diff --git a/CHANGELOG.md b/CHANGELOG.md
index ca929dca87d4ad3d4160a3fc99378fc09193813d..7192b1e2e6dafd3aaf32ef50532dc71cf184eb2c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # IPtProxy Changelog
 
+## 1.0.0
+- Updated Snowflake to latest master. Fixes multiple minor issues.
+- Updated Obfs4proxy to latest master. Contains a minor fix for Meek.
+- Added port test mechanism to avoid port collisions when started multiple times.
+- Improved documentation.
+
 ## 0.6.0
 - Updated Obfs4proxy to latest master. Fixes support for unsafe logging.
 - Added `StopSnowflakeProxy` from feature branch.
diff --git a/IPtProxy-sources.jar b/IPtProxy-sources.jar
index e7ebe42c00f82ec63f3ab3e3a79fdb1a8c9e4fc1..86506deea2110be31035b74bbe25bfb633941ee3 100644
Binary files a/IPtProxy-sources.jar and b/IPtProxy-sources.jar differ
diff --git a/IPtProxy.aar b/IPtProxy.aar
index e8a076d5568acfd0fe151c1e858a8090008b3192..66779fb7ccb590430059efd4d9a374a5d1e0f16c 100644
Binary files a/IPtProxy.aar and b/IPtProxy.aar differ
diff --git a/IPtProxy.framework/Versions/A/Headers/IPtProxy.objc.h b/IPtProxy.framework/Versions/A/Headers/IPtProxy.objc.h
index 1a1faaacac9ac20202f2bf19a71538452ad47961..70532efbecef2cadfd854971bd1ad3a0f50dd4ff 100644
--- a/IPtProxy.framework/Versions/A/Headers/IPtProxy.objc.h
+++ b/IPtProxy.framework/Versions/A/Headers/IPtProxy.objc.h
@@ -11,16 +11,9 @@
 #include "Universe.objc.h"
 
 
-FOUNDATION_EXPORT const int64_t IPtProxyMeekSocksPort;
-FOUNDATION_EXPORT const int64_t IPtProxyObfs2SocksPort;
-FOUNDATION_EXPORT const int64_t IPtProxyObfs3SocksPort;
-FOUNDATION_EXPORT const int64_t IPtProxyObfs4SocksPort;
-FOUNDATION_EXPORT const int64_t IPtProxyScramblesuitSocksPort;
-FOUNDATION_EXPORT const int64_t IPtProxySnowflakeSocksPort;
-
 @interface IPtProxy : NSObject
 /**
- * Override TOR_PT_STATE_LOCATION, which defaults to "$TMPDIR/pt_state".
+ * StateLocation - Override TOR_PT_STATE_LOCATION, which defaults to "$TMPDIR/pt_state".
  */
 + (NSString* _Nonnull) stateLocation;
 + (void) setStateLocation:(NSString* _Nonnull)v;
@@ -28,18 +21,60 @@ FOUNDATION_EXPORT const int64_t IPtProxySnowflakeSocksPort;
 @end
 
 /**
- * Start the Obfs4Proxy.
+ * MeekPort - Port where Obfs4proxy will provide its Meek service.
+Only use this after calling StartObfs4Proxy! It might have changed after that!
+ */
+FOUNDATION_EXPORT long IPtProxyMeekPort(void);
+
+/**
+ * Obfs2Port - Port where Obfs4proxy will provide its Obfs2 service.
+Only use this property after calling StartObfs4Proxy! It might have changed after that!
+ */
+FOUNDATION_EXPORT long IPtProxyObfs2Port(void);
+
+/**
+ * Obfs3Port - Port where Obfs4proxy will provide its Obfs3 service.
+Only use this property after calling StartObfs4Proxy! It might have changed after that!
+ */
+FOUNDATION_EXPORT long IPtProxyObfs3Port(void);
+
+/**
+ * Obfs4Port - Port where Obfs4proxy will provide its Obfs4 service.
+Only use this property after calling StartObfs4Proxy! It might have changed after that!
+ */
+FOUNDATION_EXPORT long IPtProxyObfs4Port(void);
+
+/**
+ * ScramblesuitPort - Port where Obfs4proxy will provide its Scramblesuit service.
+Only use this property after calling StartObfs4Proxy! It might have changed after that!
+ */
+FOUNDATION_EXPORT long IPtProxyScramblesuitPort(void);
+
+/**
+ * SnowflakePort - Port where Snowflake will provide its service.
+Only use this property after calling StartSnowflake! It might have changed after that!
+ */
+FOUNDATION_EXPORT long IPtProxySnowflakePort(void);
+
+/**
+ * StartObfs4Proxy - Start the Obfs4Proxy.
+
+This will test, if the default ports are available. If not, it will increment them until there is.
+Only use the port properties after calling this, they might have been changed!
 
