Bump version to 2.2.1 for a potential future dot release.

Author: tkremenek

CMakeLists.txt

@@ -54,7 +54,7 @@ option(SWIFT_INCLUDE_DOCS
     "Create targets for building docs."
     TRUE)
 
-set(SWIFT_VERSION "2.2" CACHE STRING
+set(SWIFT_VERSION "2.2.1" CACHE STRING
     "The user-visible version of the Swift compiler")
 set(SWIFT_VENDOR "" CACHE STRING
     "The vendor name of the Swift compiler")

docs/conf.py

@@ -47,9 +47,9 @@
 # built documents.
 #
 # The short X.Y version.
-version = '2.2'
+version = '2.2.1'
 # The full version, including alpha/beta/rc tags.
-release = '2.2'
+release = '2.2.1'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.