diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6f486f35..e9455051 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,24 @@
 
 All versions are tagged by the major Postgres version, plus an individual semver for this library itself.
 
+## 16-5.1.0   2024-01-08
+
+* Add support for compiling on Windows
+  - In order to build on Windows when using MSVC, use the new "Makefile.msvc"
+    with nmake, or directly compile all .c files in the src folder into a library
+  - If compiling directly, add src/postgres/include/port/win32 to the include path,
+    and when using MSVC also add src/postgres/include/port/win32_msvc
+* Add support for compiling on 32-bit systems
+  - The relevant code is enabled at compile time by checking the pointer
+    size (__SIZEOF_POINTER__ == 4)
+* Move internal headers and included .c files to src/include folder
+  - This avoids having any .c files in the top-level src/ folder that can't
+    be directly compiled, and thus lets us simplify the logic for defining
+    which source units are to be compiled.
+* Remove strnlen fallback implementation
+* Avoid use of mmap, asprintf and strndup to improve portability
+* Improve compatibility with non-POSIX systems and C89 compilers
+
 ## 16-5.0.0   2023-12-22
 
 * Update to Postgres 16.1
diff --git a/Makefile b/Makefile
index 7893c50c..618badec 100644
--- a/Makefile
+++ b/Makefile
@@ -11,7 +11,7 @@ PG_VERSION_MAJOR = $(call word-dot,$(PG_VERSION),1)
 PG_VERSION_NUM = 160001
 PROTOC_VERSION = 25.1
 
-VERSION = 5.0.0
+VERSION = 5.1.0
 VERSION_MAJOR = $(call word-dot,$(VERSION),1)
 VERSION_MINOR = $(call word-dot,$(VERSION),2)
 VERSION_PATCH = $(call word-dot,$(VERSION),3)
diff --git a/README.md b/README.md
index d3a330ca..c2de4cd8 100644
--- a/README.md
+++ b/README.md
@@ -21,6 +21,12 @@ Due to compiling parts of PostgreSQL, running `make` will take a bit. Expect up
 
 For a production build, its best to use a specific git tag (see CHANGELOG).
 
+When compiling on Windows with Visual Studio, instead use `nmake` with the `Makefile.msvc`:
+
+```sh
+nmake /F Makefile.msvc
+```
+
 
 ## Usage: Parsing a query