prepare Ditto 3.4.4 release notes

Signed-off-by: Thomas Jäckle <thomas.jaeckle@beyonnex.io>

documentation/src/main/resources/_data/sidebars/ditto_sidebar.yml

@@ -23,6 +23,9 @@ entries:
       - title: Release Notes
         output: web
         folderitems:
+          - title: 3.4.4
+            url: /release_notes_344.html
+            output: web
           - title: 3.4.3
             url: /release_notes_343.html
             output: web

documentation/src/main/resources/pages/ditto/release_notes_343.md

@@ -7,11 +7,11 @@ summary: "Version 3.4.3 of Eclipse Ditto, released on 05.12.2023"
 permalink: release_notes_343.html
 ---
 
-This is a bugfix release, no new features since [3.4.2](release_notes_341.html) were added.
+This is a bugfix release, no new features since [3.4.2](release_notes_342.html) were added.
 
 ## Changelog
 
-Compared to the latest release [3.4.2](release_notes_341.html), the following changes and bugfixes were added.
+Compared to the latest release [3.4.2](release_notes_342.html), the following changes and bugfixes were added.
 
 ### Changes
 

documentation/src/main/resources/pages/ditto/release_notes_344.md

@@ -0,0 +1,35 @@
+---
+title: Release notes 3.4.4
+tags: [release_notes]
+published: true
+keywords: release notes, announcements, changelog
+summary: "Version 3.4.4 of Eclipse Ditto, released on 02.01.2024"
+permalink: release_notes_344.html
+---
+
+This is a bugfix release, no new features since [3.4.3](release_notes_343.html) were added.
+
+## Changelog
+
+Compared to the latest release [3.4.3](release_notes_343.html), the following changes and bugfixes were added.
+
+### Changes
+
+
+### Bugfixes
+
+This is a complete list of the
+[merged pull requests](https://github.com/eclipse-ditto/ditto/pulls?q=is%3Apr+milestone%3A3.4.4).
+
+#### Fetching a thing at a non-existing historical revision (e.g. in future) results in status 503
+
+Bug [#1844](https://github.com/eclipse-ditto/ditto/issues/1844) caused that a request for a non-existing 
+`at-historical-revision` resulted in an HTTP status `503` and caused the actor to be blocked for 15 seconds.  
+This was fixed in PR [#1845](https://github.com/eclipse-ditto/ditto/pull/1845).
+
+#### Fixed that "condition" query param could not be provided as form field
+
+PR [#1848](https://github.com/eclipse-ditto/ditto/pull/1848) fixes that - when using the `POST /search/things` endpoint
+the `condition` query parameter could not be passed as form field - which again leads to potentially too large HTTP urls
+when providing a very long query/condition RQL.
+