 @param logLevel Log level (ERROR/WARN/INFO/DEBUG). Defaults to ERROR if empty string.
 
 @param enableLogging Log to TOR_PT_STATE_LOCATION/obfs4proxy.log.
 
 @param unsafeLogging Disable the address scrubber.
+
+@return Port number where Obfs4Proxy will listen on for Obfs4(!), if no error happens during start up.
+	If you need the other ports, check MeekPort, Obfs2Port, Obfs3Port and ScramblesuitPort properties!
  */
-FOUNDATION_EXPORT void IPtProxyStartObfs4Proxy(NSString* _Nullable logLevel, BOOL enableLogging, BOOL unsafeLogging);
+FOUNDATION_EXPORT long IPtProxyStartObfs4Proxy(NSString* _Nullable logLevel, BOOL enableLogging, BOOL unsafeLogging);
 
 /**
- * Start the Snowflake client.
+ * StartSnowflake - Start the Snowflake client.
 
 @param ice Comma-separated list of ICE servers.
 
@@ -56,11 +91,13 @@ FOUNDATION_EXPORT void IPtProxyStartObfs4Proxy(NSString* _Nullable logLevel, BOO
 @param unsafeLogging Prevent logs from being scrubbed.
 
 @param maxPeers Capacity for number of multiplexed WebRTC peers. DEFAULTs to 1 if less than that.
+
+@return Port number where Snowflake will listen on, if no error happens during start up.
  */
-FOUNDATION_EXPORT void IPtProxyStartSnowflake(NSString* _Nullable ice, NSString* _Nullable url, NSString* _Nullable front, NSString* _Nullable logFile, BOOL logToStateDir, BOOL keepLocalAddresses, BOOL unsafeLogging, long maxPeers);
+FOUNDATION_EXPORT long IPtProxyStartSnowflake(NSString* _Nullable ice, NSString* _Nullable url, NSString* _Nullable front, NSString* _Nullable logFile, BOOL logToStateDir, BOOL keepLocalAddresses, BOOL unsafeLogging, long maxPeers);
 
 /**
- * Start the Snowflake proxy.
+ * StartSnowflakeProxy - Start the Snowflake proxy.
 
 @param capacity Maximum concurrent clients. OPTIONAL. Defaults to 10, if 0.
 
@@ -79,17 +116,17 @@ FOUNDATION_EXPORT void IPtProxyStartSnowflake(NSString* _Nullable ice, NSString*
 FOUNDATION_EXPORT void IPtProxyStartSnowflakeProxy(long capacity, NSString* _Nullable broker, NSString* _Nullable relay, NSString* _Nullable stun, NSString* _Nullable logFile, BOOL keepLocalAddresses, BOOL unsafeLogging);
 
 /**
- * Stop the Obfs4Proxy.
+ * StopObfs4Proxy - Stop the Obfs4Proxy.
  */
 FOUNDATION_EXPORT void IPtProxyStopObfs4Proxy(void);
 
 /**
- * Stop the Snowflake client.
+ * StopSnowflake - Stop the Snowflake client.
  */
 FOUNDATION_EXPORT void IPtProxyStopSnowflake(void);
 
