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CHANGES.md

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+## Version 1.2.0.5
+
+ * More portability fixes.
+
+ * Force stack alignment to 16 bytes everywhere. Fixes a segfault.
+
+ * Fix bug where code relied on rewrite rules firing for correctness.
+
+## Version1.2.0.4
+
+ * Update docs to match code.
+
+ * Work around bug in GHCi runtime linker, which never call static
+   initializers.
+
+## Version1.2.0.3
+
+ * Make building of SSE 4.1 code conditional, as it doesn't work on all
+  platforms.
+
+ * Use a fixed salt, but allow random salting. Random salting by
+  default broke people's code.
+
+## Version1.2.0.2
+
+ * Work around ghci linker bug on Windows.
+
+## Version1.2.0.1
+
+ * Fix performance bug in SSE implementation of SipHash.
+
+ * Fix segfault due to incorrect stack alignment on Windows.
+
+## Version1.2.0.0
+
+ * Switch string hashing from FNV-1 to SipHash, in an effort to
+   prevent collision attacks.
+
+ * Switch fixed-size integer hashing to Wang hash.
+
+ * The default salt now switched on every program run, in an effort to
+   prevent collision attacks.
+
+ * Move hash method out of Hashable type class.
+
+ * Add support for generic instance deriving.
+
+ * Add instance for Ordering.
+
+## Version1.1.2.5
+
+ * Bug fix for bytestring < 0.10.0.
+
+## Version1.1.2.4
+
+ * Switch string hashing from Bernstein to FNV-1
+
+ * Faster instance for Integer.
+
+ * Update dependency on base, ghc-prim
+
+ * Now works with GHC 7.6.
+
+## Version1.1.2.3
+
+ * Add instance for TypeRep.
+
+ * Update dependency on test-framework.
+
+## Version1.1.2.2
+
+ * Bug fix for GHC 7.4
+
+## Version1.1.2.1
+
+ * Update dependency on test-framework.
+
+ * Improve documentation of combine.
+
+## Version1.1.2.0
+
+ * Add instances for Interger, Ratio, Float, Double, and StableName.
+
+ * Fix hash collision issues for lists and tuples when using a
+   user-specified salt.
+
+## Version1.1.1.0
+
+ * Improved instances for tuples and lists.
+
+ * Add instances for StableName, Float, Double, Integer, and Ratio.
+
+## Version1.1.1.0
+
+ * Add hashWithSalt, which allows the user to create different hash
+   values for the same input by providing different seeds. This is
+   useful for application like Cuckoo hashing which need a family of
+   hash functions.
+
+ * Fix a bug in the Hashable instance for Int64/Word64 on 32-bit
+   platforms.
+
+ * Improved resilience to leading zero in the input being hashed.
+
+## Version1.1.0.0
+
+ * Add instance for: strict and lazy Texts, ThreadId
+
+ * Add hashPtrWithSalt and hashByteArrayWithSalt.
+
+ * Faster ByteArray# hashing.
+
+ * Fix a signedness bug that affected ByteString.
+
+ * Fix ByteString hashing to work correctly on both 32 and 64-bit
+   platforms.
+
+## Version1.0.1.1
+
+ * Fix bug in Hashable instance for lazy ByteStrings where differences
+   in the internal structure of the ByteString could cause different
+   hash values for ByteStrings that are equal according to ==.
+
+## Version1.0.1.0
+
+ * Add two helpers for creating Hashable instances: hashPtr and
+   hashByteArray.
+
+## Version1.0.0
+
+ * Separate Hashable class to its own package from hashmap 1.0.0.3.