diff --git a/ChangeLog b/ChangeLog
index a1571c693f..e0f4699316 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+ 2011-04-25 12:41  hvlad 
+   M src/jrd/isc_sync.cpp
+Fixed regression introduced by me in patch for CORE-3326 - too many unnecessary calls of ISC_check_process_existence().
+Added defines to switch usage of fast mutex off if necessary.
+
  2011-04-21 19:57  asfernandes 
    M src/jrd/unicode_util.cpp
 Fixed CORE-3447 - Collation is not installed with icu > 4.2.
diff --git a/src/jrd/build_no.h b/src/jrd/build_no.h
index 3e9d5ebc48..39274ff35b 100644
--- a/src/jrd/build_no.h
+++ b/src/jrd/build_no.h
@@ -3,16 +3,16 @@
                *** DO NOT EDIT ***
   TO CHANGE ANY INFORMATION IN HERE PLEASE
   EDIT src/misc/writeBuildNum.sh
-  FORMAL BUILD NUMBER:26264
+  FORMAL BUILD NUMBER:26265
 */
 
-#define PRODUCT_VER_STRING "2.5.1.26264"
-#define FILE_VER_STRING "WI-V2.5.1.26264"
-#define LICENSE_VER_STRING "WI-V2.5.1.26264"
-#define FILE_VER_NUMBER 2, 5, 1, 26264
+#define PRODUCT_VER_STRING "2.5.1.26265"
+#define FILE_VER_STRING "WI-V2.5.1.26265"
+#define LICENSE_VER_STRING "WI-V2.5.1.26265"
+#define FILE_VER_NUMBER 2, 5, 1, 26265
 #define FB_MAJOR_VER "2"
 #define FB_MINOR_VER "5"
 #define FB_REV_NO "1"
-#define FB_BUILD_NO "26264"
+#define FB_BUILD_NO "26265"
 #define FB_BUILD_TYPE "V"
 #define FB_BUILD_SUFFIX "Firebird 2.5"
diff --git a/src/misc/writeBuildNum.sh b/src/misc/writeBuildNum.sh
index 5da33d8074..4c0b410044 100755
--- a/src/misc/writeBuildNum.sh
+++ b/src/misc/writeBuildNum.sh
@@ -9,7 +9,7 @@ BuildType=V
 MajorVer=2
 MinorVer=5
 RevNo=1
-BuildNum=26264
+BuildNum=26265
 
 if [ "$SPECIAL_BUILD_SUFFIX" = "" ]; then
 # Normal builds