Based on https://github.com/zendframework/zend-form/releases/tag/release-2.6.0 (commit 398e4c4786d33c87818e38006a1d87796ebaf69a in this repo)

Added
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- [zendframework/zend-form#17](https://github.com/zendframework/zend-form/pull/17) updates the component
  to use laminas-hydrator for hydrator functionality; this provides forward
  compatibility with laminas-hydrator, and backwards compatibility with
  hydrators from older versions of laminas-stdlib.

Deprecated
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- Nothing.

Removed
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- Nothing.

Fixed
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- Nothing.