diff --git a/.bumpversion.cfg b/.bumpversion.cfg
index fadf60275..dc5b81465 100644
--- a/.bumpversion.cfg
+++ b/.bumpversion.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 1.5.0b3
+current_version = 1.5.0b4
 parse = (?P<major>[\d]+) # major version number
 	\.(?P<minor>[\d]+) # minor version number
 	\.(?P<patch>[\d]+) # patch version number
diff --git a/.changes/1.5.0-b4.md b/.changes/1.5.0-b4.md
new file mode 100644
index 000000000..2262d374d
--- /dev/null
+++ b/.changes/1.5.0-b4.md
@@ -0,0 +1,18 @@
+## dbt-bigquery 1.5.0-b4 - March 30, 2023
+
+### Features
+
+- Adding `bytes_billed` to `BigQueryAdapterResponse`  ([#560](https://github.com/dbt-labs/dbt-bigquery/issues/560))
+- Modify addapter to support unified constraint fields ([#567](https://github.com/dbt-labs/dbt-bigquery/issues/567))
+- Modify create_table_as to use contract column order ([#579](https://github.com/dbt-labs/dbt-bigquery/issues/579))
+
+### Fixes
+
+- Use _make_ref_key_dict instead of _make_ref_key_msg ([#621](https://github.com/dbt-labs/dbt-bigquery/issues/621))
+
+### Under the Hood
+
+- Treat contract config as a python object ([#548](https://github.com/dbt-labs/dbt-bigquery/issues/548), [#633](https://github.com/dbt-labs/dbt-bigquery/issues/633))
+
+### Contributors
+- [@bruno-szdl](https://github.com/bruno-szdl) ([#560](https://github.com/dbt-labs/dbt-bigquery/issues/560))
diff --git a/.changes/unreleased/Features-20230228-094234.yaml b/.changes/1.5.0/Features-20230228-094234.yaml
similarity index 100%
rename from .changes/unreleased/Features-20230228-094234.yaml
rename to .changes/1.5.0/Features-20230228-094234.yaml
diff --git a/.changes/unreleased/Features-20230314-171221.yaml b/.changes/1.5.0/Features-20230314-171221.yaml
similarity index 100%
rename from .changes/unreleased/Features-20230314-171221.yaml
rename to .changes/1.5.0/Features-20230314-171221.yaml
diff --git a/.changes/unreleased/Features-20230315-120554.yaml b/.changes/1.5.0/Features-20230315-120554.yaml
similarity index 100%
rename from .changes/unreleased/Features-20230315-120554.yaml
rename to .changes/1.5.0/Features-20230315-120554.yaml
diff --git a/.changes/unreleased/Fixes-20230322-162200.yaml b/.changes/1.5.0/Fixes-20230322-162200.yaml
similarity index 100%
rename from .changes/unreleased/Fixes-20230322-162200.yaml
rename to .changes/1.5.0/Fixes-20230322-162200.yaml
diff --git a/.changes/unreleased/Under the Hood-20230223-105149.yaml b/.changes/1.5.0/Under the Hood-20230223-105149.yaml
similarity index 100%
rename from .changes/unreleased/Under the Hood-20230223-105149.yaml
rename to .changes/1.5.0/Under the Hood-20230223-105149.yaml
diff --git a/CHANGELOG.md b/CHANGELOG.md
index a71fcd8bf..a1e6f96bf 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,26 @@
 - "Breaking changes" listed under a version may require action from end users or external maintainers when upgrading to that version.
 - Do not edit this file directly. This file is auto-generated using [changie](https://github.com/miniscruff/changie). For details on how to document a change, see [the contributing guide](https://github.com/dbt-labs/dbt-bigquery/blob/main/CONTRIBUTING.md#adding-changelog-entry)
 
+## dbt-bigquery 1.5.0-b4 - March 30, 2023
+
+### Features
+
+- Adding `bytes_billed` to `BigQueryAdapterResponse`  ([#560](https://github.com/dbt-labs/dbt-bigquery/issues/560))
+- Modify addapter to support unified constraint fields ([#567](https://github.com/dbt-labs/dbt-bigquery/issues/567))
+- Modify create_table_as to use contract column order ([#579](https://github.com/dbt-labs/dbt-bigquery/issues/579))
+
+### Fixes
+
+- Use _make_ref_key_dict instead of _make_ref_key_msg ([#621](https://github.com/dbt-labs/dbt-bigquery/issues/621))
+
+### Under the Hood
+
+- Treat contract config as a python object ([#548](https://github.com/dbt-labs/dbt-bigquery/issues/548), [#633](https://github.com/dbt-labs/dbt-bigquery/issues/633))
+
+### Contributors
+- [@bruno-szdl](https://github.com/bruno-szdl) ([#560](https://github.com/dbt-labs/dbt-bigquery/issues/560))
+
+
 ## dbt-bigquery 1.5.0-b3 - March 16, 2023
 
 ### Features
@@ -26,7 +46,6 @@
 - [@patkearns10](https://github.com/patkearns10) ([#562](https://github.com/dbt-labs/dbt-bigquery/issues/562))
 - [@torkjel](https://github.com/torkjel) ([#530](https://github.com/dbt-labs/dbt-bigquery/issues/530))
 
-
 ## dbt-bigquery 1.5.0-b2 - March 02, 2023
 
 ### Under the Hood
diff --git a/dbt/adapters/bigquery/__version__.py b/dbt/adapters/bigquery/__version__.py
index 649c005ac..4a7a8147e 100644
--- a/dbt/adapters/bigquery/__version__.py
+++ b/dbt/adapters/bigquery/__version__.py
@@ -1 +1 @@
-version = "1.5.0b3"
+version = "1.5.0b4"
diff --git a/setup.py b/setup.py
index 3186aa435..b401f311e 100644
--- a/setup.py
+++ b/setup.py
@@ -58,7 +58,7 @@ def _dbt_core_version(plugin_version: str) -> str:
 
 
 package_name = "dbt-bigquery"
-package_version = "1.5.0b3"
+package_version = "1.5.0b4"
 dbt_core_version = _dbt_core_version(_dbt_bigquery_version())
 description = """The BigQuery adapter plugin for dbt"""