release branch for 25.12 release

diff --git a/.version b/.version
index 5247f42f..96e30f12 100644
--- a/.version
+++ b/.version
@@ -1 +1 @@
-v25.12rc3
+v25.12
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5b2cfe9f..99fd568c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,11 +4,9 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
-## [25.12rc2] - 2025-11-28: "Boltz's Seamless Upgrade Experience"
+## [25.12] - 2025-12-04: "Boltz's Seamless Upgrade Experience"
 
-Release Candidate for Core Lightning v25.12
-
-This release named by @sangbida
+This release is named by @sangbida
 
 ### Added
 
@@ -138,7 +136,7 @@ Note: You should always set `allow-deprecated-apis=false` to test for changes.
 [#8651]: https://github.com/ElementsProject/lightning/pull/8651
 [#8561]: https://github.com/ElementsProject/lightning/pull/8561
 [#8302]: https://github.com/ElementsProject/lightning/pull/8302
-[v25.12rc2]: https://github.com/ElementsProject/lightning/releases/tag/v25.12rc2
+[v25.12]: https://github.com/ElementsProject/lightning/releases/tag/v25.12
 
 
 ## [25.09.3] - 2025-11-06: "Hot Wallet Guardian IV"
diff --git a/contrib/pyln-client/pyln/client/__init__.py b/contrib/pyln-client/pyln/client/__init__.py
index 0e3a0b21..2e1effe1 100644
--- a/contrib/pyln-client/pyln/client/__init__.py
+++ b/contrib/pyln-client/pyln/client/__init__.py
@@ -4,7 +4,7 @@ from .gossmap import Gossmap, GossmapNode, GossmapChannel, GossmapHalfchannel, G
 from .gossmapstats import GossmapStats
 from .version import NodeVersion
 
-__version__ = "v25.12rc3"
+__version__ = "v25.12"
 
 __all__ = [
     "LightningRpc",
diff --git a/contrib/pyln-client/pyproject.toml b/contrib/pyln-client/pyproject.toml
index 8e6a6eb2..6820ec73 100644
--- a/contrib/pyln-client/pyproject.toml
+++ b/contrib/pyln-client/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "pyln-client"
-version = "v25.12rc3"
+version = "v25.12"
 description = "Client library and plugin library for Core Lightning"
 authors = [{ name = "Christian Decker", email = "decker.christian@gmail.com" }]
 license = { text = "BSD-MIT" }
diff --git a/contrib/pyln-proto/pyln/proto/__init__.py b/contrib/pyln-proto/pyln/proto/__init__.py
index 1ab75543..39548e51 100644
--- a/contrib/pyln-proto/pyln/proto/__init__.py
+++ b/contrib/pyln-proto/pyln/proto/__init__.py
@@ -4,7 +4,7 @@ from .invoice import Invoice
 from .onion import OnionPayload, TlvPayload, LegacyOnionPayload
 from .wire import LightningConnection, LightningServerSocket
 
-__version__ = "v25.12rc3"
+__version__ = "v25.12"
 
 __all__ = [
     "Invoice",
diff --git a/contrib/pyln-proto/pyproject.toml b/contrib/pyln-proto/pyproject.toml
index 5fba9182..6c89e04f 100644
--- a/contrib/pyln-proto/pyproject.toml
+++ b/contrib/pyln-proto/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "pyln-proto"
-version = "v25.12rc3"
+version = "v25.12"
 description = "This package implements some of the Lightning Network protocol in pure python. It is intended for protocol testing and some minor tooling only. It is not deemed secure enough to handle any amount of real funds (you have been warned!)."
 authors = [
     {name = "Christian Decker", email = "decker.christian@gmail.com"}
diff --git a/contrib/pyln-testing/pyln/testing/__init__.py b/contrib/pyln-testing/pyln/testing/__init__.py
index b51cd21b..0c7f3eec 100644
--- a/contrib/pyln-testing/pyln/testing/__init__.py
+++ b/contrib/pyln-testing/pyln/testing/__init__.py
@@ -1,4 +1,4 @@
-__version__ = "v25.12rc3"
+__version__ = "v25.12"
 
 __all__ = [
     "__version__",
diff --git a/contrib/pyln-testing/pyproject.toml b/contrib/pyln-testing/pyproject.toml
index 87df3faa..e942e5e0 100644
--- a/contrib/pyln-testing/pyproject.toml
+++ b/contrib/pyln-testing/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "pyln-testing"
-version = "v25.12rc3"
+version = "v25.12"
 description = "Test your Core Lightning integration, plugins or whatever you want"
 authors = [{ name = "Christian Decker", email = "decker.christian@gmail.com" }]
 license = { text = "BSD-MIT" }
diff --git a/tools/reckless b/tools/reckless
index 4834f601..62a917b6 100755
--- a/tools/reckless
+++ b/tools/reckless
@@ -21,7 +21,7 @@ from urllib.error import HTTPError
 import venv
 
 
-__VERSION__ = 'v25.12rc3'
+__VERSION__ = 'v25.12'
 
 logging.basicConfig(
     level=logging.INFO,
diff --git a/uv.lock b/uv.lock
index 9db2982a..6b57a107 100644
--- a/uv.lock
+++ b/uv.lock
@@ -1355,7 +1355,7 @@ dev = [{ name = "pyln-proto", editable = "contrib/pyln-proto" }]
 
 [[package]]
 name = "pyln-client"
-version = "25.12rc3"
+version = "25.12"
 source = { editable = "contrib/pyln-client" }
 dependencies = [
     { name = "pyln-bolt7" },
@@ -1413,7 +1413,7 @@ dev = [
 
 [[package]]
 name = "pyln-proto"
-version = "25.12rc3"
+version = "25.12"
 source = { editable = "contrib/pyln-proto" }
 dependencies = [
     { name = "base58" },
@@ -1442,7 +1442,7 @@ dev = [{ name = "pytest", specifier = ">=8.0.0" }]
 
 [[package]]
 name = "pyln-testing"
-version = "25.12rc3"
+version = "25.12"
 source = { editable = "contrib/pyln-testing" }
 dependencies = [
     { name = "cheroot" },