diff --git a/.bumpversion.cfg b/.bumpversion.cfg
index 5baa94d2..f11f5488 100644
--- a/.bumpversion.cfg
+++ b/.bumpversion.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 1.9.0a1
+current_version = 1.9.0b1
 parse = (?P<major>[\d]+) # major version number
 	\.(?P<minor>[\d]+) # minor version number
 	\.(?P<patch>[\d]+) # patch version number
diff --git a/.changes/1.9.0-b1.md b/.changes/1.9.0-b1.md
new file mode 100644
index 00000000..7bebffe0
--- /dev/null
+++ b/.changes/1.9.0-b1.md
@@ -0,0 +1,42 @@
+## dbt-redshift 1.9.0-b1 - October 01, 2024
+
+### Features
+
+- Support IAM user auth via direct parameters, in addition to the existing profile method ([#760](https://github.com/dbt-labs/dbt-redshift/issues/760))
+- Add support for IAM Role auth ([#623](https://github.com/dbt-labs/dbt-redshift/issues/623))
+- Add tests for cross-database `cast` macro ([#804](https://github.com/dbt-labs/dbt-redshift/issues/804))
+- Cross-database `date` macro ([#808](https://github.com/dbt-labs/dbt-redshift/issues/808))
+- Remove `pg_catalog` from metadata queries ([#555](https://github.com/dbt-labs/dbt-redshift/issues/555))
+
+### Fixes
+
+- Stop adding aliases to subqueries when calling with `--empty` ([#782](https://github.com/dbt-labs/dbt-redshift/issues/782))
+- Support IAM Role authentication for Redshift Serverless ([#835](https://github.com/dbt-labs/dbt-redshift/issues/835))
+- Fix config change detection not working for multiple sortkey in materialized views ([#838](https://github.com/dbt-labs/dbt-redshift/issues/838))
+- update pin range for redshift-connector to allow 2.1.0 ([#844](https://github.com/dbt-labs/dbt-redshift/issues/844))
+- Handle unit test fixtures where typing goes wrong from first value in column being Null.  ([#821](https://github.com/dbt-labs/dbt-redshift/issues/821))
+- Fix materialized views comment syntax ([#837](https://github.com/dbt-labs/dbt-redshift/issues/837))
+- Support DROP CASCADE for materialized views; fixes bug that occurs when running dbt on materialized views that reference other materialized views ([#642](https://github.com/dbt-labs/dbt-redshift/issues/642))
+
+### Under the Hood
+
+- Lazy load agate ([#745](https://github.com/dbt-labs/dbt-redshift/issues/745))
+- Remove `freezegun` as a testing dependency; this package is no longer used ([#1136](https://github.com/dbt-labs/dbt-redshift/issues/1136))
+
+### Dependencies
+
+- Update freezegun requirement from ~=1.3 to ~=1.4 ([#695](https://github.com/dbt-labs/dbt-redshift/pull/695))
+- Bump dbt-labs/actions from 1.1.0 to 1.1.1 ([#762](https://github.com/dbt-labs/dbt-redshift/pull/762))
+- Bump actions/checkout from 3 to 4 ([#802](https://github.com/dbt-labs/dbt-redshift/pull/802))
+- Bump pre-commit from 3.7.0 to 3.7.1 ([#867](https://github.com/dbt-labs/dbt-redshift/pull/867))
+- Update tox requirement from ~=4.11 to ~=4.16 ([#870](https://github.com/dbt-labs/dbt-redshift/pull/870))
+- Update twine requirement from ~=4.0 to ~=5.1 ([#876](https://github.com/dbt-labs/dbt-redshift/pull/876))
+
+### Contributors
+- [@dwreeves](https://github.com/dwreeves) ([#745](https://github.com/dbt-labs/dbt-redshift/issues/745))
+- [@fleid](https://github.com/fleid) ([#835](https://github.com/dbt-labs/dbt-redshift/issues/835))
+- [@jeremyyeo](https://github.com/jeremyyeo) ([#837](https://github.com/dbt-labs/dbt-redshift/issues/837))
+- [@jiezhen-chen](https://github.com/jiezhen-chen) ([#555](https://github.com/dbt-labs/dbt-redshift/issues/555))
+- [@lvitti](https://github.com/lvitti) ([#838](https://github.com/dbt-labs/dbt-redshift/issues/838))
+- [@mikealfare,](https://github.com/mikealfare,) ([#555](https://github.com/dbt-labs/dbt-redshift/issues/555))
