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Siril 0.9.0

Release date: Oct 28, 2015.

This release is the first stable version of Siril. Its SVN revision is 1037, but it also has an SVN tag: 0.9.0. Stability updates and minor improvements will occur in the dedicated 0.9 branch.


See the installation page for help on dependencies and compilation.

For people who want using Siril on Windows, it is possible with a virtual machine. This file explains how to do it.

What's new in Siril 0.9.0

Siril 0.9.0 is the first stable of the new version (2012-2015) of Siril. Contrary to the name of its previous version 0.9.0 rc1, it includes many new features on top of the stability improvements. Starting with this stable version, a more conventional release cycle will be used, with stability updates in subminor releases. Next stable version will be 1.0.

At mid-course during the development of this release, a bug tracking system has been introduced. Here is a link to all issues or feature requests fixed or included in this new version.

Here is a summary of these new features:

  • new global star registration, taking into account field rotation
  • new quality evaluation method for planetary images, used to sort the best
  • images selected for stacking
  • new parallelized stacking algorithm for all sequences, including all SER formats, allowing maximum used memory to be set
  • threading of the most time consuming processings, to keep the GUI reactive, as well as many other speed improvements
  • tested and improved on FreeBSD and MacOS X systems, and ARM architectures
  • undo/redo on processing operations
  • sequence cropping tool

Note: support for films such as AVI has been dropped and many functions of Siril will not work for them, in favour of the SER format. In a future release, we will allow their conversion to SER. In the mean time, only sum stacking should be working properly with them.