This release changes how Hypothesis deletes data when shrinking in order to better handle deletion of large numbers of contiguous sequences. Most tests should see little change, but this will hopefully provide a significant speed up for :doc:`stateful testing <stateful>`.
3.66.23
Not secure
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This release makes some internal changes to enable further improvements to the shrinker. You may see some changes in the final shrunk examples, but they are unlikely to be significant.
3.66.22
Not secure
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This release adds some more internal caching to the shrinker. This should cause a significant speed up for shrinking, especially for stateful testing and large example sizes.
3.66.21
Not secure
--------------------
This patch is for downstream packagers - our tests now pass under :pypi:`pytest` 3.7.0 (released 2018-07-30). There are no changes to the source of Hypothesis itself.
3.66.20
Not secure
--------------------
This release removes some functionality from the shrinker that was taking a considerable amount of time and does not appear to be useful any more due to a number of quality improvements in the shrinker.
You may see some degradation in shrink quality as a result of this, but mostly shrinking should just get much faster.
3.66.19
Not secure
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This release slightly changes the format of some debugging information emitted during shrinking, and refactors some of the internal interfaces around that.