Merge branch '2.5' into 2.6

Author: cowtowncoder

release-notes/VERSION

@@ -66,7 +66,7 @@ No changes since 2.6.3.
 - Add `JsonParser.Feature.IGNORE_UNDEFINED`, useful for data formats like protobuf
 - Optimize writing of String names (remove intermediate copy; with JDK7 no speed benefit)
 
-2.5.5 (not yet released)
+2.5.5 (07-Dec-2015)
 
 #220: Problem with `JsonParser.nextFieldName(SerializableString)` for byte-backed parser
 #221: Fixed ArrayIndexOutOfBounds exception for character-based `JsonGenerator`

src/main/java/com/fasterxml/jackson/core/Version.java

@@ -65,6 +65,10 @@ public Version(int major, int minor, int patchLevel, String snapshotInfo,
     public static Version unknownVersion() { return UNKNOWN_VERSION; }
 
     public boolean isUknownVersion() { return (this == UNKNOWN_VERSION); }
+
+    // Added in patch 2.6.6 (added for good in 2.7)
+    public boolean isUnknownVersion() { return (this == UNKNOWN_VERSION); }
+
     public boolean isSnapshot() { return (_snapshotInfo != null && _snapshotInfo.length() > 0); }
 
     public int getMajorVersion() { return _majorVersion; }