Increment version number.

CMakeLists.txt

@@ -10,7 +10,7 @@ include(EthPolicy)
 eth_policy()
 
 # project name and version should be set after cmake_policy CMP0048
-set(PROJECT_VERSION "0.5.14")
+set(PROJECT_VERSION "0.5.15")
 project(solidity VERSION ${PROJECT_VERSION} LANGUAGES C CXX)
 
 include(TestBigEndian)

docs/bugs_by_version.json

@@ -762,6 +762,10 @@
         "bugs": [],
         "released": "2019-12-09"
     },
+    "0.5.15": {
+        "bugs": [],
+        "released": "2019-12-17"
+    },
     "0.5.2": {
         "bugs": [
             "SignedArrayStorageCopy",