changelogs

Signed-off-by: Sunjay Bhatia <sunjayb@vmware.com>

changelogs/CHANGELOG-v1.24.6.md

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+We are delighted to present version v1.24.6 of Contour, our layer 7 HTTP reverse proxy for Kubernetes clusters.
+
+- [All Changes](#all-changes)
+- [Installing/Upgrading](#installing-and-upgrading)
+- [Compatible Kubernetes Versions](#compatible-kubernetes-versions)
+
+# All Changes
+
+This release includes various dependency bumps and fixes for [CVE-2023-44487](https://nvd.nist.gov/vuln/detail/CVE-2023-44487), including:
+
+- Update to Envoy v1.25.10. See the [Envoy release notes](https://www.envoyproxy.io/docs/envoy/v1.25.10/version_history/v1.25/v1.25.10) for more information about the content of the release.
+- Update to Go v1.20.10. See the [Go release notes](https://go.dev/doc/devel/release#go1.20.minor) for more information.
+
+Additional mitigations have been added for CVE-2023-44487 in the form of new configuration fields:
+
+## Max HTTP requests per IO cycle is configurable as an additional mitigation for HTTP/2 CVE-2023-44487
+
+Envoy mitigates CVE-2023-44487 with some default runtime settings, however the `http.max_requests_per_io_cycle` does not have a default value.
+This change allows configuring this runtime setting via Contour configuration to allow administrators of Contour to prevent abusive connections from starving resources from other valid connections.
+The default is left as the existing behavior (no limit) so as not to impact existing valid traffic.
+
+The Contour ConfigMap can be modified similar to the following (and Contour restarted) to set this value:
+
+```
+listener:
+  max-requests-per-io-cycle: 10
+```
+
+(Note this can be used in addition to the existing Listener configuration field `listener.max-requests-per-connection` which is used primarily for HTTP/1.1 connections and is an approximate limit for HTTP/2)
+
+## HTTP/2 max concurrent streams is configurable
+
+This field can be used to limit the number of concurrent streams Envoy will allow on a single connection from a downstream peer.
+It can be used to tune resource usage and as a mitigation for DOS attacks arising from vulnerabilities like CVE-2023-44487.
+
+The Contour ConfigMap can be modified similar to the following (and Contour restarted) to set this value:
+
+```
+listener:
+  http2-max-concurrent-streams: 50
+```
+
+
+# Installing and Upgrading
+
+For a fresh install of Contour, consult the [getting started documentation](https://projectcontour.io/getting-started/).
+
+To upgrade an existing Contour installation, please consult the [upgrade documentation](https://projectcontour.io/resources/upgrading/).
+
+
+# Compatible Kubernetes Versions
+
+Contour v1.24.6 is tested against Kubernetes 1.24 through 1.26.
+
+
+# Are you a Contour user? We would love to know!
+If you're using Contour and want to add your organization to our adopters list, please visit this [page](https://github.com/projectcontour/contour/blob/master/ADOPTERS.md). If you prefer to keep your organization name anonymous but still give us feedback into your usage and scenarios for Contour, please post on this [GitHub thread](https://github.com/projectcontour/contour/issues/1269).