+- [@mikealfare,abbywh](https://github.com/mikealfare,abbywh) ([#623](https://github.com/dbt-labs/dbt-redshift/issues/623))
diff --git a/.changes/unreleased/Dependencies-20231219-192336.yaml b/.changes/1.9.0/Dependencies-20231219-192336.yaml
similarity index 100%
rename from .changes/unreleased/Dependencies-20231219-192336.yaml
rename to .changes/1.9.0/Dependencies-20231219-192336.yaml
diff --git a/.changes/unreleased/Dependencies-20240412-155445.yaml b/.changes/1.9.0/Dependencies-20240412-155445.yaml
similarity index 100%
rename from .changes/unreleased/Dependencies-20240412-155445.yaml
rename to .changes/1.9.0/Dependencies-20240412-155445.yaml
diff --git a/.changes/unreleased/Dependencies-20240429-192949.yaml b/.changes/1.9.0/Dependencies-20240429-192949.yaml
similarity index 100%
rename from .changes/unreleased/Dependencies-20240429-192949.yaml
rename to .changes/1.9.0/Dependencies-20240429-192949.yaml
diff --git a/.changes/unreleased/Dependencies-20240718-191611.yaml b/.changes/1.9.0/Dependencies-20240718-191611.yaml
similarity index 100%
rename from .changes/unreleased/Dependencies-20240718-191611.yaml
rename to .changes/1.9.0/Dependencies-20240718-191611.yaml
diff --git a/.changes/unreleased/Dependencies-20240718-191741.yaml b/.changes/1.9.0/Dependencies-20240718-191741.yaml
similarity index 100%
rename from .changes/unreleased/Dependencies-20240718-191741.yaml
rename to .changes/1.9.0/Dependencies-20240718-191741.yaml
diff --git a/.changes/unreleased/Dependencies-20240719-195946.yaml b/.changes/1.9.0/Dependencies-20240719-195946.yaml
similarity index 100%
rename from .changes/unreleased/Dependencies-20240719-195946.yaml
rename to .changes/1.9.0/Dependencies-20240719-195946.yaml
diff --git a/.changes/unreleased/Features-20240419-145208.yaml b/.changes/1.9.0/Features-20240419-145208.yaml
similarity index 100%
rename from .changes/unreleased/Features-20240419-145208.yaml
rename to .changes/1.9.0/Features-20240419-145208.yaml
diff --git a/.changes/unreleased/Features-20240425-011440.yaml b/.changes/1.9.0/Features-20240425-011440.yaml
similarity index 100%
rename from .changes/unreleased/Features-20240425-011440.yaml
rename to .changes/1.9.0/Features-20240425-011440.yaml
diff --git a/.changes/unreleased/Features-20240430-185708.yaml b/.changes/1.9.0/Features-20240430-185708.yaml
similarity index 100%
rename from .changes/unreleased/Features-20240430-185708.yaml
rename to .changes/1.9.0/Features-20240430-185708.yaml
diff --git a/.changes/unreleased/Features-20240501-151859.yaml b/.changes/1.9.0/Features-20240501-151859.yaml
similarity index 100%
rename from .changes/unreleased/Features-20240501-151859.yaml
rename to .changes/1.9.0/Features-20240501-151859.yaml
diff --git a/.changes/unreleased/Features-20240826-123954.yaml b/.changes/1.9.0/Features-20240826-123954.yaml
similarity index 100%
rename from .changes/unreleased/Features-20240826-123954.yaml
rename to .changes/1.9.0/Features-20240826-123954.yaml
diff --git a/.changes/unreleased/Fixes-20240423-131503.yaml b/.changes/1.9.0/Fixes-20240423-131503.yaml
similarity index 100%
rename from .changes/unreleased/Fixes-20240423-131503.yaml
rename to .changes/1.9.0/Fixes-20240423-131503.yaml
diff --git a/.changes/unreleased/Fixes-20240531-113620.yaml b/.changes/1.9.0/Fixes-20240531-113620.yaml
similarity index 100%
rename from .changes/unreleased/Fixes-20240531-113620.yaml
rename to .changes/1.9.0/Fixes-20240531-113620.yaml
diff --git a/.changes/unreleased/Fixes-20240610-104114.yaml b/.changes/1.9.0/Fixes-20240610-104114.yaml
similarity index 100%
rename from .changes/unreleased/Fixes-20240610-104114.yaml
rename to .changes/1.9.0/Fixes-20240610-104114.yaml
diff --git a/.changes/unreleased/Fixes-20240612-131752.yaml b/.changes/1.9.0/Fixes-20240612-131752.yaml
