diff --git a/changelog.md b/changelog.md
--- a/changelog.md
+++ b/changelog.md
@@ -1,3 +1,11 @@
+= HEAD =
+
+= 0.8.0.1 =
+
+ - Added deriving clauses for Class and Feature to support GHC 7.10;
+   based on Rick Dzekman's pull request.  Adds an explicit NFData
+   instance for Perceptron.
+
 = 0.8.0.0 =
 
  - Added a Document type to better store term count indexes
@@ -7,6 +15,8 @@
    reason for the B-level version bump. (also done for performance)
 
  - A number of non-breaking performance improvements (e.g., not using foldl in a few places.)
+
+ - These changes, and much of 0.7.0.0 are due to work by Tristan Ravitch & Jonathan Daugherty.
 
 = 0.7.0.0 =
  - B-level version bump because we added test dependency on
diff --git a/chatter.cabal b/chatter.cabal
--- a/chatter.cabal
+++ b/chatter.cabal
@@ -1,5 +1,5 @@
 name:                chatter
-version:             0.8.0.0
+version:             0.8.0.1
 synopsis:            A library of simple NLP algorithms.
 description:         chatter is a collection of simple Natural Language
                      Processing algorithms.
diff --git a/src/NLP/ML/AvgPerceptron.hs b/src/NLP/ML/AvgPerceptron.hs
--- a/src/NLP/ML/AvgPerceptron.hs
+++ b/src/NLP/ML/AvgPerceptron.hs
@@ -1,4 +1,5 @@
 {-# LANGUAGE DeriveGeneric #-}
+{-# LANGUAGE GeneralizedNewtypeDeriving #-}
 -- | Average Perceptron implementation of Part of speech tagging,
 -- adapted for Haskell from this python implementation, which is described on the blog post:
 --
@@ -34,7 +35,7 @@
 import NLP.Types ()
 
 newtype Feature = Feat Text
-    deriving (Read, Show, Eq, Ord, Generic)
+    deriving (Read, Show, Eq, Ord, Generic, NFData)
 
 instance Serialize Feature
 
@@ -45,7 +46,7 @@
 -- can be defined by the users of the Perceptron (such as custom POS
 -- tag ADTs, or more complex classes).
 newtype Class = Class String
-    deriving (Read, Show, Eq, Ord, Generic)
+    deriving (Read, Show, Eq, Ord, Generic, NFData)
 
 instance Serialize Class