diff --git a/CHANGELOG.md b/CHANGELOG.md
index 784b036ee7..b39f7810fe 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,39 @@ and this project uses `yyyy.rr[.pp]`, where `yyyy` is the year a patch is releas
 `rr` is a sequential release number (starting from `01`), and an optional two-digit
 sequential patch number (starting from `01`).
 
+## [2020.03] - 2020-10-08
+### Added
+- FMS2_IO: Adds header_buffer_val to the fms2io namelist which sets the netcdf header size in bytes. The default value is 16kb
+- FMS2_IO: Adds netcdf_default_format to the fms2io namelist which allows the user to change the netcdf file type. The default value is 64bit.
+- FMS2_IO: Adds support to read netcdf string global attributes
+- FMS2_IO: Adds an optional argument to open_file, `dont_add_res_to_filename`, which indicates that the filename should not be modified (default adds .res to restart file name)
+- FMS2_IO: Modifies the `register_variable_attribute` and `register_global_attribute` interfaces by adding str_len as an argument. This is a workaround to get fms2io to work with PGI because they don't support class (*) with len=*.
+- FMS2_IO: Adds unit test that tests `write_data` and `read_data` when using a domain with a mask table 
+- FMS2_IO: Adds fms2io’s version of get_mosaic_tile_grid
+- MPP_IO: Adds `-Duse_mpp_io` compile option for data_override, interpolator, amip_interp, diag_manager, topography, and xgrid to select using mpp_io instead of fms2_io
+- MPP_INIT: Adds unit tests for routines/functions that are called in mpp_init
+- CMAKE: A cmake build system has been added with a CI build using cmake
+### Changed
+- FMS2_IO: Improves performance of previous release by gathering the domain decomposed data into one global buffer and doing one write rather than doing multiple reads
+- DATA_OVERRIDE: Changes line in time_interp_external2 to enable 3D overrides
+
+### Fixed
+- DATA_OVERRIDE[2]: Fixes a crash when doing ongrid data_override calls with a domain with halos
+- DIAG_MANAGER[2]: Fixes an issue where time_bnds were written incorrectly for the last time stamp 
+- DIAG_MANAGER: Regional diagnostics with a mask table now work
+- FMS2_IO: Unit test includes fms2io_init call to improve functionality 
+- MPP: BOZ literals that are used in variable declaration are converted to integers using the int() function.
+- MPP_DOMAINS2: Fixed unit test
+- FMS_IO: Changes the logic in get_tile_string to fix bug where tile numbers 9 and 99 produce an inappropriate error
+
+### Tag Commit Hashes
+- 2020.03-beta4 (4d38679c1e18e920feb03d69f8a9762eb6a047aa)
+- 2020.03-beta3 (521a15135a99d1f2da7d82f238353945f82ce1dd)
+- 2020.03-beta2 (3dae0dfa405d555ecc09bbd2d60a1be24461f69e)
+- 2020.03-beta1 (f7f1c1c73c1f478a53e84caee6aff2fa840ad086)
+- 2020.03-alpha1 (2dd30b7ca0ac75a4a38b969e4a6d446eb395b4dd)
+
+
 ## [2020.02] - 2020-05-01
 ### Added
 - FMS2_IO:  An fms2_io_nml namelist has been created.  It includes the variable ncchksz. This is the replacement for the environment variable NC_BLKSZ set in model run scripts and used by mpp_io.  The default value is 64 KB.  Any time a file is opened in fms2_io (nf90_open or nf90_create), the optional argument `chunksize=ncchksz` is passed to the NetCDF library.  NetCDF attempts to use this value to control the blocksize utilized for reads and writes of data from the filesystem.
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6b30f670b4..7fc27f48d2 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -23,7 +23,7 @@ cmake_minimum_required(VERSION 3.7...3.15 FATAL_ERROR)
 
 # Define the CMake project
 project(FMS
-  VERSION 2020.02
+  VERSION 2020.03
   DESCRIPTION  "GFDL FMS Library"
   HOMEPAGE_URL "https://www.gfdl.noaa.gov/fms"
   LANGUAGES C Fortran)
diff --git a/configure.ac b/configure.ac
index eb32bc80cd..427f0eb314 100644
--- a/configure.ac
+++ b/configure.ac
@@ -25,7 +25,7 @@ AC_PREREQ([2.59])
 
 # Initialize with name, version, and support email address.
 AC_INIT([GFDL FMS Library],
-  [2020.02-dev],
+  [2020.03],
   [gfdl.climate.model.info@noaa.gov],
   [FMS],
   [https://www.gfdl.noaa.gov/fms])
diff --git a/libFMS/Makefile.am b/libFMS/Makefile.am
index 523e576406..2d2fdf24fe 100644
--- a/libFMS/Makefile.am
+++ b/libFMS/Makefile.am
@@ -28,7 +28,7 @@ lib_LTLIBRARIES = libFMS.la
 # These linker flags specify libtool version info.
 # See http://www.gnu.org/software/libtool/manual/libtool.html#Libtool-versioning
 # for information regarding incrementing `-version-info`.
-libFMS_la_LDFLAGS = -version-info 4:0:0
+libFMS_la_LDFLAGS = -version-info 5:0:0
 
 # Add the convenience libraries to the FMS library.
 libFMS_la_LIBADD = ${top_builddir}/platform/libplatform.la