diff --git a/ChangeLog.md b/ChangeLog.md
new file mode 100644
--- /dev/null
+++ b/ChangeLog.md
@@ -0,0 +1,3 @@
+## 1.0.1
+
+* Added `STNightly2`
diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -1,5 +1,7 @@
 ## stackage-types
 
+[![Build Status](https://travis-ci.org/fpco/stackage-types.svg?branch=master)](https://travis-ci.org/fpco/stackage-types)
+
 This is a repository for sharing data types across multiple packages in the
 [Stackage project](https://www.stackage.org). In particular, it started as a
 means of sharing code between
diff --git a/Stackage/Types.hs b/Stackage/Types.hs
--- a/Stackage/Types.hs
+++ b/Stackage/Types.hs
@@ -48,6 +48,7 @@
 import           Data.String                     (IsString, fromString)
 import           Data.Text                       (Text, pack, unpack)
 import qualified Data.Text                       as T
+import           Data.Time                       (Day)
 import qualified Data.Traversable                as T
 import           Data.Typeable                   (TypeRep, Typeable, typeOf)
 import           Data.Vector                     (Vector)
@@ -59,12 +60,17 @@
 import qualified Distribution.Version            as C
 
 data SnapshotType = STNightly
+                  | STNightly2 !Day
                   | STLTS !Int !Int -- ^ major, minor
     deriving (Show, Read, Eq, Ord)
 
 instance ToJSON SnapshotType where
     toJSON STNightly = object
         [ "type" .= asText "nightly"
+        ]
+    toJSON (STNightly2 day) = object
+        [ "type" .= asText "nightly"
+        , "date" .= show day
         ]
     toJSON (STLTS major minor) = object
         [ "type" .= asText "lts"
diff --git a/stackage-types.cabal b/stackage-types.cabal
--- a/stackage-types.cabal
+++ b/stackage-types.cabal
@@ -1,5 +1,5 @@
 name:                stackage-types
-version:             1.0.0
+version:             1.0.1
 synopsis:            Shared data types between various Stackage packages
 description:         For more information, see <https://www.stackage.org/package/stackage-types>
 homepage:            https://github.com/fpco/stackage-types
@@ -9,7 +9,7 @@
 maintainer:          michael@fpcomplete.com
 category:            Data
 build-type:          Simple
-extra-source-files:  README.md
+extra-source-files:  README.md ChangeLog.md
 cabal-version:       >=1.10
 
 library
@@ -24,4 +24,9 @@
                      , text
                      , unordered-containers
                      , vector
+                     , time
   default-language:    Haskell2010
+
+source-repository head
+  type:     git
+  location: https://github.com/fpco/stackage-types