 /**
- * Stop the Snowflake proxy.
+ * StopSnowflakeProxy - Stop the Snowflake proxy.
  */
 FOUNDATION_EXPORT void IPtProxyStopSnowflakeProxy(void);
 
diff --git a/IPtProxy.framework/Versions/A/IPtProxy b/IPtProxy.framework/Versions/A/IPtProxy
index ecab973da170fe35b0484c140e8497aeee45b382..944ba3efddcfa5c15c0a92e848d96a3f125715d6 100644
Binary files a/IPtProxy.framework/Versions/A/IPtProxy and b/IPtProxy.framework/Versions/A/IPtProxy differ
diff --git a/IPtProxy.go/go.mod b/IPtProxy.go/go.mod
index b9d40397a34d847a57f3cc089e639e7a7336ba05..673fe99e66a1f490ac9a9314ae0cad6eb65ec78c 100644
--- a/IPtProxy.go/go.mod
+++ b/IPtProxy.go/go.mod
@@ -1,6 +1,6 @@
 module github.com/tladesignz/IPtProxy.git
 
-go 1.15
+go 1.16
 
 replace (
 	git.torproject.org/pluggable-transports/snowflake.git => ../snowflake
@@ -10,5 +10,5 @@ replace (
 require (
 	git.torproject.org/pluggable-transports/snowflake.git v0.0.0-00010101000000-000000000000
 	gitlab.com/yawning/obfs4.git v0.0.0-00010101000000-000000000000
-	golang.org/x/mobile v0.0.0-20201217150744-e6ae53a27f4f // indirect
+	golang.org/x/mobile v0.0.0-20210220033013-bdb1ca9a1e08 // indirect
 )
diff --git a/IPtProxy.go/go.sum b/IPtProxy.go/go.sum
index b35c317e3601b2251723d090d44cf6da1d9183c6..fa171e034b58e73a626db6881b0a3c2daffb3f3e 100644
--- a/IPtProxy.go/go.sum
+++ b/IPtProxy.go/go.sum
@@ -1,7 +1,5 @@
 cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
 cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
-git.schwanenlied.me/yawning/bsaes.git v0.0.0-20190320102049-26d1add596b6 h1:zOrl5/RvK48MxMrif6Z+/OpuYyRnvB+ZTrQWEV9VYb0=
-git.schwanenlied.me/yawning/bsaes.git v0.0.0-20190320102049-26d1add596b6/go.mod h1:BWqTsj8PgcPriQJGl7el20J/7TuT1d/hSyFDXMEpoEo=
 git.torproject.org/pluggable-transports/goptlib.git v1.0.0/go.mod h1:YT4XMSkuEXbtqlydr9+OxqFAyspUv0Gr9qhM3B++o/Q=
 git.torproject.org/pluggable-transports/goptlib.git v1.1.0 h1:LMQAA8pAho+QtYrrVNimJQiINNEwcwuuD99vezD/PAo=
 git.torproject.org/pluggable-transports/goptlib.git v1.1.0/go.mod h1:YT4XMSkuEXbtqlydr9+OxqFAyspUv0Gr9qhM3B++o/Q=
@@ -34,7 +32,6 @@ github.com/casbin/casbin/v2 v2.1.2/go.mod h1:YcPU1XXisHhLzuxH9coDNf2FbKpjGlbCg3n
 github.com/cenkalti/backoff v2.2.1+incompatible/go.mod h1:90ReRw6GdpyfrHakVjL/QHaoyV4aDUVVkXQJJJ3NXXM=
 github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
 github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
-github.com/cheekybits/genny v1.0.0/go.mod h1:+tQajlRqAUrPI7DOSpB0XAqZYtQakVtB7wXkRAgjxjQ=
 github.com/clbanning/x2j v0.0.0-20191024224557-825249438eec/go.mod h1:jMjuTZXRI4dUb/I5gc9Hdhagfvm9+RyrPryS/auMzxE=
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
 github.com/cockroachdb/datadriven v0.0.0-20190809214429-80d97fb3cbaa/go.mod h1:zn76sxSg3SzpJ0PPJaLDCu+Bu0Lg3sKTORVIj19EIF8=
@@ -45,6 +42,7 @@ github.com/coreos/pkg v0.0.0-20160727233714-3ac0863d7acf/go.mod h1:E3G3o1h8I7cfc
 github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
 github.com/creack/pty v1.1.7/go.mod h1:lj5s0c3V2DBrqTV7llrYr5NG6My20zk30Fl46Y7DoTY=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/dchest/siphash v1.2.1 h1:4cLinnzVJDKxTCl9B01807Yiy+W7ZzVHj/KIroQRvT4=
 github.com/dchest/siphash v1.2.1/go.mod h1:q+IRvb2gOSrUnYoPqHiyHXS0FOBBOdl6tONBlVnOnt4=
@@ -82,7 +80,6 @@ github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfU
 github.com/golang/groupcache v0.0.0-20160516000752-02826c3e7903/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
 github.com/golang/groupcache v0.0.0-20190702054246-869f871628b6/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
 github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
-github.com/golang/mock v1.2.0/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
