Release notes for 8.12.2 (#15956) (#15972)

Co-authored-by: João Duarte <[email protected]>
(cherry picked from commit 2c89bcf)

docs/static/releasenotes.asciidoc

@@ -3,6 +3,7 @@
 
 This section summarizes the changes in the following releases:
 
+* <<logstash-8-12-2,Logstash 8.12.2>>
 * <<logstash-8-12-1,Logstash 8.12.1>>
 * <<logstash-8-12-0,Logstash 8.12.0>>
 * <<logstash-8-11-4,Logstash 8.11.4>>
@@ -54,6 +55,23 @@ This section summarizes the changes in the following releases:
 * <<logstash-8-0-0-alpha1,Logstash 8.0.0-alpha1>>
 
 
+[[logstash-8-12-2]]
+=== Logstash 8.12.2 Release Notes
+
+* Set Netty's maxOrder options to previous default value of 11 https://github.com/elastic/logstash/pull/15928[#15928]
+* Add "openssl" to UBI docker images https://github.com/elastic/logstash/pull/15929[#15929]
+
+==== Plugins
+
+*Jdbc Integration - 5.4.8*
+
+* Update Derby to 10.15.2.1 (built from source) https://github.com/logstash-plugins/logstash-integration-jdbc/pull/155[#155] 
+* Update sequel version to >= 5.74.0, that allows the generic jdbc adapter to better handle disconnect errors https://github.com/logstash-plugins/logstash-integration-jdbc/pull/153[#153]
+
+*Kafka Integration - 11.3.4*
+
+* Fix "retries" and "value_serializer" error handling in output plugin https://github.com/logstash-plugins/logstash-integration-kafka/pull/160[#160]
+
 [[logstash-8-12-1]]
 === Logstash 8.12.1 Release Notes
 
@@ -2046,4 +2064,4 @@ We have added another flag to the Benchmark CLI to allow passing a data file wit
 This feature allows users to run the Benchmark CLI in a custom test case with a custom config and a custom dataset. https://github.com/elastic/logstash/pull/12437[#12437]
 
 ==== Plugin releases
-Plugins align with release 7.14.0
+Plugins align with release 7.14.0