diff --git a/docs/src/quick_start_guide.rst b/docs/src/quick_start_guide.rst
index e35b499d5..1e17ebfc4 100644
--- a/docs/src/quick_start_guide.rst
+++ b/docs/src/quick_start_guide.rst
@@ -133,7 +133,8 @@ Compile with SLS_USE_GUI=ON in cmake or -g option in cmk.sh script. One can also
.. note ::
- | The streaming frequency (commmand: rx_zmqfreq) is set by default in the receiver to 1 (send every frame).
- | At Gui startup, this value is set to 0. It will set to use a timer of 500 ms. Hence, every frame will not be streamed to the gui. This is done to reduce the load for fast and large detectors for display purposes.
- | One can still change this setting in the gui in the Plot tab (Plotting frequency) or from the command line (rx_zmqfreq).
- | First frame is always streamed out, no matter if timer or frequency is used.
\ No newline at end of file
+ | The streaming high water mark (commmand: rx_zmqhwm) and the receiving high water mark (command: zmqhwm) is by default the lib zmq's default (currently 1000).
+ | At Gui startup, these values are set to 2. Hence, for very fast detectors, many frames will be dropped to be able to view the latest in the gui.
+ | One can still change this setting in the gui in the Plot tab (ZMQ Streaming), from the command line or API.
+ | Both hwm's can be set to a -1 to use the lib's default.
+ | Since the dummy end of acquisition packet streamed from receiver might also be lost, receiver restreams until gui acknowledges.
\ No newline at end of file
diff --git a/slsDetectorGui/forms/form_tab_plot.ui b/slsDetectorGui/forms/form_tab_plot.ui
index 573ed181c..a8a125290 100755
--- a/slsDetectorGui/forms/form_tab_plot.ui
+++ b/slsDetectorGui/forms/form_tab_plot.ui
@@ -2008,7 +2008,7 @@ Displays minimum, maximum and sum of values for each plot.
<html><head/><body><p>Sets the pace at which the receiver streams out images. Images in between the timeout or frequency are not sent out.<br/><br/><span style=" font-weight:600;">Time Interval</span>: Streaming time interval when an image should be streamed. <br/><span style=" font-weight:600;">Every nth Image</span>: Only every nth image is streamed. </p><p><br/></p><p><br/></p></body></html>
- Receiver Streaming
+ ZMQ Streaming
Qt::AlignLeading|Qt::AlignLeft|Qt::AlignVCenter
diff --git a/slsSupportLib/include/versionAPI.h b/slsSupportLib/include/versionAPI.h
index c44ff83d7..85f7078dc 100644
--- a/slsSupportLib/include/versionAPI.h
+++ b/slsSupportLib/include/versionAPI.h
@@ -1,5 +1,5 @@
/** API versions */
-#define GITBRANCH "5.0.0-rc2"
+#define GITBRANCH "developer"
#define APICTB 0x201008
#define APIGOTTHARD 0x201008
#define APIGOTTHARD2 0x201008
@@ -9,4 +9,4 @@
#define APIEIGER 0x201008
#define APILIB 0x201008
#define APIRECEIVER 0x201008
-#define APIGUI 0x201008
+#define APIGUI 0x201009