 github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/golang/protobuf v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/golang/protobuf v1.3.2/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
@@ -104,11 +101,10 @@ github.com/google/go-cmp v0.5.4/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/
 github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
 github.com/google/renameio v0.1.0/go.mod h1:KWCgfxg9yswjAJkECMjeO8J8rahYeXnNhOm40UhjYkI=
 github.com/google/uuid v1.0.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
-github.com/google/uuid v1.1.2 h1:EVhdT+1Kseyi1/pUmXKaFxYsDNy9RQYkMWRH68J/W7Y=
-github.com/google/uuid v1.1.2/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/google/uuid v1.1.5/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/google/uuid v1.2.0 h1:qJYtXnJRWmpe7m/3XlyhrsLrEURqHRM2kxzoxXqyUDs=
 github.com/google/uuid v1.2.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1 h1:EGx4pi6eqNxGaHF6qqu48+N2wcFQ5qg5FXgOdqsJ5d8=
 github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1/go.mod h1:wJfORRmW1u3UXTncJ5qlYoELFm8eSnnEO6hX4iZ3EWY=
 github.com/gorilla/context v1.1.1/go.mod h1:kBGZzfjB9CEq2AlWe17Uuf7NDRt0dE0s8S51q0aT7Yg=
 github.com/gorilla/mux v1.6.2/go.mod h1:1lud6UwP+6orDFRuTfBEV8e9/aOM/c4fVVCaMa2zaAs=
@@ -150,6 +146,7 @@ github.com/json-iterator/go v1.1.6/go.mod h1:+SdeFBvtyEkXs7REEP0seUULqWtbJapLOCV
 github.com/json-iterator/go v1.1.7/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
 github.com/json-iterator/go v1.1.8/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
 github.com/json-iterator/go v1.1.10/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
+github.com/jtolds/gls v4.20.0+incompatible h1:xdiiI2gbIgH/gLH7ADydsJ1uDOEzR8yvV7C0MuV77Wo=
 github.com/jtolds/gls v4.20.0+incompatible/go.mod h1:QJZ7F/aHp+rZTRtaJ1ow/lLfFfVYBRgL+9YlvaHOwJU=
 github.com/julienschmidt/httprouter v1.2.0/go.mod h1:SYymIcj16QtmaHHD7aYtjjsJG7VTCxuUUipMqKk8s4w=
 github.com/julienschmidt/httprouter v1.3.0/go.mod h1:JR6WtHb+2LUe8TCKY3cZOxFyyO8IZAc4RVcycCCAKdM=
@@ -169,9 +166,7 @@ github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
 github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
 github.com/lightstep/lightstep-tracer-common/golang/gogo v0.0.0-20190605223551-bc2310a04743/go.mod h1:qklhhLq1aX+mtWk9cPHPzaBjWImj5ULL6C7HFJtXQMM=
 github.com/lightstep/lightstep-tracer-go v0.18.1/go.mod h1:jlF1pusYV4pidLvZ+XD0UBX0ZE6WURAspgAczcDHrL4=
-github.com/lucas-clemente/quic-go v0.7.1-0.20190401152353-907071221cf9/go.mod h1:PpMmPfPKO9nKJ/psF49ESTAGQSdfXxlg1otPbEB2nOw=
 github.com/lyft/protoc-gen-validate v0.0.13/go.mod h1:XbGvPuh87YZc5TdIa2/I4pLk0QoUACkjt2znoq26NVQ=
-github.com/marten-seemann/qtls v0.2.3/go.mod h1:xzjG7avBwGGbdZ8dTGxlBnLArsVKLvwmjgmPuiQEcYk=
 github.com/mattn/go-colorable v0.0.9/go.mod h1:9vuHe8Xs5qXnSaW/c/ABM9alt+Vo+STaOChaDxuIBZU=
 github.com/mattn/go-isatty v0.0.3/go.mod h1:M+lRXTBqGeGNdLjl/ufCoiOlB5xdOkqRJdNxMWT7Zi4=
 github.com/mattn/go-isatty v0.0.4/go.mod h1:M+lRXTBqGeGNdLjl/ufCoiOlB5xdOkqRJdNxMWT7Zi4=
@@ -225,85 +220,45 @@ github.com/pborman/uuid v1.2.0/go.mod h1:X/NO0urCmaxf9VXbdlT7C2Yzkj2IKimNn4k+gtP
 github.com/performancecopilot/speed v3.0.0+incompatible/go.mod h1:/CLtqpZ5gBg1M9iaPbIdPPGyKcA8hKdoy6hAWba7Yac=
 github.com/pierrec/lz4 v1.0.2-0.20190131084431-473cd7ce01a1/go.mod h1:3/3N9NVKO0jef7pBehbT1qWhCMrIgbYNnFAZCqQ5LRc=
 github.com/pierrec/lz4 v2.0.5+incompatible/go.mod h1:pdkljMzZIN41W+lC3N2tnIh5sFi+IEE17M5jbnwPHcY=
-github.com/pion/datachannel v1.4.15 h1:DrizUL97f9evDyoskyMLrFFFmOWCfXFGiGSbxmQyYt4=
-github.com/pion/datachannel v1.4.15/go.mod h1:yixWvOWPime7vRVuihP1GzZPBELQkO/ZM1mrBc2BNM8=
