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2 changes: 1 addition & 1 deletion documentation/index.md
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* [HDF User's Guide](https://zenodo.org/records/13310689)
* [HDF Specification and Developer's Guide](https://zenodo.org/records/13310722)
* [Build and Install HDF4 Applications with CMake](https://github.com/HDFGroup/hdf4/blob/master/release_docs/USING_HDF4_CMake.txt)
* [Build and Install HDF4 C, C++, Fortran Libraries and tools with CMake](https://github.com/HDFGroup/hdf4/blob/master/release_docs/INSTALL_CMake.txt)
* [Build and Install HDF4 C and Fortran Libraries and tools with CMake](https://github.com/HDFGroup/hdf4/blob/master/release_docs/INSTALL_CMake.txt)
* [HDF 4.2 to 4.3 Migration Guide](https://github.com/HDFGroup/hdf4/blob/master/doc/HDF-4.2-to-4.3-migration.md)

## h4h5Tools
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43 changes: 43 additions & 0 deletions downloads/hdfview/hdfview3_4_0.md
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---
title: HDFView 3.4.0
---

<img alt="HDFView Logo" align=right width=300 src="/assets/img/hdfview.png">

# HDFView 3.4.0

## Release Information

| Version | HDFView 3.4.0 |
| Release Date | 12/31/2025 |
| Additional Release Information | [Release Notes](https://github.com/HDFGroup/hdfview/blob/v3.4.0/docs/RELEASE.txt) |
| | [Release Announcement](https://www.hdfgroup.org/) |
| | [Known Problems](#known-problems-in-this-release) |

## Documentation

| File | Type |
| ---- | ---- |
| [UsersGuide.tar.gz](https://github.com/HDFGroup/hdfview/releases/download/v3.4.0/UsersGuide.tar.gz) | Documentation (HTML, Unix) |
| [UsersGuide.zip](https://github.com/HDFGroup/hdfview/releases/download/v3.4.0/UsersGuide.zip) | Documentation (HTML, Windows) |

## Download

HDFView 3.4.0 source and binaries are available [here](https://github.com/HDFGroup/hdfview/releases/tag/v3.4.0)

HDFView 3.4.0 was built and tested with HDF5-2.0.0, HDF 4.3.1, and openjdk 21.

This release provides two ways to install the HDFView pre-built binary distribution for a platform:
* Using an application image. This method simply requires running the provided executable to obtain the software.
* Running an installer. This method runs an installer (eg .exe) that sets up file associations and menu items.

Once you have uncompressed the downloaded pre-built binary file, refer to the provided README file for details.

See Known Problems if you encounter any issues.

## Known Problems In This Release

* Workaround for issue with launching HDFView: A path issue which causes HDFView to fail to launch can be resolved by using the included batch script in the binary under the app folder.
* If installing HDFView with the installer method, please be aware that the installer does NOT overwrite "hardcoded" associations. If there is a pre-existing user-defined file association, you must manually associate the extension with the HDFView application.

Please see the [Release Notes](https://github.com/HDFGroup/hdfview/blob/v3.4.0/docs/RELEASE.txt) for more information on known problems.
1 change: 1 addition & 0 deletions downloads/index.md
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| Version | Usage |
| ---- | ----|
| [HDF5 2.0.0](https://support.hdfgroup.org/documentation/hdf5/latest/rel_spec_20.html) | Most recent HDF5 library version. |
| [HDF5 1.14.6](https://support.hdfgroup.org/documentation/hdf5/latest/rel_spec_114.html) | Last release of the 1.14.x series |

## HDFView

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