I've just released Ferret 0.11.0 which is the first release candidate
for Ferret 1.0. This release has no new features to the API but it
does fix some very major bugs. Ferret now uses lock-less commits which
fixes a problem a lot of people where having with file not found
exceptions. I've also fixed a number of bugs which were causing
segfaults (hopefully all of them) so Ferret is now a lot more stable.

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!! IMPORTANT !!
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Some of these fixes mean that the current version of Ferret is not
backwards compatible. If you install the latest version you will need
to rebuild your index from scratch. Having said that, I do recommend
that everyone upgrade. The new version should be *MUCH* more stable.