 github.com/pion/datachannel v1.4.21 h1:3ZvhNyfmxsAqltQrApLPQMhSFNA+aT87RqyCq4OXmf0=
 github.com/pion/datachannel v1.4.21/go.mod h1:oiNyP4gHx2DIwRzX/MFyH0Rz/Gz05OgBlayAI2hAWjg=
-github.com/pion/dtls/v2 v2.0.0-rc.7 h1:LDAIQDt1pcuAIJs7Q2EZ3PSl8MseCFA2nCW0YYSYCx0=
-github.com/pion/dtls/v2 v2.0.0-rc.7/go.mod h1:U199DvHpRBN0muE9+tVN4TMy1jvEhZIZ63lk4xkvVSk=
-github.com/pion/dtls/v2 v2.0.4 h1:WuUcqi6oYMu/noNTz92QrF1DaFj4eXbhQ6dzaaAwOiI=
 github.com/pion/dtls/v2 v2.0.4/go.mod h1:qAkFscX0ZHoI1E07RfYPoRw3manThveu+mlTDdOxoGI=
 github.com/pion/dtls/v2 v2.0.8 h1:reGe8rNIMfO/UAeFLqO61tl64t154Qfkr4U3Gzu1tsg=
 github.com/pion/dtls/v2 v2.0.8/go.mod h1:QuDII+8FVvk9Dp5t5vYIMTo7hh7uBkra+8QIm7QGm10=
-github.com/pion/ice v0.7.9 h1:RKol/0RFu3TIE8ZLIFV1A1e/QW22B6BZKvSG9sfawEM=
-github.com/pion/ice v0.7.9/go.mod h1:8BCwuq/EqAKhtUb8CIw2fWjVLotWOu13XJY09H3RVxA=
-github.com/pion/ice/v2 v2.0.14 h1:FxXxauyykf89SWAtkQCfnHkno6G8+bhRkNguSh9zU+4=
-github.com/pion/ice/v2 v2.0.14/go.mod h1:wqaUbOq5ObDNU5ox1hRsEst0rWfsKuH1zXjQFEWiZwM=
 github.com/pion/ice/v2 v2.0.15 h1:KZrwa2ciL9od8+TUVJiYTNsCW9J5lktBjGwW1MacEnQ=
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-github.com/pion/interceptor v0.0.8 h1:qsVJv9RF7mPq/RUnUV5iZCzxwGizO880FuiFKkEGQaE=
-github.com/pion/interceptor v0.0.8/go.mod h1:dHgEP5dtxOTf21MObuBAjJeAayPxLUAZjerGH8Xr07c=
 github.com/pion/interceptor v0.0.10 h1:dXFyFWRJFwmzQqyn0U8dUAbOJu+JJnMVAqxmvTu30B4=
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@@ -311,6 +266,7 @@ github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINE
 github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
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@@ -348,7 +304,9 @@ github.com/shurcooL/sanitized_anchor_name v1.0.0/go.mod h1:1NzhyTcUVG4SuEtjjoZeV
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@@ -364,6 +322,7 @@ github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UV
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@@ -378,11 +337,14 @@ github.com/urfave/cli v1.22.1/go.mod h1:Gos4lmkARVdJ6EkW0WaNv/tZAAMe9V7XWyB60NtX
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@@ -397,17 +359,13 @@ go.uber.org/zap v1.10.0/go.mod h1:vwi/ZaCAaUcBkycHslxD9B2zi4UTXhF60s6SWpuDF0Q=
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@@ -422,8 +380,8 @@ golang.org/x/lint v0.0.0-20190301231843-5614ed5bae6f/go.mod h1:UVdnD1Gm6xHRNCYTk
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 golang.org/x/mod v0.1.0/go.mod h1:0QHyrYULN0/3qlju5TqG8bIK38QM8yzMo5ekMj3DlcY=
 golang.org/x/mod v0.1.1-0.20191105210325-c90efee705ee/go.mod h1:QqPTAvyqsEbceGzBzNggFXnrqF1CaUcvgkdR5Ot7KZg=
@@ -447,14 +405,11 @@ golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLL
 golang.org/x/net v0.0.0-20190813141303-74dc4d7220e7/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20191126235420-ef20fe5d7933/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20191209160850-c0dbc17a3553/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
-golang.org/x/net v0.0.0-20200114155413-6afb5195e5aa h1:F+8P+gmewFQYRk6JoLQLwjBCTu3mcIURZfNkVweuRKA=
-golang.org/x/net v0.0.0-20200114155413-6afb5195e5aa/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20200226121028-0de0cce0169b/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20200520004742-59133d7f0dd7/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A=
 golang.org/x/net v0.0.0-20200625001655-4c5254603344/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
 golang.org/x/net v0.0.0-20201006153459-a7d1128ccaa0/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
 golang.org/x/net v0.0.0-20201031054903-ff519b6c9102/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
