diff --git a/.mergify.yml b/.mergify.yml
index 80346d9b03d0..0f32d2895772 100644
--- a/.mergify.yml
+++ b/.mergify.yml
@@ -6,4 +6,4 @@ pull_request_rules:
     actions:
       backport:
         branches:
-          - stable/0.25
+          - stable/0.45
diff --git a/Cargo.lock b/Cargo.lock
index 866c920c7ab6..11a06e6855ac 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -393,7 +393,7 @@ dependencies = [
 
 [[package]]
 name = "qiskit-qasm2"
-version = "0.45.0"
+version = "1.0.0"
 dependencies = [
  "hashbrown 0.14.0",
  "pyo3",
@@ -401,7 +401,7 @@ dependencies = [
 
 [[package]]
 name = "qiskit_accelerate"
-version = "0.45.0"
+version = "1.0.0"
 dependencies = [
  "ahash",
  "hashbrown 0.14.0",
diff --git a/Cargo.toml b/Cargo.toml
index 1f3b4f7c344f..19e1c48231f1 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -2,7 +2,7 @@
 members = ["crates/*"]
 
 [workspace.package]
-version = "0.45.0"
+version = "1.0.0"
 edition = "2021"
 rust-version = "1.64"  # Keep in sync with README.md and rust-toolchain.toml.
 license = "Apache-2.0"
diff --git a/docs/conf.py b/docs/conf.py
index 58d5dc1b17bd..38b080208f3b 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -27,9 +27,9 @@
 author = "Qiskit Development Team"
 
 # The short X.Y version
-version = "0.45"
+version = "1.0"
 # The full version, including alpha/beta/rc tags
-release = "0.45.0"
+release = "1.0.0"
 
 language = "en"
 
@@ -286,21 +286,9 @@ def determine_api_redirects() -> dict[str, str]:
 def add_versions_to_config(_app, config):
     """Add a list of old documentation versions that should have links generated to them into the
     context, so the theme can use them to generate a sidebar."""
-    # First 0.x version where Qiskit/Terra and the metapackage aligned on number.
-    first_unified_zero_minor = 45
-
-    # Start with the hardcoded versions of the documentation that were managed while the metapackage
-    # still existed, so are based on tags that don't exist in the Qiskit package repo.
-    versions = ["0.19"] + [f"0.{x}" for x in range(24, first_unified_zero_minor)]
-
-    proc = subprocess.run(["git", "describe", "--abbrev=0"], capture_output=True, check=True)
-    current_version = proc.stdout.decode("utf8")
-    current_version_info = current_version.split(".")
-    if current_version_info[0] != "0":
-        raise Exception("TODO: handle major versions")
-    versions.extend(
-        f"0.{x}" % x for x in range(first_unified_zero_minor, int(current_version_info[1]) + 1)
-    )
+    # For qiskit 1.0 the docs won't use this mechanism anymore
+    # so just build out the historical version list for the 0.x series
+    versions = ["0.19"] + [f"0.{x}" for x in range(24, 46)]
     config.html_context["version_list"] = versions
 
 
diff --git a/qiskit/VERSION.txt b/qiskit/VERSION.txt
index 27edeeb5c031..3eefcb9dd5b3 100644
--- a/qiskit/VERSION.txt
+++ b/qiskit/VERSION.txt
@@ -1 +1 @@
-0.45.0rc1
+1.0.0
diff --git a/qiskit_pkg/setup.py b/qiskit_pkg/setup.py
index 6148d3d8a965..4846b2d0b9f6 100644
--- a/qiskit_pkg/setup.py
+++ b/qiskit_pkg/setup.py
@@ -26,11 +26,11 @@
 with open(README_PATH) as readme_file:
     README = readme_file.read()
 
-requirements = ["qiskit-terra==0.45.0rc1"]
+requirements = ["qiskit-terra==1.0.0"]
 
 setup(
     name="qiskit",
-    version="0.45.0rc1",
+    version="1.0.0",
     description="Software for developing quantum computing programs",
     long_description=README,
     long_description_content_type="text/markdown",