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This page contains release notes for features and updates to Cloud Router.
You can see the latest product updates for all of Google Cloud on the
Google Cloud page, browse and filter all release notes in the
Google Cloud console,
or programmatically access release notes in
BigQuery.
To get the latest product updates delivered to you, add the URL of this page to your
feed
reader, or add the
feed URL directly.
Cloud Router supports standard best path selection mode in Preview, which offers support for consistent AS path-based routing and more control over how BGP prefixes are ranked in your VPC networks. For more information, see Best path selection modes.
Cloud Router support for IPv6 BGP sessions is in Public Preview. For more information, see BGP peering IP addresses.
July 20, 2023
The Cloud Router custom learned routes feature is Generally Available (GA). For more information, see Custom learned routes.
May 10, 2023
The Cloud Router custom learned routes feature is in Preview. This feature lets you configure a Border Gateway Protocol (BGP) session to include learned routes that you manually specify. Cloud Router then behaves as if it learned the routes from the BGP peer.
Custom learned routes can be helpful if you want to avoid the limitations of static routes. For example:
Static routes can't detect a loss of reachability in the next hop of a route. In contrast, custom learned routes can detect a loss of reachability, and they react accordingly to avoid dropping traffic without notification.
Static routes do not support using HA VPN tunnels or Cloud Interconnect VLAN attachments as next hops. Custom learned routes do.
The Cloud Router BGP MD5 authentication feature is Generally Available (GA). For more information, see Use MD5 authentication.
September 20, 2022
You can now use the Google Cloud Console to configure MD5 authentication for BGP sessions. The MD5 authentication feature is available in Preview. For more information, see Use MD5 authentication.
May 10, 2022
Cloud Router now supports MD5 authentication of BGP sessions. This feature is available in preview. For more information, see Use MD5 authentication.
The Cloud Router documentation now includes a page that describes the possible values for a BGP session's state. Also, the documentation about diagnostic messages and session states related to Bidirectional Forwarding Detection (BFD) has moved from Troubleshooting to a new page. BFD is in preview and is covered by the Pre-GA Offerings Terms of the Google Cloud Terms of Service.
Setting a VPC network's dynamic routing mode is is in Beta. The VPC dynamic routing mode determines whether Cloud Router advertises and propagates routes globally or regionally.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-28 UTC."],[],[],null,["# Cloud Router release notes\n\nThis page contains release notes for features and updates to Cloud Router.\n\n\u003cbr /\u003e\n\n\nYou can see the latest product updates for all of Google Cloud on the\n[Google Cloud](/release-notes) page, browse and filter all release notes in the\n[Google Cloud console](https://console.cloud.google.com/release-notes),\nor programmatically access release notes in\n[BigQuery](https://console.cloud.google.com/bigquery?p=bigquery-public-data&d=google_cloud_release_notes&t=release_notes&page=table).\n\nTo get the latest product updates delivered to you, add the URL of this page to your\n[feed\nreader](https://wikipedia.org/wiki/Comparison_of_feed_aggregators), or add the\n[feed URL](https://cloud.google.com/feeds/cloudrouter-release-notes.xml) directly.\n\nMarch 06, 2025\n--------------\n\nCloud Router support for BGP route policies is now [generally available](https://cloud.google.com/products#product-launch-stages). For more information, see [BGP route policies overview](https://cloud.google.com/network-connectivity/docs/router/concepts/bgp-route-policies-overview).\n\nDecember 17, 2024\n-----------------\n\nStandard best path selection mode is now [generally available](https://cloud.google.com/products#product-launch-stages). For more information, see [Best path selection modes](https://cloud.google.com/network-connectivity/docs/router/concepts/learned-routes#best-path-selection-modes).\n\nAugust 27, 2024\n---------------\n\nCloud Router supports standard best path selection mode in [Preview](https://cloud.google.com/products#preview), which offers support for consistent AS path-based routing and more control over how BGP prefixes are ranked in your VPC networks. For more information, see [Best path selection modes](https://cloud.google.com/network-connectivity/docs/router/concepts/learned-routes#best-path-selection-modes).\n\nMay 21, 2024\n------------\n\nCloud Router supports BGP route policies in [Public Preview](https://cloud.google.com/products#product-launch-stages). For more information, see [BGP route policies overview](https://cloud.google.com/network-connectivity/docs/router/concepts/bgp-route-policies-overview). \nCloud Router support for IPv6 BGP sessions is [generally available](https://cloud.google.com/products#product-launch-stages). For more information, see [BGP peering IP addresses](https://cloud.google.com/network-connectivity/docs/router/concepts/overview#bgp-ips).\n\nDecember 06, 2023\n-----------------\n\nCloud Router support for IPv6 BGP sessions is in Public Preview. For more information, see [BGP peering IP addresses](https://cloud.google.com/network-connectivity/docs/router/concepts/overview#bgp-ips).\n\nJuly 20, 2023\n-------------\n\nThe Cloud Router custom learned routes feature is **Generally Available** ([GA](https://cloud.google.com/products#product-launch-stages)). For more information, see [Custom learned routes](https://cloud.google.com/network-connectivity/docs/router/concepts/custom-learned-routes).