-golang.org/x/net v0.0.0-20201201195509-5d6afe98e0b7 h1:3uJsdck53FDIpWwLeAXlia9p4C8j0BO2xZrqzKpL0D8=
 golang.org/x/net v0.0.0-20201201195509-5d6afe98e0b7/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
 golang.org/x/net v0.0.0-20210119194325-5f4716e94777/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
 golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
@@ -478,26 +433,23 @@ golang.org/x/sys v0.0.0-20181107165924-66b7b1311ac8/go.mod h1:STP8DvDyc/dI5b8T5h
 golang.org/x/sys v0.0.0-20181116152217-5ac8a444bdc5/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20181122145206-62eef0e2fa9b/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
-golang.org/x/sys v0.0.0-20190228124157-a34e9553db1e/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
-golang.org/x/sys v0.0.0-20190329044733-9eb1bfa1ce65/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190422165155-953cdadca894/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190502145724-3ef323f4f1fd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190726091711-fc99dfbffb4e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20190804053845-51ab0e2deafa/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190826190057-c7b8b68b1456/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190904154756-749cb33beabd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20191005200804-aed5e4c7ecf9/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20191026070338-33540a1f6037/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20191120155948-bd437916bb0e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20191220142924-d4481acd189f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20191228213918-04cbcbbfeed8 h1:JA8d3MPx/IToSyXZG/RhwYEtfrKO1Fxrqe8KrkiLXKM=
 golang.org/x/sys v0.0.0-20191228213918-04cbcbbfeed8/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200106162015-b016eb3dc98e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200519105757-fe76b779f299/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200615200032-f1bc736245b1/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200625212154-ddb9806d33ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f h1:+Nyd8tzPX9R7BWHguqsrbFdRx3WQ/1ib8I44HXV5yTA=
 golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210124154548-22da62e12c0c/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@@ -508,7 +460,6 @@ golang.org/x/sys v0.0.0-20210317225723-c4fcb01b228e/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/term v0.0.0-20201117132131-f5c789dd3221/go.mod h1:Nr5EML6q2oocZ2LXRh80K7BxOlk5/8JxuGnuhpl+muw=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
-golang.org/x/text v0.3.2 h1:tW2bmiBqwgJj/UpqtC8EpXEZVYOwU0yG4iWbprSVAcs=
 golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
 golang.org/x/text v0.3.3 h1:cokOdA+Jmi5PJGXLlLllQSgYigAEfHXJAERHVMaCc2k=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
@@ -533,7 +484,6 @@ golang.org/x/tools v0.0.0-20200117012304-6edc0a871e69 h1:yBHHx+XZqXJBm6Exke3N7V9
 golang.org/x/tools v0.0.0-20200117012304-6edc0a871e69/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 h1:go1bK/D/BFZV2I8cIQd1NKEZ+0owSTG1fDTci4IqFcE=
 golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
@@ -578,6 +528,7 @@ gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.5/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 honnef.co/go/tools v0.0.0-20180728063816-88497007e858/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
diff --git a/IPtProxy.podspec b/IPtProxy.podspec
index 8127444492dc895c3dc1dc332f3ed45edc14b02f..be1a3331abbad21054ca9a116b06ea174dc7f608 100644
--- a/IPtProxy.podspec
+++ b/IPtProxy.podspec
@@ -8,7 +8,7 @@
 
