diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,3 +1,9 @@
 # Changelog for moss
 
-## Unreleased changes
+## 0.2
+
+- Add more languages supported by MOSS ([#2](https://github.com/mbg/moss/pull/2))
+
+## 0.1
+
+- Initial release
diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -1,16 +1,20 @@
-# moss
+# Haskell client library for Moss
 
-Haskell client library for [Moss](https://theory.stanford.edu/~aiken/moss/).
+![GitHub](https://img.shields.io/github/license/mbg/moss)
+![CI](https://github.com/mbg/moss/workflows/CI/badge.svg)
+[![Hackage](https://img.shields.io/hackage/v/moss)](https://hackage.haskell.org/package/moss)
 
+Haskell client library for [Moss](https://theory.stanford.edu/~aiken/moss/) which is an online service for checking for code similarity, primarily aimed at detecting plagiarism. 
+
 ## Example
 
-In order to use Moss, you need to register on the Moss website. Once you have your access token, using the library is fairly easy:
+In order to use Moss, you need to register on the [Moss website](https://theory.stanford.edu/~aiken/moss/). Once you have your access token, using the library is fairly easy:
 
 ```haskell
 import Stanford.Moss
 
 cfg :: MossCfg
-cfg = defaultMossCfg {
+cfg = defaultMossCfg{
     mossLanguage = Haskell,
     mossUser = "[YOUR ACCESS TOKEN HERE]"
 }
diff --git a/moss.cabal b/moss.cabal
--- a/moss.cabal
+++ b/moss.cabal
@@ -1,13 +1,13 @@
 cabal-version: 1.12
 
--- This file has been generated from package.yaml by hpack version 0.31.0.
+-- This file has been generated from package.yaml by hpack version 0.33.0.
 --
 -- see: https://github.com/sol/hpack
 --
--- hash: 242278afc3ff26ab06aac60f132d9b70b071d6757c7763d6bf804c6cf8260412
+-- hash: cdb107d0caf11126d5eefa6f4edb3750c1846dbd80ea9e7df483e783c4bbdac9
 
 name:           moss
-version:        0.1.0.0
+version:        0.2.0.0
 synopsis:       Haskell client for Moss
 description:    Please see the README on Github at <https://github.com/mbg/moss#readme>
 category:       Web
diff --git a/src/Stanford/Moss.hs b/src/Stanford/Moss.hs
--- a/src/Stanford/Moss.hs
+++ b/src/Stanford/Moss.hs
@@ -35,7 +35,7 @@
 
 --------------------------------------------------------------------------------
 
--- | Represents the configuration for a Moss connection.
+-- | Represents configurations for a Moss connection.
 data MossCfg = MossCfg {
     mossServer     :: HostName,
     mossPort       :: ServiceName,
@@ -45,7 +45,7 @@
     mossMaxMatches :: Int,
     mossShow       :: Bool,
     mossLanguage   :: Language
-}
+} deriving (Eq, Show)
 
 -- | 'defaultMossCfg' is the default configuration for a Moss connection.
 defaultMossCfg :: MossCfg
@@ -88,19 +88,38 @@
     | MIPS
     | A8086
     | HCL2
-    deriving (Enum)
+    | ASCII
+    | Prolog
+    | PLSQL
+    deriving (Eq, Enum)
 
 instance Show Language where
-    show C       = "c"
-    show CPP     = "cc"
-    show Java    = "java"
-    show ML      = "ml"
-    show Pascal  = "pascal"
-    show Ada     = "ada"
-    show Lisp    = "lisp"
-    show Scheme  = "scheme"
-    show Haskell = "haskell"
+    show C = "c"
+    show CPP = "cc"
+    show Java = "java"
+    show CSharp = "csharp"
+    show Python = "python"
+    show VisualBasic = "vb"
+    show Javascript = "javascript"
     show FORTRAN = "fortran"
+    show ML = "ml"
+    show Haskell = "haskell"
+    show Lisp = "lisp"
+    show Scheme = "scheme"
+    show Pascal = "pascal"
+    show Modula2 = "modula2"
+    show Ada = "ada"
+    show Perl = "perl"
+    show TCL = "tcl"
+    show Matlab = "matlab"
+    show VHDL = "vhdl"
+    show Verilog = "verilog"
+    show Spice = "spice"
+    show MIPS = "mips"
+    show A8086 = "a8086"
+    show ASCII = "ascii"
+    show Prolog = "prolog"
+    show PLSQL = "plsql"
 
 --------------------------------------------------------------------------------
 
@@ -109,8 +128,9 @@
     mossSocket  :: Socket,
     mossCounter :: Int,
     mossCfg     :: MossCfg
-}
+} deriving (Eq, Show)
 
+-- | The type of computations which use a connection to Moss.
 type Moss = StateT MossSt IO
 
 -- | 'sendCmd' @socket bytestring@ sends @bytestring@ as a command over the
@@ -144,10 +164,6 @@
                 sendCmd s "end"
                 return r
 
-{-send = withSocketsDo $ do
-    h <- connectTo mossServer mossPort
-    hClose h-}
-
 -- | 'uploadFile' @index name path@ uploads a file located at @path@ to Moss
 -- and assigns it to the collection of files at @index@ (e.g. representing
 -- a student) with the name given by @name@.
@@ -187,7 +203,9 @@
         uploadFile (mossCounter st) dn fn
     put $ st { mossCounter = mossCounter st + 1 }
 
--- | 'query' @comment@ runs the plagiarism check on all submitted files
+-- | 'query' @comment@ runs the plagiarism check on all submitted files. The
+-- URL of the report is returned if Moss was able to perform the checks
+-- successfully.
 query :: BS.ByteString -> Moss (Maybe BS.ByteString)
 query cmt = do
     s <- gets mossSocket