changelogs/CHANGELOG-v1.25.3.md

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+We are delighted to present version v1.25.3 of Contour, our layer 7 HTTP reverse proxy for Kubernetes clusters.
+
+- [All Changes](#all-changes)
+- [Installing/Upgrading](#installing-and-upgrading)
+- [Compatible Kubernetes Versions](#compatible-kubernetes-versions)
+
+# All Changes
+
+This release includes various dependency bumps and fixes for [CVE-2023-44487](https://nvd.nist.gov/vuln/detail/CVE-2023-44487), including:
+
+- Update to Envoy v1.26.5. See the [Envoy release notes](https://www.envoyproxy.io/docs/envoy/v1.26.5/version_history/v1.26/v1.26.5) for more information about the content of the release.
+- Update to Go v1.20.10. See the [Go release notes](https://go.dev/doc/devel/release#go1.20.minor) for more information.
+
+Additional mitigations have been added for CVE-2023-44487 in the form of new configuration fields:
+
+## Max HTTP requests per IO cycle is configurable as an additional mitigation for HTTP/2 CVE-2023-44487
+
+Envoy mitigates CVE-2023-44487 with some default runtime settings, however the `http.max_requests_per_io_cycle` does not have a default value.
+This change allows configuring this runtime setting via Contour configuration to allow administrators of Contour to prevent abusive connections from starving resources from other valid connections.
+The default is left as the existing behavior (no limit) so as not to impact existing valid traffic.
+
+The Contour ConfigMap can be modified similar to the following (and Contour restarted) to set this value:
+
+```
+listener:
+  max-requests-per-io-cycle: 10
+```
+
+(Note this can be used in addition to the existing Listener configuration field `listener.max-requests-per-connection` which is used primarily for HTTP/1.1 connections and is an approximate limit for HTTP/2)
+
+## HTTP/2 max concurrent streams is configurable
+
+This field can be used to limit the number of concurrent streams Envoy will allow on a single connection from a downstream peer.
+It can be used to tune resource usage and as a mitigation for DOS attacks arising from vulnerabilities like CVE-2023-44487.
+
+The Contour ConfigMap can be modified similar to the following (and Contour restarted) to set this value:
+
+```
+listener:
+  http2-max-concurrent-streams: 50
+```
+
+
+# Installing and Upgrading
+
+For a fresh install of Contour, consult the [getting started documentation](https://projectcontour.io/getting-started/).
+
+To upgrade an existing Contour installation, please consult the [upgrade documentation](https://projectcontour.io/resources/upgrading/).
+
+
+# Compatible Kubernetes Versions
+
+Contour v1.25.3 is tested against Kubernetes 1.25 through 1.27.
+
+
+# Are you a Contour user? We would love to know!
+If you're using Contour and want to add your organization to our adopters list, please visit this [page](https://github.com/projectcontour/contour/blob/master/ADOPTERS.md). If you prefer to keep your organization name anonymous but still give us feedback into your usage and scenarios for Contour, please post on this [GitHub thread](https://github.com/projectcontour/contour/issues/1269).

changelogs/CHANGELOG-v1.26.1.md

@@ -0,0 +1,57 @@
+We are delighted to present version v1.26.1 of Contour, our layer 7 HTTP reverse proxy for Kubernetes clusters.
+
+- [All Changes](#all-changes)
+- [Installing/Upgrading](#installing-and-upgrading)
+- [Compatible Kubernetes Versions](#compatible-kubernetes-versions)
+
+# All Changes
+
+This release includes various dependency bumps and fixes for [CVE-2023-44487](https://nvd.nist.gov/vuln/detail/CVE-2023-44487), including:
+
+- Update to Envoy v1.27.1. See the [Envoy release notes](https://www.envoyproxy.io/docs/envoy/v1.27.1/version_history/v1.27/v1.27.1) for more information about the content of the release.
+- Update to Go v1.20.10. See the [Go release notes](https://go.dev/doc/devel/release#go1.20.minor) for more information.
+
+Additional mitigations have been added for CVE-2023-44487 in the form of new configuration fields:
+
+## Max HTTP requests per IO cycle is configurable as an additional mitigation for HTTP/2 CVE-2023-44487
+
+Envoy mitigates CVE-2023-44487 with some default runtime settings, however the `http.max_requests_per_io_cycle` does not have a default value.
+This change allows configuring this runtime setting via Contour configuration to allow administrators of Contour to prevent abusive connections from starving resources from other valid connections.
+The default is left as the existing behavior (no limit) so as not to impact existing valid traffic.
+
+The Contour ConfigMap can be modified similar to the following (and Contour restarted) to set this value:
+
+```
+listener:
+  max-requests-per-io-cycle: 10
+```
+
+(Note this can be used in addition to the existing Listener configuration field `listener.max-requests-per-connection` which is used primarily for HTTP/1.1 connections and is an approximate limit for HTTP/2)
+
+## HTTP/2 max concurrent streams is configurable
+
+This field can be used to limit the number of concurrent streams Envoy will allow on a single connection from a downstream peer.
+It can be used to tune resource usage and as a mitigation for DOS attacks arising from vulnerabilities like CVE-2023-44487.
+
+The Contour ConfigMap can be modified similar to the following (and Contour restarted) to set this value:
+
+```
+listener:
+  http2-max-concurrent-streams: 50
+```
+
+
+# Installing and Upgrading
+
+For a fresh install of Contour, consult the [getting started documentation](https://projectcontour.io/getting-started/).
+
+To upgrade an existing Contour installation, please consult the [upgrade documentation](https://projectcontour.io/resources/upgrading/).
+
+
+# Compatible Kubernetes Versions
+
+Contour v1.26.1 is tested against Kubernetes 1.26 through 1.28.
+
+
+# Are you a Contour user? We would love to know!
+If you're using Contour and want to add your organization to our adopters list, please visit this [page](https://github.com/projectcontour/contour/blob/master/ADOPTERS.md). If you prefer to keep your organization name anonymous but still give us feedback into your usage and scenarios for Contour, please post on this [GitHub thread](https://github.com/projectcontour/contour/issues/1269).