diff --git a/CMakeLists.txt b/CMakeLists.txt
index d1c2702a0..19bf6655c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -19,7 +19,7 @@ list(APPEND CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/cmake")
 project(nominatim)
 
 set(NOMINATIM_VERSION_MAJOR 4)
-set(NOMINATIM_VERSION_MINOR 4)
+set(NOMINATIM_VERSION_MINOR 5)
 set(NOMINATIM_VERSION_PATCH 0)
 
 set(NOMINATIM_VERSION "${NOMINATIM_VERSION_MAJOR}.${NOMINATIM_VERSION_MINOR}.${NOMINATIM_VERSION_PATCH}")
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 1df644e75..757c52b7c 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -75,7 +75,10 @@ relevant changes are cherry-picked from the master branch.
 
 Checklist for releases:
 
-* [ ] increase version in `nominatim/version.py` and CMakeLists.txt
+* [ ] increase versions in
+  * `src/nominatim_api/version.py`
+  * `src/nominatim_db/version.py`
+  * CMakeLists.txt
 * [ ] update `ChangeLog` (copy information from patch releases from release branch)
 * [ ] complete `docs/admin/Migration.md`
 * [ ] update EOL dates in `SECURITY.md`
@@ -100,3 +103,4 @@ Checklist for releases:
   * compile and import Nominatim
   * run `nominatim --version` to confirm correct version
 * [ ] tag new release and add a release on github.com
+* [ ] build pip packages and upload to pypi
diff --git a/ChangeLog b/ChangeLog
index 2f5d51d5f..b7609255e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,34 @@
+4.5.0
+ * allow building Nominatim as a pip package
+ * make osm2pgsql building optional
+ * switch importer to psycopg3
+ * allow output format of web search to be customized in self-installations
+ * look up potential postcode areas for postcode results
+ * add word usage statistics for address terms
+ * implement more light-weight CSV format for wiki importance tables
+ * rewrite SQL for place search to use window functions
+ * increase search radius when filtering by postcode
+ * prefer POI points over POI areas
+ * reintroduce full terms for address terms in search_name table
+ * reindex postcodes when their parent is deleted
+ * indexing: precompute counts of affected rows
+ * ensure consistent country assignments for overlapping countries
+ * make Nominatim[Async]API context manager to ensure proper calling of
+   close()
+ * make usage of project dir optional for library
+ * drop interpolations when no parent can be found
+ * style tweaks to reflect OSM usage (man_made, highway and others)
+ * deprecation of: bundled osm2pgsql, legacy tokenizer, PHP frontend
+ * make documentation buildable without CMake
+ * various fixes and improvements to documentation
+
+4.4.1
+ * fix geocodejson output: admin level output should only print boundaries
+ * updating: restrict invalidation of child objects on large street features
+ * restrict valid interpolation house numbers to 0-999999
+ * fix import error when SQLAlchemy 1.4 and psycopg3 are installed
+ * various typo fixes in the documentation
+
 4.4.0
  * add export to SQLite database and SQLite support for the frontend
  * switch to Python frontend as the default frontend
@@ -8,7 +39,7 @@
  * fix regression in search with categories where it was confused with near
    search
  * partially roll back use of SQLAlchemy lambda statements due to bugs
-   in SQLAchemy
+   in SQLAlchemy
  * fix handling of timezones for timestamps from the database
  * fix handling of full address searches in connection with a viewbox
  * fix postcode computation of highway areas
diff --git a/SECURITY.md b/SECURITY.md
index a14eba131..3ec22cbde 100644
--- a/SECURITY.md
+++ b/SECURITY.md
@@ -9,10 +9,10 @@ versions.
 
 | Version | End of support for security updates |
 | ------- | ----------------------------------- |
+| 4.5.x   | 2026-09-12                          |
 | 4.4.x   | 2026-03-07                          |
 | 4.3.x   | 2025-09-07                          |
 | 4.2.x   | 2024-11-24                          |
-| 4.1.x   | 2024-08-05                          |
 
 ## Reporting a Vulnerability
 
diff --git a/docs/admin/Migration.md b/docs/admin/Migration.md
index 75f891412..b407d2ef3 100644
--- a/docs/admin/Migration.md
+++ b/docs/admin/Migration.md
@@ -20,7 +20,7 @@ breaking changes. **Please read them before running the migration.**
     If you are migrating from a version <3.6, then you still have to follow
     the manual migration steps up to 3.6.
 
-## 4.4.0 -> master
+## 4.4.0 -> 4.5.0
 
 ### New structure for Python packages
 
diff --git a/src/nominatim_api/version.py b/src/nominatim_api/version.py
index d275f4fc3..8c4de5a47 100644
--- a/src/nominatim_api/version.py
+++ b/src/nominatim_api/version.py
@@ -8,4 +8,4 @@
 Version information for the Nominatim API.
 """
 
-NOMINATIM_API_VERSION = '4.4.99'
+NOMINATIM_API_VERSION = '4.5.0'
diff --git a/src/nominatim_db/version.py b/src/nominatim_db/version.py
index 588a31c8c..8cc8e4fe3 100644
--- a/src/nominatim_db/version.py
+++ b/src/nominatim_db/version.py
@@ -58,7 +58,7 @@ def parse_version(version: str) -> NominatimVersion:
     return NominatimVersion(*[int(x) for x in parts[:2] + parts[2].split('-')])
 
 
-NOMINATIM_VERSION = parse_version('4.4.99-1')
+NOMINATIM_VERSION = parse_version('4.5.0-0')
 
 POSTGRESQL_REQUIRED_VERSION = (9, 6)
 POSTGIS_REQUIRED_VERSION = (2, 2)