\n\nMay 10, 2023\n------------\n\nThe Cloud Router custom learned routes feature is in [Preview](https://cloud.google.com/products#product-launch-stages). This feature lets you configure a Border Gateway Protocol (BGP) session to include learned routes that you manually specify. Cloud Router then behaves as if it learned the routes from the BGP peer.\n\nCustom learned routes can be helpful if you want to avoid the limitations of [static routes](https://cloud.google.com/vpc/docs/routes#static_routes). For example:\n\n- Static routes can't detect a loss of reachability in the next hop of a route. In contrast, custom learned routes *can* detect a loss of reachability, and they react accordingly to avoid dropping traffic without notification.\n\n- Static routes do not support using HA VPN tunnels or Cloud Interconnect VLAN attachments as next hops. Custom learned routes do.\n\nFor more information, see [Custom learned routes](https://cloud.google.com/network-connectivity/docs/router/concepts/custom-learned-routes).\n\nDecember 14, 2022\n-----------------\n\nCloud Router supports [Multiprotocol BGP (MP-BGP)](https://cloud.google.com/network-connectivity/docs/router/concepts/overview#ipv6) and can [exchange IPv6 prefixes](https://cloud.google.com/network-connectivity/docs/router/how-to/configuring-ipv6-bgp) over IPv4 BGP sessions. Cloud Router supports IPv6 prefix advertisement for VPC networks with [dual-stack subnets](https://cloud.google.com/vpc/docs/subnets#subnet-types). You can enable IPv6 prefix exchange over IPv4 BGP sessions that are created for [HA VPN tunnels](https://cloud.google.com/network-connectivity/docs/vpn/concepts/overview#ipv6_support). This feature is [generally available](https://cloud.google.com/products#product-launch-stages).\n\nNovember 01, 2022\n-----------------\n\nThe Cloud Router BGP MD5 authentication feature is **Generally Available** ([GA](https://cloud.google.com/products#product-launch-stages)). For more information, see [Use MD5 authentication](https://cloud.google.com/network-connectivity/docs/router/how-to/use-md5-authentication).\n\nSeptember 20, 2022\n------------------\n\nYou can now use the Google Cloud Console to configure MD5 authentication for BGP sessions. The MD5 authentication feature is available in [Preview](https://cloud.google.com/products#product-launch-stages). For more information, see [Use MD5 authentication](https://cloud.google.com/network-connectivity/docs/router/how-to/use-md5-authentication).\n\nMay 10, 2022\n------------\n\nCloud Router now supports MD5 authentication of BGP sessions. This feature is available in [preview](https://cloud.google.com/products#product-launch-stages). For more information, see [Use MD5 authentication](https://cloud.google.com/network-connectivity/docs/router/how-to/use-md5-authentication).\n\nFebruary 07, 2022\n-----------------\n\n[Bidirectional Forwarding Detection (BFD)](https://cloud.google.com/network-connectivity/docs/router/concepts/bfd) for Cloud Router is **Generally Available** ([GA](https://cloud.google.com/products#product-launch-stages)).\n\nJanuary 25, 2022\n----------------\n\nThe Cloud Router documentation now includes a [page](https://cloud.google.com/network-connectivity/docs/router/concepts/bgp-states) that describes the possible values for a BGP session's state. Also, the documentation about diagnostic messages and session states related to Bidirectional Forwarding Detection (BFD) has moved from [Troubleshooting](https://cloud.google.com/network-connectivity/docs/router/support/troubleshooting) to a [new page](https://cloud.google.com/network-connectivity/docs/router/concepts/bfd). BFD is in [preview](https://cloud.google.com/products#product-launch-stages) and is covered by the [Pre-GA Offerings Terms](https://cloud.google.com/terms/service-terms#1) of the Google Cloud Terms of Service.\n\nOctober 25, 2021\n----------------\n\n[Bidirectional Forwarding Detection (BFD)](https://cloud.google.com/network-connectivity/docs/router/concepts/bfd) for Cloud Router is available in **Preview**.\n\nJune 23, 2021\n-------------\n\nCloud Router now supports the following:\n\n- [Enabling and disabling BGP sessions](https://cloud.google.com/network-connectivity/docs/router/how-to/terminating-bgp)\n- [Updating the BGP keepalive interval](https://cloud.google.com/network-connectivity/docs/router/how-to/managing-bgp-timers#updating_the_bgp_keepalive_interval_for)\n\nJune 16, 2020\n-------------\n\nThe public documentation for Cloud Router is now located under the [Network Connectivity page](https://cloud.google.com/network-connectivity/docs/).\n\nSeptember 26, 2018\n------------------\n\nAdded recommended settings for the Graceful Restart timer and the Stalepath timer to the [Overview page](https://cloud.google.com/network-connectivity/docs/router/concepts/overview#timer-settings).\n\nAugust 27, 2018\n---------------\n\nAdded a section on BGP timer settings to the [Overview page](https://cloud.google.com/network-connectivity/docs/router/concepts/overview#timer-settings).\n\nMarch 14, 2018\n--------------\n\nSpecifying Cloud Router [route advertisements](https://cloud.google.com/network-connectivity/docs/router/concepts/overview#route-advertisement) is **Generally Available**.\n\nJanuary 12, 2018\n----------------\n\nSpecifying Cloud Router [route advertisements](https://cloud.google.com/network-connectivity/docs/router/concepts/overview#route-advertisement) is in **Beta**.\n\nOctober 19, 2017\n----------------\n\nSetting a VPC network's [dynamic routing mode](https://cloud.google.com/network-connectivity/docs/router/concepts/overview#dynamic-routing-mode) is **Generally Available**.\n\nAugust 17, 2017\n---------------\n\nSetting a VPC network's [dynamic routing mode](https://cloud.google.com/network-connectivity/docs/router/concepts/overview#dynamic-routing-mode) is is in **Beta**. The VPC dynamic routing mode determines whether Cloud Router advertises and propagates routes globally or regionally. \nPublished a standalone guide for Cloud Router."]]
