diff --git a/CC.rez b/CC.rez
index 62417ae..56cdc7c 100644
--- a/CC.rez
+++ b/CC.rez
@@ -5,8 +5,8 @@ resource rVersion(1) {
       2,				/* Major revision */
       2,				/* Minor revision */
       1,				/* Bug version */
-      development,			/* Release stage */
-      1,				/* Non-final release # */
+      release,			/* Release stage */
+      0,				/* Non-final release # */
       },
    verUS,				/* Region code */
    "ORCA/C",				/* Short version number */
diff --git a/CCommon.pas b/CCommon.pas
index bb86fd1..ad1052f 100644
--- a/CCommon.pas
+++ b/CCommon.pas
@@ -112,7 +112,7 @@ const
    flag_t       = $00001000;            {treat all errors as terminal?}
    flag_w       = $00000200;            {wait when an error is found?}
 
-   versionStr = '2.2.1 dev';		{compiler version}
+   versionStr = '2.2.1';		{compiler version}
 
 type
                                         {Misc.}
diff --git a/Header.pas b/Header.pas
index 43c8921..5505270 100644
--- a/Header.pas
+++ b/Header.pas
@@ -18,7 +18,7 @@ uses CCommon, MM, Scanner, Symbol, CGI;
 {$segment 'HEADER'}
 
 const
-   symFileVersion = 44;                 {version number of .sym file format}
+   symFileVersion = 45;                 {version number of .sym file format}
 
 var
    inhibitHeader: boolean;		{should .sym includes be blocked?}
diff --git a/cc.notes b/cc.notes
index 46e3f9f..57e7651 100644
--- a/cc.notes
+++ b/cc.notes
@@ -8,6 +8,10 @@ These release notes document the changes between ORCA/C 2.0 and ORCA/C 2.2.1.  T
 
 2.2.1       1.	Bugs squashed.  See bug notes, below.
 
+            2.	Small optimizations in some library functions.
+
+            3.	Improved the code generated for certain operations.
+
 2.2.0       1.	Bugs squashed.  See bug notes, below.
 
             2.	New language features added (mainly features from C99 and C11).