diff --git a/docs/changelog.md b/docs/changelog.md
new file mode 100644
index 0000000000000000000000000000000000000000..73e5dc24d456087bb32fcdbbec1796b936b477f3
--- /dev/null
+++ b/docs/changelog.md
@@ -0,0 +1,10 @@
+# Change log
+
+## v1.2.0 (06-11-2025)
+This is the first major patch since pythermogis went public. We have updated the ThermoGIS jar file to match the latest version of the core ThermoGIS Java code.
+This means that if you use this latest version of pythermogis you will also have to update the jar file downloaded on your system.
+
+Additonally, setting of the THERMOGIS_JAR and JAVA_HOME environment variables can now be done in a .env text file in any of your projects that utilises pythermogis. 
+This is particularly useful for users who do not have admin rights.
+
+We also recognise that having to replace the Jar file everytime we update it is clunky and we will be working hard to remove this necessity in future updates.
diff --git a/docs/install/install.md b/docs/install/install.md
index 8bb1faa75e1c660526f6b76739572b834b627453..7fe549d7eeaa23105271d364ef125faea0073d46 100644
--- a/docs/install/install.md
+++ b/docs/install/install.md
@@ -22,7 +22,7 @@ This file should contain the following variables:
   *(e.g. `/path/to/the/thermogis-1.7.0-shaded.jar`)*
 
 Example:
-![img.png](docs/images/dotenv_file_example.png)
+![img.png](../images/dotenv_file_example.png)
 
 
 ### 3. Import pyThermoGIS into your own python projects
diff --git a/mkdocs.yml b/mkdocs.yml
index 0381ebd8a59d37b08310187846431209994ef538..a351b1ca73163605b05187a0ab75a61b099a95d3 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -26,8 +26,9 @@ repo_name: pyThermoGIS
 repo_url: https://ci.tno.nl/gitlab/AGS/pythermogis
 
 nav:
-  - Home: index.md
-
+  - Get Started:
+      - Welcome: index.md
+      - Change Log: changelog.md
   - Installation: install/install.md
 
   - Theory:
diff --git a/pixi.lock b/pixi.lock
index 07eb60ceb7c703fe67e627320f8e751dd8e0d0b7..84825e0e0e6bf189c342b197e9c6091a94c37afb 100644
--- a/pixi.lock
+++ b/pixi.lock
@@ -4829,8 +4829,8 @@ packages:
   timestamp: 1740946648058
 - pypi: ./
   name: pythermogis
-  version: 1.1.2
-  sha256: 6c2c51bb843ce5d8e0fb17a271a6425a468bc6da8718c96355b2132adc2a0c4d
+  version: 1.2.0
+  sha256: 856212b888cdabfc02f91671bfc497c663e84dd8a93f714d845e867811ee2cd3
   requires_dist:
   - jpype1>=1.5.2,<2
   - xarray==2024.9.0.*
diff --git a/pyproject.toml b/pyproject.toml
index 13e899d2b8b97a8310aaaa7aae09fc996ebfc025..620bcb4cf3fb0b75c7ae1a9be0f43e896541ba21 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "pythermogis"
-version = "1.1.2"
+version = "1.2.0"
 description = "This repository is used as a python API for the ThermoGIS Doublet simulations"
 authors = [
     { name = "Hen Brett", email = "hen.brett@tno.nl" },
diff --git a/src/pythermogis/thermogis_classes/doublet.py b/src/pythermogis/thermogis_classes/doublet.py
index 013be70b9d68aece17610664f23a8eab2fa1b579..3360a824e7ba0769e48cfff1785798bdf95501d1 100644
--- a/src/pythermogis/thermogis_classes/doublet.py
+++ b/src/pythermogis/thermogis_classes/doublet.py
@@ -74,8 +74,6 @@ def calculate_performance_of_single_location(mask: float, depth: float, thicknes
         Transmissivity of the aquifer.
     transmissivity_with_ntg : float
         Product of transmissivity and net-to-gross.
-    doublet : object
-        An instance of the ThermoGIS doublet class.
     mask_value : float
         0.0 by default, Any cell that results in a failed simulation or corresponds to a
         non-nan value in the mask parameter will be assigned the mask value