diff --git a/CITATION.cff b/CITATION.cff
index 52d12674..4aa58f20 100644
--- a/CITATION.cff
+++ b/CITATION.cff
@@ -56,4 +56,4 @@ abstract: >-
   including its Wide Field Instrument and a preliminary
   version of the Coronagraph Instrument.
 license: BSD-3-Clause
-version: 1.4.0
+version: 1.5.0
diff --git a/docs/relnotes.rst b/docs/relnotes.rst
index 64433389..1a4aa89a 100644
--- a/docs/relnotes.rst
+++ b/docs/relnotes.rst
@@ -24,6 +24,15 @@ Version History and Change Log
 -------------------------------
 
 
+Version 1.5.0
+=============
+*2024 December*
+WebbPSF IS BEING MIGRATED TO A NEW REPOSITORY: STPSF (Space Telescope PSF)
+To reflect its broader support for Roman as well as James Webb, WebbPSF is being migrated to a new repository: STPSF (Space Telescope PSF).
+This transition is being done in such a way as to maintain back-compatibility for existing code, and existing installations will continue to run as-is.
+This transitional period is ongoing now.
+
+
 Version 1.4.0
 =============
 
diff --git a/webbpsf/__init__.py b/webbpsf/__init__.py
index 76358dfe..6a99574a 100644
--- a/webbpsf/__init__.py
+++ b/webbpsf/__init__.py
@@ -40,7 +40,7 @@ class UnsupportedPythonError(Exception):
 # required. If changes to the code and data mean WebbPSF won't work
 # properly with an old data package, increment this version number.
 # (It's checked against $WEBBPSF_DATA/version.txt)
-DATA_VERSION_MIN = (1, 4, 0)
+DATA_VERSION_MIN = (1, 5, 0)
 
 
 class Conf(_config.ConfigNamespace):