initial eol announcement for 1.17 (#13943)

* initial eol announcement for 1.17

* Update content/en/news/support/announcing-1.17/index.md

Co-authored-by: Eric Van Norman <ericvn@us.ibm.com>

* Update content/en/news/support/announcing-1.17/index.md

Co-authored-by: Eric Van Norman <ericvn@us.ibm.com>

* Update content/en/news/support/announcing-1.17/index.md

Co-authored-by: Eric Van Norman <ericvn@us.ibm.com>

* rename and fix date

* Update content/en/news/support/announcing-1.17-eol/index.md

Co-authored-by: Eric Van Norman <ericvn@us.ibm.com>

* Update content/en/news/support/announcing-1.17-eol/index.md

Co-authored-by: Eric Van Norman <ericvn@us.ibm.com>

---------

Co-authored-by: Eric Van Norman <ericvn@us.ibm.com>

content/en/news/support/announcing-1.17-eol/index.md

@@ -0,0 +1,12 @@
+---
+title: Support for Istio 1.17 ends on October 27, 2023
+subtitle: Support Announcement
+description: Upcoming Istio 1.17 end of life announcement.
+publishdate: 2023-09-27
+---
+
+According to Istio's [support policy](/docs/releases/supported-releases#support-policy), minor releases like 1.17 are supported until six weeks after the N+2 minor release (1.19 in this case). [Istio 1.19 was released on September 5th, 2023](/news/releases/1.19.x/announcing-1.19/), and support for 1.17 will end on October 27th, 2023.
+
+At that point we will stop back-porting fixes for security issues and critical bugs to 1.17, so we encourage you to upgrade to the latest version of Istio ({{<istio_release_name>}}). If you don't do this you may put yourself in the position of having to do a major upgrade on a short timeframe to pick up a critical fix.
+
+We care about you and your clusters, so please be kind to yourself and upgrade.

data/compatibility/supportStatus.yml

@@ -22,7 +22,7 @@
 - version: "1.17"
   supported: "Yes"
   releaseDate: "Feb 14, 2023"
-  eolDate: "~Oct 2023 (Expected)"
+  eolDate: "Oct 27, 2023"
   k8sVersions: ["1.23", "1.24", "1.25", "1.26"]
   testedK8sVersions: ["1.16", "1.17", "1.18", "1.19", "1.20", "1.21", "1.22"]
 - version: "1.16"