem href=/v1.2/about/notes/1.1.14/>Istio 1.1.14</a></li><li role=none><a role=treeitem href=/v1.2/about/notes/1.2.5/>Istio 1.2.5</a></li><li role=none><a role=treeitem href=/v1.2/about/notes/1.1.13/>Istio 1.1.13</a></li><li role=none><a role=treeitem href=/v1.2/about/notes/1.2.4/>Istio 1.2.4</a></li><li role=none><a role=treeitem href=/v1.2/about/notes/1.1.12/>Istio 1.1.12</a></li><li role=none><a role=treeitem href=/v1.2/about/notes/1.2.3/>Istio 1.2.3</a></li><li role=none><a role=treeitem href=/v1.2/about/notes/1.1.11/>Istio 1.1.11</a></li><li role=none><a role=treeitem href=/v1.2/about/notes/1.0.9/>Istio 1.0.9</a></li><li role=none><a role=treeitem href=/v1.2/about/notes/1.1.10/>Istio 1.1.10</a></li><li role=none><a role=treeitem href=/v1.2/about/notes/1.2.2/>Istio 1.2.2</a></li><li role=none><a role=treeitem href=/v1.2/about/notes/1.2.1/>Istio 1.2.1</a></li><li role=none><span role=treeitem class=current>Istio 1.2</span></li><li role=none><a role=treeitem href=/v1.2/about/notes/1.1.9/>Istio 1.1.9</a></li><li role=none><a role=treeitem 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interact with the Istio community." href=/v1.2/about/community/join/>Getting Involved</a></li><li role=none><a role=treeitem title="Who's building stuff around Istio." href=/v1.2/about/community/partners/>Partners</a></li><li role=none><a role=treeitem title="Who's using Istio out there." href=/v1.2/about/community/customers/>Istio in Action</a></li></ul></li><li role=none><a role=treeitem title="What to do if you find a bug." href=/v1.2/about/bugs/>Reporting Bugs</a></li><li role=none><a role=treeitem title="How we handle security vulnerabilities." href=/v1.2/about/security-vulnerabilities/>Security Vulnerabilities</a></li><li role=none><a role=treeitem title="Official Istio resources for digital and printed materials." href=/v1.2/about/media-resources/>Media Resources</a></li><li role=treeitem aria-label="Contributing to the Docs"><button aria-hidden=true></button><a title="Learn how to contribute to improve and expand the Istio documentation." href=/v1.2/about/contribute/>Contributing to the Docs</a><ul role=group aria-expanded=false class=leaf-section><li role=none><a role=treeitem title="Explains the mechanics of creating and maintaining documentation pages." href=/v1.2/about/contribute/creating-and-editing-pages/>Creating and Editing Pages</a></li><li role=none><a role=treeitem title="Explains the dos and donts of writing Istio documentation." href=/v1.2/about/contribute/style-guide/>Style Guide</a></li><li role=none><a role=treeitem title="Shows you how to use GitHub to work on Istio documentation." href=/v1.2/about/contribute/github/>Working with GitHub</a></li><li role=none><a role=treeitem title="Provides assets and instructions to create diagrams for the Istio documentation." href=/v1.2/about/contribute/diagrams/>Diagram Creation Guidelines</a></li></ul></li></ul></div></div></div></nav></div><div class=article-container><button tabindex=-1 id=sidebar-toggler title="Toggle the navigation bar"><svg class="icon"><use xlink:href="/v1.2/img/icons.svg#pull"/></svg></button><nav aria-label=Breadcrumb><ol><li><a href=/v1.2/ title="Connect, secure, control, and observe services.">Istio</a></li><li><a href=/v1.2/about/ title="Get a bit more in-depth info about the Istio project.">About</a></li><li><a href=/v1.2/about/notes/ title="Description of features and improvements for every Istio release.">Release Notes</a></li><li>Istio 1.2</li></ol></nav><article aria-labelledby=title><div class=title-area><i class=title-icon><svg class="icon"><use xlink:href="/v1.2/img/icons.svg#notes"/></svg></i><div><h1 id=title>Istio 1.2</h1><p class=byline><span><svg class="icon"><use xlink:href="/v1.2/img/icons.svg#calendar"/></svg><span> </span>June 18, 2019</span><span> | </span><span title="724 words"><svg class="icon"><use xlink:href="/v1.2/img/icons.svg#clock"/></svg><span> </span>4 minute read</span></p></div></div><nav class=toc-inlined aria-label="Table of Contents"><div><hr><ol><li role=none aria-label=General><a