As of today, it's been two years that RawTherapee has been free open source software and it has grown tremendously! Here is a video which visualizes progress on RawTherapee during these two years, from the 1st of January 2010 till now, the 1st of January, 2012, and some statistics. Enjoy!

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You can download our English and translated RawTherapee manuals in the PDF format from these links:...

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The following changelog details a list of items that have been fixed and/or implemented in the development branch of RawTherapee from the 31st of July till the 31st of August, 2011:

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RawTherapee features some memory-intensive filters, which means you need to be aware of a few things in order to avoid having memory issues. These issues, such as program crashes, are most evident if you use a 32 bit version of Windows, although they apply to other operating systems as well, and may become evident if you have 2GB of RAM or less. ...

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We have repeatedly decided to push back the release of the version we would call 3.0 in order to deliver a program that you can expect the best quality and optimal speed from, one you can entrust your photos with and rely upon. During this time many...

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High Image Quality

• Get the most details and least artifacts from your raw photos thanks to modern and traditional demosaicing algorithms: AMaZE, DCB, fast, AHD, EAHD, HPHD & VNG4.
• Advanced color handling from white balance to HSV (Hue-Saturation-Value) curves and color management.
• Enhanced exposure and tonality tools: tone and Lab curves, highlights and shadows tools, etc.
  
• Multiple denoising methods: luminance, chrominance, impulse (for salt and pepper noise) noise reduction.
• Several tools to enhance details: unsharp mask, RL deconvolution, contrast by detail levels.

Efficiency

• Multi-threaded algorithms for high performance (RawTherapee can utilize modern processor features).
• Quick thumbnails load lightning fast and are replaced later with live thumbnails
• Batch processing: convert all the developed images at once without not loading the processor while you work.
  
• Basic tools immediately at your hands.
• Parallel editing of multiple images.
• An optional secondary display can be used.

Versatility

• Wide variety of supported cameras: almost all DSLRs and even some medium format bodies are supported.
• Advanced control over the algorithms with many fine-tuning parameters.
• Command line usage besides the normal graphical interface.
  
• Various layouts: multiple tabs, single tab with filmstrip, vertical tab with filmstrip.

Freedom for Free

• RawTherapee is free and open source software, meaning you can use it free of charge, wherever you like on whatever hardware you like, as long as you abide by the copyleft GPLv3 license. Download the source code, modify it, feel free to do what comes to mind. We believe in open software.
• RT is cross-platform: Linux, Mac, or Windows, be it 32-bit or 64-bit - you pick, we provide.
• International: it is available in 25 languages!

If you want to understand how to work with Raw Therapee even better, we recommend to read the users manual. You can download it in PDF format:

• Users Manual for RT v2.4 (english), last change: 2009-09-04
• Manuel pour RT v2.4 (french), last change: 2009-09-20, write errors corrected
• Benutzerhandbuch für RT v2.4.1 (german), last change: 2009-10-21
• Manuale dell'utente di RT 2.4 (italian), last change 2009-02-08
• Japanese Users Manual for RT v.2.4 (japanese), new: 2009-07-27
• Handleiding RT 2.4 (netherlands), last change 2009-09-04, updated for 2.4.1

Here are some additonal...

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