 Pod::Spec.new do |s|
   s.name             = 'IPtProxy'
-  s.version          = '0.6.0'
+  s.version          = '1.0.0'
   s.summary          = 'Obfs4proxy and Snowflake Pluggable Transports for iOS'
 
   s.description      = <<-DESC
diff --git a/LICENSE b/LICENSE
index ce573f577d47125c4c36fee1af9504e30667dd53..0891770b812132a45356c6a1c3d3d5c1dbe9dcc5 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2020 Benjamin Erhart <berhart@netzarchitekten.com>
+Copyright (c) 2020 - 2021 Benjamin Erhart <berhart@netzarchitekten.com>
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/README.md b/README.md
index d462e91813b691c63e6ed5314fadc29596c75d1d..dd2f3c5a0f6511d485bfe18c5c9e245646fb1c2e 100644
--- a/README.md
+++ b/README.md
@@ -18,27 +18,37 @@ Problems solved in particular are:
   to avoid this.
 - Both PTs are gathered under one roof here, since you cannot have two
   `gomobile` frameworks as dependencies, since there are some common Go
-  runtime functions exported, which will create a name clash.
+  runtime functions exported, which would create a name clash.
 - Environment variable changes during runtime will not be recognized by
   `goptlib` when done from within Swift/Objective-C. Therefore, sensible
   values are hardcoded in the Go wrapper.
-- The ports where the PTs will listen on are hardcoded, since communicating
-  the used ports back to the app would be quite some work (e.g. trying to
-  read it from STDOUT) for very little benefit.
-- Snowflake and Obfs4proxy are patched to accept all configuration parameters 
+- Snowflake and Obfs4proxy are patched to accept all configuration parameters
   directly.
+- Free ports to be used are automatically found by this library and returned to the
+  consuming app. You can use the initial values for premature configuration just
+  fine in situations, where you can be pretty sure, they're going to be available
+  (typically on iOS). When that's not the case (e.g. multiple instances of your app
+  on a multi-user Android), you should first start the transports and then use the 
+  returned ports for configuration of other components (e.g. Tor). 
 
-Both PTs are contained at their latest `master` commit, as per 2021-03-07.
+Both PTs are contained at their latest `master` commit, as per 2021-05-27.
 
