diff --git a/CHANGES.md b/CHANGES.md
index 8167277f..0952e1f1 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,3 +1,16 @@
+Zorka 1.90.6 (2019-01-19)
+-------------------------
+
+* fix bugs causing some classes to be skipped by instrumentation engine;
+* SLA calculation code removed from ZorkaStats;
+* new NIO based network server (based on http-kit);
+* Prometheus scrapping mode - rudimentary implementation;
+* fix: request parsing for Zabbix 4.0;
+* zico2: switched to binary agent-collector protcol (no base64 anymore);
+* zico2: optional TLS encryption between agent and server;
+* new HTTP client code with TLS support and keep-alive;
+ 
+
 Zorka 1.90.5 (2018-11-05)
 -------------------------
 
diff --git a/pom.xml b/pom.xml
index b3b066fe..2156299f 100644
--- a/pom.xml
+++ b/pom.xml
@@ -3,7 +3,7 @@
     <groupId>com.jitlogic.zorka</groupId>
     <artifactId>zorka</artifactId>
     <packaging>pom</packaging>
-    <version>1.90.6-SNAPSHOT</version>
+    <version>1.90.6</version>
     <name>zorka: parent aggregator</name>
     <url>http://zorka.io</url>
 
diff --git a/zorka-agent/pom.xml b/zorka-agent/pom.xml
index 8a7a5a6b..684482f1 100644
--- a/zorka-agent/pom.xml
+++ b/zorka-agent/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>zorka</artifactId>
         <groupId>com.jitlogic.zorka</groupId>
-        <version>1.90.6-SNAPSHOT</version>
+        <version>1.90.6</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/zorka-bsh-core/pom.xml b/zorka-bsh-core/pom.xml
index 99b48ddd..923dad93 100644
--- a/zorka-bsh-core/pom.xml
+++ b/zorka-bsh-core/pom.xml
@@ -6,7 +6,7 @@
     <parent>
         <artifactId>zorka</artifactId>
         <groupId>com.jitlogic.zorka</groupId>
-        <version>1.90.6-SNAPSHOT</version>
+        <version>1.90.6</version>
     </parent>
 
     <modelVersion>4.0.0</modelVersion>
diff --git a/zorka-bsh-shell/pom.xml b/zorka-bsh-shell/pom.xml
index 0885b772..8cd9f9e9 100644
--- a/zorka-bsh-shell/pom.xml
+++ b/zorka-bsh-shell/pom.xml
@@ -6,7 +6,7 @@
     <parent>
         <artifactId>zorka</artifactId>
         <groupId>com.jitlogic.zorka</groupId>
-        <version>1.90.6-SNAPSHOT</version>
+        <version>1.90.6</version>
     </parent>
 
     <modelVersion>4.0.0</modelVersion>
diff --git a/zorka-cbor/pom.xml b/zorka-cbor/pom.xml
index c0867ecc..7ffc14dd 100644
--- a/zorka-cbor/pom.xml
+++ b/zorka-cbor/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>zorka</artifactId>
         <groupId>com.jitlogic.zorka</groupId>
-        <version>1.90.6-SNAPSHOT</version>
+        <version>1.90.6</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/zorka-common/pom.xml b/zorka-common/pom.xml
index c1cb356b..f1568a80 100644
--- a/zorka-common/pom.xml
+++ b/zorka-common/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>zorka</artifactId>
         <groupId>com.jitlogic.zorka</groupId>
-        <version>1.90.6-SNAPSHOT</version>
+        <version>1.90.6</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/zorka-core/pom.xml b/zorka-core/pom.xml
index da5947a2..58c8c47d 100644
--- a/zorka-core/pom.xml
+++ b/zorka-core/pom.xml
@@ -6,7 +6,7 @@
     <parent>
         <groupId>com.jitlogic.zorka</groupId>
         <artifactId>zorka</artifactId>
-        <version>1.90.6-SNAPSHOT</version>
+        <version>1.90.6</version>
     </parent>
     <dependencies>
         <dependency>
diff --git a/zorka-dist/pom.xml b/zorka-dist/pom.xml
index b05de417..1f78cfa6 100644
--- a/zorka-dist/pom.xml
+++ b/zorka-dist/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>zorka</artifactId>
         <groupId>com.jitlogic.zorka</groupId>
-        <version>1.90.6-SNAPSHOT</version>
+        <version>1.90.6</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/zorka-netkit/pom.xml b/zorka-netkit/pom.xml
index 7cce4bd5..892fd53b 100644
--- a/zorka-netkit/pom.xml
+++ b/zorka-netkit/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>zorka</artifactId>
         <groupId>com.jitlogic.zorka</groupId>
-        <version>1.90.6-SNAPSHOT</version>
+        <version>1.90.6</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/zorka-slf4j/pom.xml b/zorka-slf4j/pom.xml
index 4db25f45..74ceecbb 100644
--- a/zorka-slf4j/pom.xml
+++ b/zorka-slf4j/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>zorka</artifactId>
         <groupId>com.jitlogic.zorka</groupId>
-        <version>1.90.6-SNAPSHOT</version>
+        <version>1.90.6</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/zorka-snmp/pom.xml b/zorka-snmp/pom.xml
index b259ba7b..6608ea1e 100644
--- a/zorka-snmp/pom.xml
+++ b/zorka-snmp/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <artifactId>zorka</artifactId>
         <groupId>com.jitlogic.zorka</groupId>
-        <version>1.90.6-SNAPSHOT</version>
+        <version>1.90.6</version>
     </parent>
 
     <modelVersion>4.0.0</modelVersion>