diff --git a/serverBin/ctbDetectorServer_developer b/serverBin/ctbDetectorServer_developer
deleted file mode 120000
index 2304a2043..000000000
--- a/serverBin/ctbDetectorServer_developer
+++ /dev/null
@@ -1 +0,0 @@
-../slsDetectorServers/ctbDetectorServer/bin/ctbDetectorServer_developer
\ No newline at end of file
diff --git a/serverBin/ctbDetectorServerv9.1.0 b/serverBin/ctbDetectorServerv9.1.0
new file mode 120000
index 000000000..a13eac137
--- /dev/null
+++ b/serverBin/ctbDetectorServerv9.1.0
@@ -0,0 +1 @@
+../slsDetectorServers/ctbDetectorServer/bin/ctbDetectorServerv9.1.0
\ No newline at end of file
diff --git a/serverBin/eigerDetectorServer_developer b/serverBin/eigerDetectorServer_developer
deleted file mode 120000
index 117c94c37..000000000
--- a/serverBin/eigerDetectorServer_developer
+++ /dev/null
@@ -1 +0,0 @@
-../slsDetectorServers/eigerDetectorServer/bin/eigerDetectorServer_developer
\ No newline at end of file
diff --git a/serverBin/eigerDetectorServerv9.0.0 b/serverBin/eigerDetectorServerv9.0.0
new file mode 120000
index 000000000..4304e388f
--- /dev/null
+++ b/serverBin/eigerDetectorServerv9.0.0
@@ -0,0 +1 @@
+../slsDetectorServers/eigerDetectorServer/bin/eigerDetectorServerv9.0.0
\ No newline at end of file
diff --git a/serverBin/gotthard2DetectorServer_developer b/serverBin/gotthard2DetectorServer_developer
deleted file mode 120000
index 7c8e54bee..000000000
--- a/serverBin/gotthard2DetectorServer_developer
+++ /dev/null
@@ -1 +0,0 @@
-../slsDetectorServers/gotthard2DetectorServer/bin/gotthard2DetectorServer_developer
\ No newline at end of file
diff --git a/serverBin/gotthard2DetectorServerv9.0.0 b/serverBin/gotthard2DetectorServerv9.0.0
new file mode 120000
index 000000000..9ed8c6365
--- /dev/null
+++ b/serverBin/gotthard2DetectorServerv9.0.0
@@ -0,0 +1 @@
+../slsDetectorServers/gotthard2DetectorServer/bin/gotthard2DetectorServerv9.0.0
\ No newline at end of file
diff --git a/serverBin/gotthardDetectorServer_developer b/serverBin/gotthardDetectorServer_developer
deleted file mode 120000
index 28e8385e0..000000000
--- a/serverBin/gotthardDetectorServer_developer
+++ /dev/null
@@ -1 +0,0 @@
-../slsDetectorServers/gotthardDetectorServer/bin/gotthardDetectorServer_developer
\ No newline at end of file
diff --git a/serverBin/gotthardDetectorServerv9.0.0 b/serverBin/gotthardDetectorServerv9.0.0
new file mode 120000
index 000000000..e2758e2b8
--- /dev/null
+++ b/serverBin/gotthardDetectorServerv9.0.0
@@ -0,0 +1 @@
+../slsDetectorServers/gotthardDetectorServer/bin/gotthardDetectorServerv9.0.0
\ No newline at end of file
diff --git a/serverBin/jungfrauDetectorServer_developer b/serverBin/jungfrauDetectorServer_developer
deleted file mode 120000
index 8ae22b591..000000000
--- a/serverBin/jungfrauDetectorServer_developer
+++ /dev/null
@@ -1 +0,0 @@
-../slsDetectorServers/jungfrauDetectorServer/bin/jungfrauDetectorServer_developer
\ No newline at end of file
diff --git a/serverBin/jungfrauDetectorServerv9.1.0 b/serverBin/jungfrauDetectorServerv9.1.0
new file mode 120000
index 000000000..0d51aa851
--- /dev/null
+++ b/serverBin/jungfrauDetectorServerv9.1.0
@@ -0,0 +1 @@
+../slsDetectorServers/jungfrauDetectorServer/bin/jungfrauDetectorServerv9.1.0
\ No newline at end of file
diff --git a/serverBin/moenchDetectorServer_developer b/serverBin/moenchDetectorServer_developer