href=#general>General</a><li role=none aria-label="Traffic Management"><a href=#traffic-management>Traffic Management</a><li role=none aria-label=Security><a href=#security>Security</a><li role=none aria-label=Telemetry><a href=#telemetry>Telemetry</a><li role=none aria-label=Policy><a href=#policy>Policy</a><li role=none aria-label="Configuration Management"><a href=#configuration-management>Configuration Management</a><li role=none aria-label="Installation and Upgrade"><a href=#installation-and-upgrade>Installation and Upgrade</a><li role=none aria-label="istioctl and kubectl"><a href=#istioctl-and-kubectl><code>istioctl</code> and <code>kubectl</code></a><li role=none aria-label=Others><a href=#others>Others</a></ol><hr></div></nav><p>We’re proud to release Istio 1.2! We are excited that we are back with a 3 month release cadence!</p><p>We’ve spent the last 3 months making some significant improvements to the overall product,
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with fixes and features from the Istio community. Special thanks to all of our end-users for
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providing feedback, feature requests, and testing the release candidates at various scales.</p><p>This release note describes what’s different between Istio 1.1.9 and Istio 1.2.</p><div class=call-to-action><button class="btn update-notice" data-title="Update Notice" data-downloadhref=https://github.com/istio/istio/releases/tag/1.2.0 data-updateadvice="Before you download 1.2, you should know that there's a newer patch release with the latest bug fixes and perf improvements." data-updatebutton="LEARN ABOUT ISTIO 1.2.5" data-updatehref=/v1.2/about/notes/1.2.5>
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DOWNLOAD 1.2</button>
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<a class=btn href=https://istio.io/docs>1.2 DOCS</a></div><h2 id=general>General</h2><ul><li><strong>Added</strong> <code>traffic.sidecar.istio.io/includeInboundPorts</code> annotation to eliminate the need for service owner to declare <code>containerPort</code> in the deployment yaml file. This will become the default in a future release.</li><li><strong>Added</strong> IPv6 experimental support for Kubernetes clusters.</li></ul><h2 id=traffic-management>Traffic Management</h2><ul><li><strong>Improved</strong> <a href=/v1.2/docs/ops/traffic-management/locality-load-balancing/>locality based routing</a> in multicluster environments.</li><li><strong>Improved</strong> outbound traffic policy in <a href=/v1.2/docs/reference/config/installation-options/#global-options><code>ALLOW_ANY</code> mode</a>. Traffic for unknown HTTP/HTTPS hosts on an existing port will be <a href=/v1.2/docs/tasks/traffic-management/egress/egress-control/#envoy-passthrough-to-external-services>forwarded as is</a>. Unknown traffic will be logged in Envoy access logs.</li><li><strong>Added</strong> support for setting HTTP idle timeouts to upstream services.</li><li><strong>Improved</strong> Sidecar support for <a href=/v1.2/docs/reference/config/networking/v1alpha3/sidecar/#CaptureMode>NONE mode</a> (without iptables) .</li><li><strong>Added</strong> ability to configure the <a href=/v1.2/docs/reference/config/installation-options/#global-options>DNS refresh rate</a> for sidecar Envoys, to reduce the load on the DNS servers.</li><li><strong>Graduated</strong> <a href=/v1.2/docs/reference/config/networking/v1alpha3/sidecar/>Sidecar API</a> from Alpha to Alpha API and Beta runtime.</li></ul><h2 id=security>Security</h2><ul><li><strong>Improved</strong> extend the default lifetime of self-signed Citadel root certificates to 10 years.</li><li><strong>Added</strong> Kubernetes health check prober rewrite per deployment via <code>sidecar.istio.io/rewriteAppHTTPProbers: "true"</code> in the <code>PodSpec</code> <a href=/v1.2/docs/ops/setup/app-health-check/#use-annotations-on-pod>annotation</a>.</li><li><strong>Added</strong> support for configuring the secret paths for Istio mutual TLS certificates. Refer <a href=https://github.com/istio/istio/issues/11984>here</a> for more details.