Update library version and readme.

README.md

@@ -10,7 +10,7 @@ A Nim wrapper for [Facebook's RocksDB](https://github.com/facebook/rocksdb), a p
 
 ## Current status
 
-Nim-RocksDB currently provides a wrapper for the low-level functions of RocksDB
+Nim-RocksDB provides a wrapper for the low-level functions in the librocksdb c library.
 
 ## Requirements
 
@@ -30,14 +30,6 @@ nim c -d:LibrocksbStaticArgs='-l:librocksdb.a' --gcc.linkerexe=g++ --threads:on
 
 (we need the C++ linker profile because it's a C++ library)
 
-## Future directions
-
-In the future, Nim-RocksDB might provide a high-level API that:
-
-- is more in line with Nim conventions (types in CamelCase),
-- automatically checks for errors,
-- leverage Nim features like destructors for automatic resource cleanup.
-
 ### Contribution
 
 Any contribution intentionally submitted for inclusion in the work by you shall be dual licensed as above, without any

rocksdb.nimble

@@ -1,13 +1,13 @@
 packageName   = "rocksdb"
-version       = "0.3.1"
+version       = "0.4.0"
 author        = "Status Research & Development GmbH"
 description   = "A wrapper for Facebook's RocksDB, an embeddable, persistent key-value store for fast storage"
 license       = "Apache License 2.0 or GPLv2"
 skipDirs      = @["examples", "tests"]
 mode          = ScriptMode.Verbose
 
 ### Dependencies
-requires "nim >= 1.2.0",
+requires "nim >= 1.6.0",
          "stew",
          "tempfile",
          "unittest2"