deleted file mode 120000
index 147ecfb53..000000000
--- a/serverBin/moenchDetectorServer_developer
+++ /dev/null
@@ -1 +0,0 @@
-../slsDetectorServers/moenchDetectorServer/bin/moenchDetectorServer_developer
\ No newline at end of file
diff --git a/serverBin/moenchDetectorServerv9.0.0 b/serverBin/moenchDetectorServerv9.0.0
new file mode 120000
index 000000000..aafcf2249
--- /dev/null
+++ b/serverBin/moenchDetectorServerv9.0.0
@@ -0,0 +1 @@
+../slsDetectorServers/moenchDetectorServer/bin/moenchDetectorServerv9.0.0
\ No newline at end of file
diff --git a/serverBin/mythen3DetectorServer_developer b/serverBin/mythen3DetectorServer_developer
deleted file mode 120000
index cc8b2c91f..000000000
--- a/serverBin/mythen3DetectorServer_developer
+++ /dev/null
@@ -1 +0,0 @@
-../slsDetectorServers/mythen3DetectorServer/bin/mythen3DetectorServer_developer
\ No newline at end of file
diff --git a/serverBin/mythen3DetectorServerv9.1.0 b/serverBin/mythen3DetectorServerv9.1.0
new file mode 120000
index 000000000..f8c18a0e4
--- /dev/null
+++ b/serverBin/mythen3DetectorServerv9.1.0
@@ -0,0 +1 @@
+../slsDetectorServers/mythen3DetectorServer/bin/mythen3DetectorServerv9.1.0
\ No newline at end of file
diff --git a/serverBin/xilinx_ctbDetectorServerv9.1.0 b/serverBin/xilinx_ctbDetectorServerv9.1.0
new file mode 120000
index 000000000..416fbcee7
--- /dev/null
+++ b/serverBin/xilinx_ctbDetectorServerv9.1.0
@@ -0,0 +1 @@
+../slsDetectorServers/xilinx_ctbDetectorServer/bin/xilinx_ctbDetectorServerv9.1.0
\ No newline at end of file
diff --git a/slsDetectorServers/mythen3DetectorServer/bin/mythen3DetectorServerv9.1.0 b/slsDetectorServers/mythen3DetectorServer/bin/mythen3DetectorServerv9.1.0
new file mode 100755
index 000000000..3a6717777
Binary files /dev/null and b/slsDetectorServers/mythen3DetectorServer/bin/mythen3DetectorServerv9.1.0 differ
diff --git a/slsDetectorServers/mythen3DetectorServer/slsDetectorServer_defs.h b/slsDetectorServers/mythen3DetectorServer/slsDetectorServer_defs.h
index d9287e862..b0d8c1ea5 100644
--- a/slsDetectorServers/mythen3DetectorServer/slsDetectorServer_defs.h
+++ b/slsDetectorServers/mythen3DetectorServer/slsDetectorServer_defs.h
@@ -50,7 +50,7 @@
 #define DEFAULT_NUM_CYCLES               (1)
 #define DEFAULT_GATE_WIDTH               (100 * 1000 * 1000) // ns
 #define DEFAULT_GATE_DELAY               (0)
-#define DEFAULT_PERIOD                   (2 * 1000 * 1000) // ns
+#define DEFAULT_PERIOD                   (0) // ns
 #define DEFAULT_DELAY_AFTER_TRIGGER      (0)
 #define DEFAULT_HIGH_VOLTAGE             (0)
 #define DEFAULT_TIMING_MODE              (AUTO_TIMING)
diff --git a/slsSupportLib/include/sls/versionAPI.h b/slsSupportLib/include/sls/versionAPI.h
index 7ef5581fb..cbf7b6e7a 100644
--- a/slsSupportLib/include/sls/versionAPI.h
+++ b/slsSupportLib/include/sls/versionAPI.h
@@ -3,7 +3,6 @@
 /** API versions */
 #define APIGOTTHARD  "9.0.0 0x241121"
 #define APIGOTTHARD2 "9.0.0 0x241121"
-#define APIMYTHEN3   "9.0.0 0x241121"
 #define APIMOENCH    "9.0.0 0x241121"
 #define APIEIGER     "9.0.0 0x241121"
 #define APILIB       "9.1.0 0x250204"
@@ -11,3 +10,4 @@
 #define APICTB       "9.1.0 0x250204"
 #define APIXILINXCTB "9.1.0 0x250204"
 #define APIJUNGFRAU  "9.1.0 0x250224"
+#define APIMYTHEN3   "9.1.0 0x250304"