similarity index 100%
rename from .changes/unreleased/Fixes-20240612-131752.yaml
rename to .changes/1.9.0/Fixes-20240612-131752.yaml
diff --git a/.changes/unreleased/Fixes-20240625-170324.yaml b/.changes/1.9.0/Fixes-20240625-170324.yaml
similarity index 100%
rename from .changes/unreleased/Fixes-20240625-170324.yaml
rename to .changes/1.9.0/Fixes-20240625-170324.yaml
diff --git a/.changes/unreleased/Fixes-20240715-143507.yaml b/.changes/1.9.0/Fixes-20240715-143507.yaml
similarity index 100%
rename from .changes/unreleased/Fixes-20240715-143507.yaml
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diff --git a/.changes/unreleased/Fixes-20240906-102642.yaml b/.changes/1.9.0/Fixes-20240906-102642.yaml
similarity index 100%
rename from .changes/unreleased/Fixes-20240906-102642.yaml
rename to .changes/1.9.0/Fixes-20240906-102642.yaml
diff --git a/.changes/unreleased/Under the Hood-20240331-103115.yaml b/.changes/1.9.0/Under the Hood-20240331-103115.yaml
similarity index 100%
rename from .changes/unreleased/Under the Hood-20240331-103115.yaml
rename to .changes/1.9.0/Under the Hood-20240331-103115.yaml
diff --git a/.changes/unreleased/Under the Hood-20240719-133151.yaml b/.changes/1.9.0/Under the Hood-20240719-133151.yaml
similarity index 100%
rename from .changes/unreleased/Under the Hood-20240719-133151.yaml
rename to .changes/1.9.0/Under the Hood-20240719-133151.yaml
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 218a3de9..23cffbad 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,10 +5,52 @@
 - "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-redshift/blob/main/CONTRIBUTING.md#adding-changelog-entry)
 
+## dbt-redshift 1.9.0-b1 - October 01, 2024
+
+### Features
+
+- Support IAM user auth via direct parameters, in addition to the existing profile method ([#760](https://github.com/dbt-labs/dbt-redshift/issues/760))
+- Add support for IAM Role auth ([#623](https://github.com/dbt-labs/dbt-redshift/issues/623))
+- Add tests for cross-database `cast` macro ([#804](https://github.com/dbt-labs/dbt-redshift/issues/804))
+- Cross-database `date` macro ([#808](https://github.com/dbt-labs/dbt-redshift/issues/808))
+- Remove `pg_catalog` from metadata queries ([#555](https://github.com/dbt-labs/dbt-redshift/issues/555))
+
+### Fixes
+
+- Stop adding aliases to subqueries when calling with `--empty` ([#782](https://github.com/dbt-labs/dbt-redshift/issues/782))
+- Support IAM Role authentication for Redshift Serverless ([#835](https://github.com/dbt-labs/dbt-redshift/issues/835))
+- Fix config change detection not working for multiple sortkey in materialized views ([#838](https://github.com/dbt-labs/dbt-redshift/issues/838))
+- update pin range for redshift-connector to allow 2.1.0 ([#844](https://github.com/dbt-labs/dbt-redshift/issues/844))
+- Handle unit test fixtures where typing goes wrong from first value in column being Null.  ([#821](https://github.com/dbt-labs/dbt-redshift/issues/821))
+- Fix materialized views comment syntax ([#837](https://github.com/dbt-labs/dbt-redshift/issues/837))
+- Support DROP CASCADE for materialized views; fixes bug that occurs when running dbt on materialized views that reference other materialized views ([#642](https://github.com/dbt-labs/dbt-redshift/issues/642))
+
+### Under the Hood
+
+- Lazy load agate ([#745](https://github.com/dbt-labs/dbt-redshift/issues/745))
+- Remove `freezegun` as a testing dependency; this package is no longer used ([#1136](https://github.com/dbt-labs/dbt-redshift/issues/1136))
+
+### Dependencies
+
+- Update freezegun requirement from ~=1.3 to ~=1.4 ([#695](https://github.com/dbt-labs/dbt-redshift/pull/695))
