diff --git a/CHANGELOG.md b/CHANGELOG.md
index 918bf22..0ba0304 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,29 @@ CHANGELOG
 =========
 
 
+1.2.0: Single template input (2023-09-08)
+-----------------------------------------
+
+## Frontend
+- Redesign to a single template input. The multi-template editor is hidden and can be activated with the parameter `mailgen_multi_templates_enabled`
+- Pass assigned columns to the backend for notification preview and data submission
+- Minor style enhancement in email preview
+- Minor: add more spacing between the explanation text and the subject
+- Target groups: add select all/none buttons
+- Separate function for converting data to table
+
+## Backend
+- Allow single template input and pass to mailgen
+- Do not send data to the redis queue if validation/submission with bots is active (would be a double-submit)
+- Refactor format_spec creation, more checks/sanitation
+- Template preview: use first line of data instead of fully relying on example data, use the first line of input data if available
+- Use assigned columns as default table format: the columns assigned by the user in the frontend are used as default table format for mailgen
+- Compatibility changes on deprecated pkg_resources / importlib replacement, make it compatible on both Ubuntu 20.04 and 22.04, update tests and GitHub Workflows
+
+## Documentation
+- Add section about the behaviour of the Frontend's "Submit/Validate with Bots" parameter
+
+
 1.1.0: UI Enhancements (2023-08-21)
 -----------------------------------
 
@@ -148,7 +171,7 @@ CHANGELOG
 - Do not throw errors on badly formatted time fields (#65).
 - Add optional parameter `destination_pipeline_queue_formatted` and allow formatting of `destination_pipeline_queue`.
 - Log exception if sending data to the pipeline did not work.
-- For type-detection do not apply sanitiation as this results in strange detections some times (#69).
+- For type-detection do not apply sanitation as this results in strange detections some times (#69).
 - Save `raw` field including header for each event (#66).
 
 ### Configuration
diff --git a/client/src/components/WebinputCSV.vue b/client/src/components/WebinputCSV.vue
index caee5f0..c5cb0e0 100644
--- a/client/src/components/WebinputCSV.vue
+++ b/client/src/components/WebinputCSV.vue
@@ -826,7 +826,7 @@ export default ({
       errorMessage: null,
       showErrorModal: false,
       mailgenTargetGroups: [],
-      clientVersion: "1.1.0",
+      clientVersion: "1.2.0",
       templateDeletionModal: false,
       templateToDelete: {'index': null, 'template_name': null},
       mailgenTemplate: '',
diff --git a/debian/changelog b/debian/changelog
index 3177fc4..df1ab5d 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,24 @@
+intelmq-webinput-csv (1.2.0-1) stable; urgency=medium
+
+  * Frontend
+    * Redesign to a single template input. The multi-template editor is hidden and can be activated with the parameter `mailgen_multi_templates_enabled`
+    * Pass assigned columns to the backend for notification preview and data submission
+    * Minor style enhancement in email preview
+    * Minor: add more spacing between the explanation text and the subject
+    * Target groups: add select all/none buttons
+    * Separate function for converting data to table
+  * Backend
+    * Allow single template input and pass to mailgen
+    * Do not send data to the redis queue if validation/submission with bots is active (would be a double-submit)
+    * Refactor format_spec creation, more checks/sanitation
+    * Template preview: use first line of data instead of fully relying on example data, use the first line of input data if available
+    * Use assigned columns as default table format: the columns assigned by the user in the frontend are used as default table format for mailgen
+    * Compatibility changes on deprecated pkg_resources / importlib replacement, make it compatible on both Ubuntu 20.04 and 22.04, update tests and GitHub Workflows
+  * Documentation
+    * Add section about the behaviour of the Frontend's "Submit/Validate with Bots" parameter
+
+ -- Sebastian Wagner <swagner@intevation.de>  Fri, 08 Sep 2023 12:14:35 +0200
+
 intelmq-webinput-csv (1.1.0-1) stable; urgency=medium
 
   * Frontend
diff --git a/intelmq_webinput_csv/version.py b/intelmq_webinput_csv/version.py
index ba29901..995858a 100644
--- a/intelmq_webinput_csv/version.py
+++ b/intelmq_webinput_csv/version.py
@@ -1,4 +1,4 @@
 # SPDX-FileCopyrightText: 2017-2018 nic.at GmbH <wagner@cert.at>, 2022-2023 Bundesamt für Sicherheit in der Informationstechnik
 # SPDX-License-Identifier: AGPL-3.0-or-later
-__version_info__ = (1, 1, 0)
+__version_info__ = (1, 2, 0)
 __version__ = '.'.join(map(str, __version_info__))