-## iOS Installation
+## iOS
+
+### Installation
 
 IPtProxy is available through [CocoaPods](https://cocoapods.org). To install
 it, simply add the following line to your `Podfile`:
 
 ```ruby
-pod 'IPtProxy', '~> 0.6'
+pod 'IPtProxy', '~> 1.0'
 ```
 
+### Getting Started
+
+[Onion Browser](https://github.com/OnionBrowser/OnionBrowser/blob/2.X/OnionBrowser/OnionManager.swift)
+is a recommended read for better understanding and configuration details.
+
 ## Android 
 
 ### Installation
@@ -47,7 +57,7 @@ IPtProxy is available through [JitPack](https://jitpack.io). To install
 it, simply add the following line to your `build.gradle` file:
 
 ```groovy
-implementation 'com.github.tladesignz:IPtProxy:0.6.0'
+implementation 'com.github.tladesignz:IPtProxy:1.0.0'
 ```
 
 And this to your root `build.gradle` at the end of repositories:
@@ -63,7 +73,8 @@ allprojects {
 
 ### Getting Started
 
-If you are building a new Android application be sure to declare that it uses the `INTERNET` permission in your Android Manifest:
+If you are building a new Android application be sure to declare that it uses the
+`INTERNET` permission in your Android Manifest:
 
 ```xml
 <?xml version="1.0" encoding="utf-8"?>
@@ -75,12 +86,14 @@ If you are building a new Android application be sure to declare that it uses th
 
 ```
 
-Before using IPtProxy you need to specify a place on disk for it to store its state information. We reccomend the path returned by `Context`'s `getCacheDir()`:
+Before using IPtProxy you need to specify a place on disk for it to store its state
+information. We recommend the path returned by `Context#getCacheDir()`:
 
 ```java
 File fileCacheDir = new File(getCacheDir(), "pt");
-if (!fileCacheDir.exists())
-    fileCacheDir.mkdir();
+
+if (!fileCacheDir.exists()) fileCacheDir.mkdir();
+
 IPtProxy.setStateLocation(fileCacheDir.getAbsolutePath());
 ```
 
@@ -90,7 +103,7 @@ IPtProxy.setStateLocation(fileCacheDir.getAbsolutePath());
 ### Requirements
 
 This repository contains a precompiled iOS and Android version of IPtProxy.
-If you want to compile it yourself, you'll need Go 1.15 as a prerequisite.
+If you want to compile it yourself, you'll need Go 1.16 as a prerequisite.
 
 You will also need Xcode installed when compiling for iOS and an Android NDK
 when compiling for Android.
@@ -128,7 +141,8 @@ rm -rf IPtProxy.aar IPtProxy-sources.jar && ./build.sh android
 This will create an `IPtProxy.aar` file, which you can directly drop in your app, 
 if you don't want to rely on JitPack.
 
-On certain CPU architectures `gobind` might fail with this error due to setting a flag that is no longer supported by Go 1.16
+On certain CPU architectures `gobind` might fail with this error due to setting
+a flag that is no longer supported by Go 1.16:
 
 ```
 go tool compile: exit status 1
diff --git a/jitpack.yml b/jitpack.yml
index d548b71663c92bc48f3cc3df1d6713d693d0db86..bfe7349acef13b682a39d891302353f3905624f0 100644
--- a/jitpack.yml
+++ b/jitpack.yml
@@ -1,3 +1,3 @@
 install:
   - FILE="-Dfile=IPtProxy.aar"
-  - mvn install:install-file $FILE -DgroupId=com.github.tladesignz -DartifactId=IPtProxy -Dversion=0.6.0 -Dpackaging=aar -DgeneratePom=true -Dsources=IPtProxy-sources.jar
+  - mvn install:install-file $FILE -DgroupId=com.github.tladesignz -DartifactId=IPtProxy -Dversion=1.0.0 -Dpackaging=aar -DgeneratePom=true -Dsources=IPtProxy-sources.jar
diff --git a/pom.xml b/pom.xml
index dd6538f435c2498dacebbedddded950bcf63d7ef..bfbc03e78eb05614f0475e820e232dd6b58cde77 100644
--- a/pom.xml
+++ b/pom.xml
@@ -5,5 +5,5 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.github.tladesignz</groupId>
   <artifactId>IPtProxy</artifactId>
-  <version>0.6.0</version>
+  <version>1.0.0</version>
 </project>