diff --git a/Crypto/OpenSSL/AES/Foreign.hsc b/Crypto/OpenSSL/AES/Foreign.hsc
--- a/Crypto/OpenSSL/AES/Foreign.hsc
+++ b/Crypto/OpenSSL/AES/Foreign.hsc
@@ -60,8 +60,10 @@
     ssl_c_cipher_ctx_new :: IO (Ptr EVP_CIPHER_CTX)
 #endif
 
+#ifndef OPENSSL_HAS_OPAQUE_EVP_CIPHER_CTX
 foreign import ccall unsafe "EVP_CIPHER_CTX_init"
     ssl_c_cipher_ctx_init :: Ptr EVP_CIPHER_CTX -> IO ()
+#endif
 
 foreign import ccall unsafe "&EVP_CIPHER_CTX_free"
     ssl_c_cipher_ctx_free :: FunPtr (Ptr EVP_CIPHER_CTX -> IO ())
diff --git a/Crypto/OpenSSL/Misc.hs b/Crypto/OpenSSL/Misc.hs
--- a/Crypto/OpenSSL/Misc.hs
+++ b/Crypto/OpenSSL/Misc.hs
@@ -11,6 +11,7 @@
 import           Data.Typeable
 import           Foreign.C.Types (CInt)
 import           System.IO.Unsafe (unsafePerformIO)
+import           Basement.Compat.CallStack
 
 data OpenSSLError = OpenSSLError Int
     deriving (Show,Read,Eq,Typeable)
@@ -22,7 +23,7 @@
 
 instance Exception OpenSSLGcmError
 
-check :: IO CInt -> IO ()
+check :: HasCallStack => IO CInt -> IO ()
 check f = do
     r <- f
     if r == 0
diff --git a/LICENSE b/LICENSE
--- a/LICENSE
+++ b/LICENSE
@@ -1,4 +1,4 @@
-Copyright (c) 2015-2016 Vincent Hanquez <vincent@snarc.org>
+Copyright (c) 2015-2018 Vincent Hanquez <vincent@snarc.org>
 Copyright (c) 2013-2015 PivotCloud, Inc.
 
 All rights reserved.
diff --git a/README.md b/README.md
deleted file mode 100644
--- a/README.md
+++ /dev/null
@@ -1,60 +0,0 @@
-cryptonite-openssl
-==================
-
-[![Build Status](https://travis-ci.org/vincenthz/cryptonite-openssl.png?branch=master)](https://travis-ci.org/vincenthz/cryptonite-openssl)
-[![BSD](http://b.repl.ca/v1/license-BSD-blue.png)](http://en.wikipedia.org/wiki/BSD_licenses)
-[![Haskell](http://b.repl.ca/v1/language-haskell-lightgrey.png)](http://haskell.org)
-
-Support for OpenSSL based crypto operations in Haskell, as a bolt-in to [cryptonite](http://hackage.haskell.org/package/cryptonite)
-
-If you have no idea what're you doing, please do not use this directly, rely on
-higher level protocols or higher level implementation.
-
-Documentation: [cryptonite-openssl on hackage](http://hackage.haskell.org/package/cryptonite-openssl)
-
-Support
--------
-
-cryptonite-openssl supports the following platform:
-
-* Windows >= 7
-* OSX >= 10.8
-* Linux
-
-On the following architectures:
-
-* x86-64
-* i386
-
-On the following haskell versions:
-
-* GHC 7.0.x
-* GHC 7.4.x
-* GHC 7.6.x
-* GHC 7.8.x
-* GHC 7.10.x
-
-Further platforms and architectures probably works too, but until maintainer(s) don't have regular
-access to them, we can't commit for further support
-
-Building on MacOS X
--------------------
-
-* using openssl system library
-* using alternative installation
-
-Building on windows
--------------------
-
-You need the C++ runtime :
-
-* http://www.microsoft.com/downloads/details.aspx?familyid=bd2a6171-e2d6-4230-b809-9a8d7548c1b6
-
-And the right installation of OpenSSL. Some binary installations are available here:
-
-* https://slproweb.com/products/Win32OpenSSL.html
-
-Building with alternative OpenSSL - BoringSSL, LibreSSL
--------------------------------------------------------
-
-TODO
diff --git a/cryptonite-openssl.cabal b/cryptonite-openssl.cabal
--- a/cryptonite-openssl.cabal
+++ b/cryptonite-openssl.cabal
@@ -1,7 +1,7 @@
 Name:                cryptonite-openssl
-Version:             0.6
+Version:             0.7
 Synopsis:            Crypto stuff using OpenSSL cryptographic library
-Description:         cryptography
+Description:         Crypto stuff using the OpenSSL cryptographic library as bindings
 License:             BSD3
 License-file:        LICENSE
 Copyright:           Vincent Hanquez <vincent@snarc.org>
@@ -13,13 +13,14 @@
 Homepage:            https://github.com/haskell-crypto/cryptonite-openssl
 Bug-reports:         https://github.com/haskell-crypto/cryptonite-openssl/issues
 Cabal-Version:       >=1.10
-extra-doc-files:     README.md
 
 source-repository head
   type: git
   location: https://github.com/haskell-crypto/cryptonite-openssl
 
 Library
+  if impl(ghc < 8.0)
+    buildable: False
   Exposed-modules:   Crypto.OpenSSL
                      Crypto.OpenSSL.ECC
                      Crypto.OpenSSL.BN
@@ -30,8 +31,9 @@
                    , Crypto.OpenSSL.AES.Foreign
                    , Crypto.OpenSSL.Misc
                    , Crypto.OpenSSL.ASN1
-  Build-depends:     base >= 4.3 && < 5
+  Build-depends:     base
                    , bytestring
+                   , basement
                    , memory
                    , cryptonite
   ghc-options:       -Wall -fwarn-tabs -optc-O3
@@ -55,7 +57,7 @@
   hs-source-dirs:    tests
   Main-is:           Tests.hs
   Other-modules:     Imports
-  Build-Depends:     base >= 3 && < 5
+  Build-Depends:     base
                    , bytestring
                    , tasty
                    , tasty-quickcheck