</li><li><strong>Added</strong> support for <a href=https://en.wikipedia.org/wiki/PKCS_8>PKCS 8</a> private keys for workloads, enabled by the flag <code>pkcs8-keys</code> on Citadel.</li><li><strong>Improved</strong> JWT public key fetching logic to be more resilient to network failure.</li><li><strong>Fixed</strong> <a href=https://tools.ietf.org/html/rfc5280#section-4.2.1.6>SAN</a> field in workload certificates is set as <code>critical</code>. This fixes the issue that some custom certificate verifiers cannot verify Istio certificates.</li><li><strong>Fixed</strong> mutual TLS probe rewrite for HTTPS probes.</li><li><strong>Graduated</strong> <a href=/v1.2/docs/reference/config/networking/v1alpha3/gateway/>SNI with multiple certificates support at ingress gateway</a> from Alpha to Stable.</li><li><strong>Graduated</strong> <a href=/v1.2/docs/tasks/traffic-management/ingress/secure-ingress-sds/>certification management on Ingress Gateway</a> from Alpha to Beta.</li></ul><h2 id=telemetry>Telemetry</h2><ul><li><strong>Added</strong> Full support for control over Envoy stats generation, based on stats prefixes, suffixes, and regular expressions through the use of <a href=/v1.2/docs/reference/commands/pilot-agent/#annotations>annotations</a>.</li><li><strong>Changed</strong> Prometheus generated traffic is excluded from metrics.</li><li><strong>Added</strong> support for sending traces to Datadog.</li><li><strong>Graduated</strong> <a href=/v1.2/docs/tasks/telemetry/distributed-tracing/>distributed tracing</a> from Beta to Stable.</li></ul><h2 id=policy>Policy</h2><ul><li><strong>Fixed</strong> <a href=https://github.com/istio/istio/issues/13868>Mixer based</a>TCP Policy enforcement.</li><li><strong>Graduated</strong> <a href=/v1.2/docs/reference/config/authorization/istio.rbac.v1alpha1/>Authorization (RBAC)</a> from Alpha to Alpha API and Beta runtime.</li></ul><h2 id=configuration-management>Configuration Management</h2><ul><li><strong>Improved</strong> validation of Policy & Telemetry CRDs.</li><li><strong>Graduated</strong> basic configuration resource validation from Alpha to Beta.</li></ul><h2 id=installation-and-upgrade>Installation and Upgrade</h2><ul><li><strong>Updated</strong> default proxy memory limit size(<code>global.proxy.resources.limits.memory</code>) from <code>128Mi</code> to <code>1024Mi</code> to ensure proxy has sufficient memory.</li><li><strong>Added</strong> pod <a href=https://kubernetes.io/docs/concepts/configuration/assign-pod-node/#affinity-and-anti-affinity>anti-affinity</a> and <a href=https://kubernetes.io/docs/concepts/configuration/taint-and-toleration/>toleration</a> support to all of our control plane components.</li><li><strong>Added</strong> <code>sidecarInjectorWebhook.neverInjectSelector</code> and <code>sidecarInjectorWebhook.alwaysInjectSelector</code> to allow users to further refine whether workloads should have sidecar automatically injected or not, based on label selectors.</li><li><strong>Added</strong> <code>global.logging.level</code> and <code>global.proxy.logLevel</code> to allow users to easily configure logs for control plane and data plane components globally.</li><li><strong>Added</strong> support to configure the Datadog location via <a href=/v1.2/docs/reference/config/installation-options/#global-options><code>global.tracer.datadog.address</code></a>.</li><li><strong>Removed</strong> Previously <a href=https://discuss.istio.io/t/deprecation-notice-custom-mixer-adapter-crds/2055>deprecated</a> Adapter and Template CRDs are disabled by default. Use <code>mixer.templates.useTemplateCRDs=true</code> and <code>mixer.adapters.useAdapterCRDs=true</code> install options to re-enable them.</li></ul><p>Refer to the <a href=/v1.2/docs/reference/config/installation-options-changes/>installation option change page</a> to view the complete list of changes.</p><h2 id=istioctl-and-kubectl><code>istioctl</code> and <code>kubectl</code></h2><ul><li><strong>Graduated</strong> <code>istioctl verify-install</code> out of experimental.