docs(CHANGELOG) include changes for 2.8.1

CHANGELOG.md

@@ -1,5 +1,6 @@
 # Table of Contents
 
+- [2.8.1](#281)
 - [2.8.0](#280)
 - [2.7.1](#271)
 - [2.7.0](#270)
@@ -81,7 +82,7 @@
 ### Deprecations
 
 - The `go_pluginserver_exe` and `go_plugins_dir` directives are no longer supported.
-  [#8552](https://github.com/Kong/kong/pull/8552). If you are using 
+  [#8552](https://github.com/Kong/kong/pull/8552). If you are using
   [Go plugin server](https://github.com/Kong/go-pluginserver), please migrate your plugins to use the
   [Go PDK](https://github.com/Kong/go-pdk) before upgrading.
 
@@ -92,8 +93,8 @@
   `ngx.ctx.proxy_cache_hit` anymore. Logging plugins that need the response data
   must read it from `kong.ctx.shared.proxy_cache_hit` from Kong 3.0 on.
   [#8607](https://github.com/Kong/kong/pull/8607)
-- PDK now return `Uint8Array` and `bytes` for JavaScript's `kong.request.getRawBody`, 
-  `kong.response.getRawBody`, `kong.service.response.getRawBody` and Python's `kong.request.get_raw_body`, 
+- PDK now return `Uint8Array` and `bytes` for JavaScript's `kong.request.getRawBody`,
+  `kong.response.getRawBody`, `kong.service.response.getRawBody` and Python's `kong.request.get_raw_body`,
   `kong.response.get_raw_body`, `kong.service.response.get_raw_body` respectively.
   [#8623](https://github.com/Kong/kong/pull/8623)
 
@@ -117,7 +118,7 @@
 
 #### Plugins
 
-- **Zipkin**: add support for including HTTP path in span name 
+- **Zipkin**: add support for including HTTP path in span name
   through configuration property `http_span_name`.
   [#8150](https://github.com/Kong/kong/pull/8150)
 
@@ -170,6 +171,31 @@ a restart (e.g., upon a plugin server crash).
 - Do not register unnecessary event handlers on Hybrid mode Control Plane
 nodes [#8452](https://github.com/Kong/kong/pull/8452).
 
+
+## [2.8.1]
+
+### Dependencies
+
+- Bumped lua-resty-healthcheck from 1.5.0 to 1.5.1
+  [#8584](https://github.com/Kong/kong/pull/8584)
+- Bumped `OpenSSL` from 1.1.1l to 1.1.1n
+  [#8635](https://github.com/Kong/kong/pull/8635)
+
+### Fixes
+
+#### Core
+
+- Only reschedule router and plugin iterator timers after finishing previous
+  execution, avoiding unnecessary concurrent executions.
+  [#8634](https://github.com/Kong/kong/pull/8634)
+- Implements conditional rebuilding of router, plugins iterator and balancer on
+  data planes. This means that DPs will not rebuild router if there were no
+  changes in routes or services. Similarly, the plugins iterator will not be
+  rebuilt if there were no changes to plugins, and, finally, the balancer will not be
+  reinitialized if there are no changes to upstreams or targets.
+  [#8639](https://github.com/Kong/kong/pull/8639)
+
+
 ## [2.8.0]
 
 ### Deprecations
@@ -6948,6 +6974,7 @@ First version running with Cassandra.
 
 [Back to TOC](#table-of-contents)
 
+[2.8.1]: https://github.com/Kong/kong/compare/2.8.0...2.8.1
 [2.8.0]: https://github.com/Kong/kong/compare/2.7.0...2.8.0
 [2.7.1]: https://github.com/Kong/kong/compare/2.7.0...2.7.1
 [2.7.0]: https://github.com/Kong/kong/compare/2.6.0...2.7.0