diff --git a/documentation/index.md b/documentation/index.md
index 9347d00b..dec8b479 100644
--- a/documentation/index.md
+++ b/documentation/index.md
@@ -26,6 +26,7 @@ Can't find what you're looking for? Visit [docs.hdfgroup.org](https://docs.hdfgr
 * [HDF4 Specification and Developers Guide](https://github.com/HDFGroup/hdf4doc/blob/master/DSpec/html_FM/DS.pdf) 
 * [Build and Install HDF4 Applications with CMake](https://raw.githubusercontent.com/HDFGroup/hdf4/master/release_notes/USING_HDF4_CMake.txt)
 * [Build and Install HDF4 C, C++, Fortran Libraries and tools with CMake](https://raw.githubusercontent.com/HDFGroup/hdf4/master/release_notes/INSTALL_CMake.txt)
+* [HDF 4.2 to 4.3 Migration Guide](https://raw.githubusercontent.com/HDFGroup/hdf4/master/doc/HDF-4.2-to-4.3-migration.md) 
 
 ### h4h5Tools
 * [Mapping HDF4 Objects to HDF5 Objects](https://docs.hdfgroup.org/archive/support/HDF5/doc/ADGuide/H4toH5Mapping.pdf) 
diff --git a/downloads/hdf5/hdf5_1_12_3.md b/downloads/hdf5/hdf5_1_12_3.md
index ba7966f7..de99fb4f 100644
--- a/downloads/hdf5/hdf5_1_12_3.md
+++ b/downloads/hdf5/hdf5_1_12_3.md
@@ -25,7 +25,7 @@ title: HDF5 Library and Tools 1.12.3
 | File | Type | Install Instructions |
 | ---- | ---- | ---- | 
 | [hdf5-1.12.3.tar.gz](https://hdf-wordpress-1.s3.amazonaws.com/wp-content/uploads/manual/HDF5/HDF5_1_12_3/src/hdf5-1.12.3.tar.gz) <br>([sha256](https://hdf-wordpress-1.s3.amazonaws.com/wp-content/uploads/manual/HDF5/HDF5_1_12_3/src/hdf5-1.12.3.tar.gz.sha256)) | Source Release | Unix Gzipped source tar file. <br>See Methods to obtain (below).<br>See warning below about autotools builds. <br> release_docs/ directory in source | 
-| [hdf5-1.12.3.tar.bz2](https://hdf-wordpress-1.s3.amazonaws.com/wp-content/uploads/manual/HDF5/HDF5_1_12_3/src/hdf5-1.12.3.tar.bz2.sha256) <br> ([sha256](https://hdf-wordpress-1.s3.amazonaws.com/wp-content/uploads/manual/HDF5/HDF5_1_12_3/src/hdf5-1.12.3.tar.bz2.sha256)) |  Source Release | Unix Gzipped source tar file. <br>See warning below about autotools builds. <br> release_docs/ directory in source |
+| [hdf5-1.12.3.tar.bz2](https://hdf-wordpress-1.s3.amazonaws.com/wp-content/uploads/manual/HDF5/HDF5_1_12_3/src/hdf5-1.12.3.tar.bz2) <br> ([sha256](https://hdf-wordpress-1.s3.amazonaws.com/wp-content/uploads/manual/HDF5/HDF5_1_12_3/src/hdf5-1.12.3.tar.bz2.sha256)) |  Source Release | Unix Gzipped source tar file. <br>See warning below about autotools builds. <br> release_docs/ directory in source |
 | [hdf5-1.12.3.zip](https://hdf-wordpress-1.s3.amazonaws.com/wp-content/uploads/manual/HDF5/HDF5_1_12_3/src/hdf5-1.12.3.zip) <br> ([sha256](https://hdf-wordpress-1.s3.amazonaws.com/wp-content/uploads/manual/HDF5/HDF5_1_12_3/src/hdf5-1.12.3.zip.sha256)) |  Source Release | Windows zip file <br> release_docs/ directory in source | 
 | [CMake-hdf5-1.12.3.tar.gz](https://hdf-wordpress-1.s3.amazonaws.com/wp-content/uploads/manual/HDF5/HDF5_1_12_3/src/CMake-hdf5-1.12.3.tar.gz) <br> ([sha256](https://hdf-wordpress-1.s3.amazonaws.com/wp-content/uploads/manual/HDF5/HDF5_1_12_3/src/CMake-hdf5-1.12.3.tar.gz.sha256)) | CMake Source Release | [Building HDF5 with CMake](https://raw.githubusercontent.com/HDFGroup/hdf5/hdf5_1_12_3/release_docs/INSTALL_CMake.txt) |
 | [CMake-hdf5-1.12.3.zip](https://hdf-wordpress-1.s3.amazonaws.com/wp-content/uploads/manual/HDF5/HDF5_1_12_3/src/CMake-hdf5-1.12.3.zip) <br> ([sha256](https://hdf-wordpress-1.s3.amazonaws.com/wp-content/uploads/manual/HDF5/HDF5_1_12_3/src/CMake-hdf5-1.12.3.zip.sha256)) | CMake Source Release | [Building HDF5 with CMake](https://raw.githubusercontent.com/HDFGroup/hdf5/hdf5_1_12_3/release_docs/INSTALL_CMake.txt) |  |
diff --git a/hdf4/index.md b/hdf4/index.md
index 8c498903..91bfb0f0 100644
--- a/hdf4/index.md
+++ b/hdf4/index.md
@@ -12,7 +12,11 @@ HDF4 (also known as HDF) is a library and multi-object file format for storing a
 
 Although The HDF Group maintains HDF4 by fixing defects and porting it to new operating environments, there is no longer any new development occurring. HDF4 is considered deprecated and new products should be developed in [HDF5](https://www.hdfgroup.org/solutions/hdf5/).  
 
-## Other Information
+## Documentation 
+
+Current documentation can be found at [https://portal.hdfgroup.org/documentation/index.html#hdf4](https://portal.hdfgroup.org/documentation/index.html#hdf4). More information coming soon.
+
+## Other Information - In Progress
 * What is HDF4?
 * HDF4 Examples
 * HDF4 Tools