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# LLVM 3.4 Release Notes

- Introduction
- Non-comprehensive list of changes in this release
- External Open Source Projects Using LLVM 3.4
- Additional Information

Warning

These are in-progress notes for the upcoming LLVM 3.4 release. You may prefer the LLVM 3.3 Release Notes.

## Introduction

This document contains the release notes for the LLVM Compiler Infrastructure, release 3.4. Here we describe the status of LLVM, including major improvements from the previous release, improvements in various subprojects of LLVM, and some of the current users of the code. All LLVM releases may be downloaded from the LLVM releases web site.

For more information about LLVM, including information about the latest release, please check out the main LLVM web site. If you have questions or comments, the LLVM Developer’s Mailing List is a good place to send them.

Note that if you are reading this file from a Subversion checkout or the main LLVM web page, this document applies to the next release, not the current one. To see the release notes for a specific release, please see the releases page.

## Non-comprehensive list of changes in this release

- Support for exception handling has been removed from the old JIT. Use MCJIT if you need EH support.
- The R600 backend is not marked experimental anymore and is built by default.
- ... next change ...

## External Open Source Projects Using LLVM 3.4

An exciting aspect of LLVM is that it is used as an enabling technology for a lot of other language and tools projects. This section lists some of the projects that have already been updated to work with LLVM 3.4.

## Additional Information

A wide variety of additional information is available on the LLVM web page, in particular in the documentation section. The web page also contains versions of the API documentation which is up-to-date with the Subversion version of the source code. You can access versions of these documents specific to this release by going into the `llvm/docs/` directory in the LLVM tree.

If you have any questions or comments about LLVM, please feel free to contact us via the mailing lists.

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