diff --git a/slsDetectorServers/gotthard2DetectorServer/bin/gotthard2DetectorServer_developer b/slsDetectorServers/gotthard2DetectorServer/bin/gotthard2DetectorServer_developer
index 295b307be..9abd3acbe 100755
Binary files a/slsDetectorServers/gotthard2DetectorServer/bin/gotthard2DetectorServer_developer and b/slsDetectorServers/gotthard2DetectorServer/bin/gotthard2DetectorServer_developer differ
diff --git a/slsDetectorServers/gotthard2DetectorServer/slsDetectorFunctionList.c b/slsDetectorServers/gotthard2DetectorServer/slsDetectorFunctionList.c
index 90d3a183e..7046f4a16 100644
--- a/slsDetectorServers/gotthard2DetectorServer/slsDetectorFunctionList.c
+++ b/slsDetectorServers/gotthard2DetectorServer/slsDetectorFunctionList.c
@@ -188,9 +188,7 @@ int checkKernelVersion() {
 #ifdef VIRTUAL
     return OK;
 #endif
-    char version[255]={0};
-    strcpy(version, KERNEL_DATE_VRSN);
-    return validateKernelVersion(version, sizeof(version));
+    return validateKernelVersion(KERNEL_DATE_VRSN);
 }
 
 int checkType() {
diff --git a/slsDetectorServers/mythen3DetectorServer/bin/mythen3DetectorServer_developer b/slsDetectorServers/mythen3DetectorServer/bin/mythen3DetectorServer_developer
index 7b5a400c8..e61489ea9 100755
Binary files a/slsDetectorServers/mythen3DetectorServer/bin/mythen3DetectorServer_developer and b/slsDetectorServers/mythen3DetectorServer/bin/mythen3DetectorServer_developer differ
diff --git a/slsDetectorServers/mythen3DetectorServer/slsDetectorServer_defs.h b/slsDetectorServers/mythen3DetectorServer/slsDetectorServer_defs.h
index 06ee3b36b..1c821786c 100644
--- a/slsDetectorServers/mythen3DetectorServer/slsDetectorServer_defs.h
+++ b/slsDetectorServers/mythen3DetectorServer/slsDetectorServer_defs.h
@@ -4,7 +4,7 @@
 #include "sls/sls_detector_defs.h"
 
 #define REQRD_FRMWRE_VRSN (0x210910)
-#define KERNEL_DATE_VRSN  "Wed May 20 13:58:38 CEST 2020"
+#define KERNEL_DATE_VRSN  "Mon May 10 18:00:21 CEST 2021"
 #define ID_FILE           "detid_mythen3.txt"
 
 #define LINKED_SERVER_NAME "mythen3DetectorServer"
diff --git a/slsDetectorServers/slsDetectorServer/include/common.h b/slsDetectorServers/slsDetectorServer/include/common.h
index f69772087..0435c7df2 100644
--- a/slsDetectorServers/slsDetectorServer/include/common.h
+++ b/slsDetectorServers/slsDetectorServer/include/common.h
@@ -26,9 +26,9 @@ int ConvertToDifferentRange(int inputMin, int inputMax, int outputMin,
 
 int getAbsPath(char *buf, size_t bufSize, char *fname);
 
-int getTimeFromString(char *buf, size_t len, time_t *result);
+int getTimeFromString(char *buf, time_t *result);
 
-int validateKernelVersion(char *expectedVersion, size_t len);
+int validateKernelVersion(char *expectedVersion);
 
 void validate(int *ret, char *mess, int arg, int retval, char *modename,
               enum numberMode nummode);
diff --git a/slsDetectorServers/slsDetectorServer/src/common.c b/slsDetectorServers/slsDetectorServer/src/common.c
index ff9ce3c93..6e191ef13 100644
--- a/slsDetectorServers/slsDetectorServer/src/common.c
+++ b/slsDetectorServers/slsDetectorServer/src/common.c
@@ -65,7 +65,7 @@ int getAbsPath(char *buf, size_t bufSize, char *fname) {
     return OK;
 }
 
-int getTimeFromString(char *buf, size_t len, time_t *result) {
+int getTimeFromString(char *buf, time_t *result) {
     // remove timezone as strptime cannot validate timezone despite
     // documentation (for blackfin)
     LOG(logDEBUG, ("buf for time %s\n", buf));
@@ -95,7 +95,7 @@ int getTimeFromString(char *buf, size_t len, time_t *result) {
     return OK;
 }
 
-int validateKernelVersion(char *expectedVersion, size_t len) {
+int validateKernelVersion(char *expectedVersion) {
     // extract kernel date string
     struct utsname buf = {0};
     if (uname(&buf) == -1) {
@@ -115,14 +115,14 @@ int validateKernelVersion(char *expectedVersion, size_t len) {
 
     // convert kernel date string into time
     time_t kernelDate;
-    if (getTimeFromString(output, sizeof(output), &kernelDate) == FAIL) {
+    if (getTimeFromString(output, &kernelDate) == FAIL) {
         LOG(logERROR, ("Could not parse retrieved kernel date, %s\n", output));
         return FAIL;
     }
 
     // convert expected date into time
     time_t expDate;
-    if (getTimeFromString(expectedVersion, len, &expDate) == FAIL) {
+    if (getTimeFromString(expectedVersion, &expDate) == FAIL) {
         LOG(logERROR,
             ("Could not parse expected kernel date, %s\n", expectedVersion));
         return FAIL;
diff --git a/slsSupportLib/include/sls/versionAPI.h b/slsSupportLib/include/sls/versionAPI.h
index c774ada78..3b996257f 100644
--- a/slsSupportLib/include/sls/versionAPI.h
+++ b/slsSupportLib/include/sls/versionAPI.h
@@ -8,8 +8,8 @@
 #define APIGUI 0x211021
 #define APIEIGER 0x211027
 #define APIGOTTHARD 0x211029
-#define APIMYTHEN3 0x211029
 #define APIJUNGFRAU 0x211102
 #define APIMOENCH 0x211029
 #define APICTB 0x211102
+#define APIMYTHEN3 0x211102
 #define APIGOTTHARD2 0x211102