</li><li><strong>Improved</strong> <code>istioctl verify-install</code> to validate if a given Kubernetes environment meets Istio’s prerequisites.</li><li><strong>Added</strong> auto-completion support to <code>istioctl</code>.</li><li><strong>Added</strong> <code>istioctl experimental dashboard</code> to allow users to easily open the web UI of any Istio addons.</li><li><strong>Added</strong> <code>istioctl x</code> alias to conveniently run <code>istioctl experimental</code> command.</li><li><strong>Improved</strong> <code>istioctl version</code> to report both Istio control plane and <code>istioctl</code> version info by default.</li><li><strong>Improved</strong> <code>istioctl validate</code> to validate Mixer configuration and supports deep validation with referential integrity.</li></ul><h2 id=others>Others</h2><ul><li><strong>Added</strong> <a href=/v1.2/docs/setup/kubernetes/additional-setup/cni/>Istio CNI support</a> to setup sidecar network redirection and remove the use of <code>istio-init</code> containers requiring <code>NET_ADMIN</code> capability.</li><li><strong>Added</strong> a new experimental <a href=https://github.com/istio/installer/wiki>‘a-la-carte’ Istio installer</a> to enable users to install and upgrade Istio with desired isolation and security.</li><li><strong>Added</strong> the <a href=https://github.com/istio-ecosystem/dns-discovery>DNS-discovery</a> and <a href=https://github.com/istio-ecosystem/iter8>iter8</a> in <a href=https://github.com/istio-ecosystem>Istio ecosystem</a>.</li><li><strong>Added</strong> <a href=https://docs.google.com/document/d/1M-qqBMNbhbAxl3S_8qQfaeOLAiRqSBpSgfWebFBRuu8/edit>environment variable and configuration file support</a> for configuring Galley, in addition to command-line flags.</li><li><strong>Added</strong> <a href=/v1.2/docs/ops/controlz/>ControlZ</a> support to visualize the state of the MCP Server in Galley.</li><li><strong>Added</strong> the <a href=/v1.2/docs/reference/commands/galley/#galley-server><code>enableServiceDiscovery</code> command-line flag</a> to control the service discovery module in Galley.</li><li><strong>Added</strong> <code>InitialWindowSize</code> and <code>InitialConnWindowSize</code> parameters to Galley and Pilot to allow fine-tuning of MCP (gRPC) connection settings.</li><li><strong>Graduated</strong> configuration processing with Galley from Alpha to Beta.</li></ul></article><nav class=pagenav><div class=left><a href=/v1.2/about/notes/1.2.1/><svg class="icon"><use xlink:href="/v1.2/img/icons.svg#left-arrow"/></svg>Istio 1.2.1</a></div><div class=right><a href=/v1.2/about/notes/1.1.9/>Istio 1.1.9<svg class="icon"><use xlink:href="/v1.2/img/icons.svg#right-arrow"/></svg></a></div></nav><div id=endnotes-container aria-hidden=true><h2>Links</h2><ol id=endnotes></ol></div></div><div class=toc-container><nav class=toc aria-label="Table of Contents"><div id=toc><ol><li role=none aria-label=General><a href=#general>General</a><li role=none aria-label="Traffic Management"><a href=#traffic-management>Traffic Management</a><li role=none aria-label=Security><a href=#security>Security</a><li role=none aria-label=Telemetry><a href=#telemetry>Telemetry</a><li role=none aria-label=Policy><a href=#policy>Policy</a><li role=none aria-label="Configuration Management"><a href=#configuration-management>Configuration Management</a><li role=none aria-label="Installation and Upgrade"><a href=#installation-and-upgrade>Installation and Upgrade</a><li role=none aria-label="istioctl and kubectl"><a href=#istioctl-and-kubectl><code>istioctl</code> and <code>kubectl</code></a><li role=none aria-label=Others><a href=#others>Others</a></ol></div></nav></div></main><footer><div class=user-links><a class=channel title="Go download Istio 1.2.5 now" href=https://github.com/istio/istio/releases/tag/1.2.5 aria-label="Download Istio"><span>download</span><svg class="icon"><use xlink:href="/v1.2/img/icons.svg#download"/></svg>
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