diff --git a/CHANGELOG.md b/CHANGELOG.md
index adce52c1ee..00f1c3dfa2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,16 @@
 # Changelog
 
+## [v4.12.0](https://github.com/swift-nav/libsbp/tree/v4.12.0) (2023-02-27)
+
+[Full Changelog](https://github.com/swift-nav/libsbp/compare/v4.11.0...v4.12.0)
+
+**Merged pull requests:**
+
+- Auto submodule update: cmake - Exclude unit test header files from coverage reporting \(\#145\) [\#1295](https://github.com/swift-nav/libsbp/pull/1295) ([swiftnav-svc-jenkins](https://github.com/swiftnav-svc-jenkins))
+- make it so all .rs files are treated as text files for git diffs [\#1294](https://github.com/swift-nav/libsbp/pull/1294) ([pcrumley](https://github.com/pcrumley))
+- new rust clippy [\#1292](https://github.com/swift-nav/libsbp/pull/1292) ([adrian-kong](https://github.com/adrian-kong))
+- Add support for murata scha634 to imu aux message [\#1286](https://github.com/swift-nav/libsbp/pull/1286) ([antrikshsrivastava](https://github.com/antrikshsrivastava))
+
 ## [v4.11.0](https://github.com/swift-nav/libsbp/tree/v4.11.0) (2023-01-25)
 
 [Full Changelog](https://github.com/swift-nav/libsbp/compare/v4.10.0...v4.11.0)
diff --git a/c/include/libsbp/version.h b/c/include/libsbp/version.h
index 9234f4cac5..ed5c38fb69 100644
--- a/c/include/libsbp/version.h
+++ b/c/include/libsbp/version.h
@@ -28,7 +28,7 @@
 #define SBP_PATCH_VERSION 0
 
 /** Full SBP version string. */
-#define SBP_VERSION "4.12.0"
+#define SBP_VERSION "4.12.1-alpha"
 
 /** Is this a staging branch? */
 #define SBP_STAGING 0
diff --git a/docs/sbp.pdf b/docs/sbp.pdf
index 338af3e2aa..894d2152f6 100644
Binary files a/docs/sbp.pdf and b/docs/sbp.pdf differ
diff --git a/haskell/sbp.cabal b/haskell/sbp.cabal
index 59a444b8b5..bcd678a702 100644
--- a/haskell/sbp.cabal
+++ b/haskell/sbp.cabal
@@ -1,5 +1,5 @@
 name:                  sbp
-version:               4.12.0
+version:               4.12.1-alpha
 synopsis:              SwiftNav's SBP Library
 homepage:              https://github.com/swift-nav/libsbp
 license:               MIT
diff --git a/javascript/sbp/RELEASE-VERSION b/javascript/sbp/RELEASE-VERSION
index bcd250ed08..a7d8dde671 100644
--- a/javascript/sbp/RELEASE-VERSION
+++ b/javascript/sbp/RELEASE-VERSION
@@ -1 +1 @@
-4.12.0
\ No newline at end of file
+4.12.1-alpha
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
index 28b66260a8..2a2328a85d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "sbp",
-  "version": "4.12.0",
+  "version": "4.12.1-alpha",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "sbp",
-      "version": "4.12.0",
+      "version": "4.12.1-alpha",
       "license": "MIT",
       "dependencies": {
         "binary-parser": "^1.7.0",
diff --git a/package.json b/package.json
index 3c119517e0..526dae40bc 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "sbp",
-  "version": "4.12.0",
+  "version": "4.12.1-alpha",
   "description": "libsbp bindings for JavaScript. More information here: http://swift-nav.github.io/libsbp/",
   "files": [
     "javascript/*",
diff --git a/python/sbp/RELEASE-VERSION b/python/sbp/RELEASE-VERSION
index bcd250ed08..a7d8dde671 100644
--- a/python/sbp/RELEASE-VERSION
+++ b/python/sbp/RELEASE-VERSION
@@ -1 +1 @@
-4.12.0
\ No newline at end of file
+4.12.1-alpha
\ No newline at end of file
diff --git a/rust/sbp/Cargo.toml b/rust/sbp/Cargo.toml
index 55154e4608..3498feb1dc 100644
--- a/rust/sbp/Cargo.toml
+++ b/rust/sbp/Cargo.toml
@@ -7,7 +7,7 @@
 
 [package]
 name = "sbp"
-version = "4.12.0"
+version = "4.12.1-alpha"
 description = "Rust native implementation of SBP (Swift Binary Protocol) for communicating with devices made by Swift Navigation"
 authors = ["Swift Navigation <dev@swiftnav.com>"]
 repository = "https://github.com/swift-nav/libsbp"
diff --git a/rust/sbp2json/Cargo.toml b/rust/sbp2json/Cargo.toml
index d0ec8c3aa4..2169db2413 100644
--- a/rust/sbp2json/Cargo.toml
+++ b/rust/sbp2json/Cargo.toml
@@ -7,7 +7,7 @@
 
 [package]
 name = "sbp2json"
-version = "4.12.0-unreleased"
+version = "4.12.1-alpha"
 description = "Rust native implementation of SBP (Swift Binary Protocol) to JSON conversion tools"
 authors = ["Swift Navigation <dev@swiftnav.com>"]
 edition = "2018"