diff --git a/CITATION.cff b/CITATION.cff
index 1b9341f1..86b7620f 100644
--- a/CITATION.cff
+++ b/CITATION.cff
@@ -134,8 +134,8 @@ keywords:
   - systems codes
   - power plant
 license: MIT
-version: 2.5.0
-date-released: "2023-09-11"
+version: 3.0.0
+date-released: "2023-09-12"
 references:
   - title: '"PROCESS": A systems code for fusion power plants—Part 1 Physics'
     type: article
diff --git a/setup.py b/setup.py
index 6a43485c..983ae4e1 100644
--- a/setup.py
+++ b/setup.py
@@ -11,7 +11,7 @@
 
 setup_kwargs = {
     "name": MODULE_NAME,
-    "version": "2.5.0",
+    "version": "3.0.0",
     "description": (
         "Power Reactor Optimisation Code for Environmental and Safety Studies"
     ),
diff --git a/source/fortran/main_module.f90 b/source/fortran/main_module.f90
index ab8fd6a1..6f40f376 100644
--- a/source/fortran/main_module.f90
+++ b/source/fortran/main_module.f90
@@ -48,7 +48,7 @@ subroutine inform(progid)
   character(len=10) :: progname
   character(len=98) :: executable
   character(len=*), parameter :: progver = &  !  Beware: keep exactly same format...
-       '2.5.0   Release Date :: 2023-09-11'
+       '3.0.0   Release Date :: 2023-09-12'
   character(len = 50) :: dt_time
   character(len=72), dimension(10) :: id