+- Bump dbt-labs/actions from 1.1.0 to 1.1.1 ([#762](https://github.com/dbt-labs/dbt-redshift/pull/762))
+- Bump actions/checkout from 3 to 4 ([#802](https://github.com/dbt-labs/dbt-redshift/pull/802))
+- Bump pre-commit from 3.7.0 to 3.7.1 ([#867](https://github.com/dbt-labs/dbt-redshift/pull/867))
+- Update tox requirement from ~=4.11 to ~=4.16 ([#870](https://github.com/dbt-labs/dbt-redshift/pull/870))
+- Update twine requirement from ~=4.0 to ~=5.1 ([#876](https://github.com/dbt-labs/dbt-redshift/pull/876))
+
+### Contributors
+- [@dwreeves](https://github.com/dwreeves) ([#745](https://github.com/dbt-labs/dbt-redshift/issues/745))
+- [@fleid](https://github.com/fleid) ([#835](https://github.com/dbt-labs/dbt-redshift/issues/835))
+- [@jeremyyeo](https://github.com/jeremyyeo) ([#837](https://github.com/dbt-labs/dbt-redshift/issues/837))
+- [@jiezhen-chen](https://github.com/jiezhen-chen) ([#555](https://github.com/dbt-labs/dbt-redshift/issues/555))
+- [@lvitti](https://github.com/lvitti) ([#838](https://github.com/dbt-labs/dbt-redshift/issues/838))
+- [@mikealfare,](https://github.com/mikealfare,) ([#555](https://github.com/dbt-labs/dbt-redshift/issues/555))
+- [@mikealfare,abbywh](https://github.com/mikealfare,abbywh) ([#623](https://github.com/dbt-labs/dbt-redshift/issues/623))
+
+
 ## Previous Releases
 For information on prior major and minor releases, see their changelogs:
-- [1.8](https://github.com/dbt-labs/dbt-redshift/blob/1.8.latest/CHANGELOG.md)
-- [1.7](https://github.com/dbt-labs/dbt-redshift/blob/1.7.latest/CHANGELOG.md)
 - [1.6](https://github.com/dbt-labs/dbt-redshift/blob/1.6.latest/CHANGELOG.md)
 - [1.5](https://github.com/dbt-labs/dbt-redshift/blob/1.5.latest/CHANGELOG.md)
 - [1.4](https://github.com/dbt-labs/dbt-redshift/blob/1.4.latest/CHANGELOG.md)
diff --git a/dbt/adapters/redshift/__version__.py b/dbt/adapters/redshift/__version__.py
index 6698ed64..a4077fff 100644
--- a/dbt/adapters/redshift/__version__.py
+++ b/dbt/adapters/redshift/__version__.py
@@ -1 +1 @@
-version = "1.9.0a1"
+version = "1.9.0b1"
diff --git a/dbt/adapters/redshift/impl.py b/dbt/adapters/redshift/impl.py
index dd80a7f4..e0cefb98 100644
--- a/dbt/adapters/redshift/impl.py
+++ b/dbt/adapters/redshift/impl.py
@@ -78,7 +78,8 @@ def _behavior_flags(self) -> List[BehaviorFlag]:
                     "The dbt-redshift adapter is migrating from using pg_ tables "
                     "to using Redshift Metadata API and information_schema tables "
                     "in order to support additional Redshift functionalities.\n"
-                    "We do not expect this to impact your dbt experience."
+                    "We do not expect this to impact your dbt experience. "
+                    "Please report any issues using this GitHub discussion: https://github.com/dbt-labs/dbt-redshift/discussions/921"
                 ),
                 "docs_url": "https://docs.getdbt.com/reference/global-configs/behavior-changes#redshift-restrict_direct_pg_catalog_access",
             }
diff --git a/setup.py b/setup.py
index 712da387..4ff715f0 100644
--- a/setup.py
+++ b/setup.py
@@ -48,8 +48,8 @@ def _plugin_version() -> str:
     packages=find_namespace_packages(include=["dbt", "dbt.*"]),
     include_package_data=True,
     install_requires=[
-        "dbt-common>=0.1.0a1,<2.0",
-        "dbt-adapters>=0.1.0a1,<2.0",
+        "dbt-common>=1.10,<2.0",
+        "dbt-adapters>=1.7,<2.0",
         "dbt-postgres>=1.8,<1.10",
         # dbt-redshift depends deeply on this package. it does not follow SemVer, therefore there have been breaking changes in previous patch releases
         # Pin to the patch or minor version, and bump in each new minor version of dbt-redshift.