diff --git a/external/README.md b/external/README.md
index 1a277f4385..9e8989040e 100644
--- a/external/README.md
+++ b/external/README.md
@@ -16,7 +16,7 @@
 
 ## Bullet
 - Upstream: https://github.com/bulletphysics/bullet3
-- Version: 3.07
+- Version: 3.08
 - License: zlib
 
 ## c-ares
diff --git a/external/bullet/BulletDynamics/Featherstone/btMultiBody.cpp b/external/bullet/BulletDynamics/Featherstone/btMultiBody.cpp
index bec8c6530d..7cb92fa3b4 100644
--- a/external/bullet/BulletDynamics/Featherstone/btMultiBody.cpp
+++ b/external/bullet/BulletDynamics/Featherstone/btMultiBody.cpp
@@ -125,7 +125,8 @@ btMultiBody::btMultiBody(int n_links,
 	  m_posVarCnt(0),
 	  m_useRK4(false),
 	  m_useGlobalVelocities(false),
-	  m_internalNeedsJointFeedback(false)
+	  m_internalNeedsJointFeedback(false),
+		m_kinematic_calculate_velocity(false)
 {
 	m_cachedInertiaTopLeft.setValue(0, 0, 0, 0, 0, 0, 0, 0, 0);
 	m_cachedInertiaTopRight.setValue(0, 0, 0, 0, 0, 0, 0, 0, 0);
@@ -2381,7 +2382,7 @@ const char *btMultiBody::serialize(void *dataBuffer, class btSerializer *seriali
 void btMultiBody::saveKinematicState(btScalar timeStep)
 {
 	//todo: clamp to some (user definable) safe minimum timestep, to limit maximum angular/linear velocities
-	if (timeStep != btScalar(0.))
+	if (m_kinematic_calculate_velocity && timeStep != btScalar(0.))
 	{
 		btVector3 linearVelocity, angularVelocity;
 		btTransformUtil::calculateVelocity(getInterpolateBaseWorldTransform(), getBaseWorldTransform(), timeStep, linearVelocity, angularVelocity);
diff --git a/external/bullet/BulletDynamics/Featherstone/btMultiBody.h b/external/bullet/BulletDynamics/Featherstone/btMultiBody.h
index 25112a6805..5a3efc9414 100644
--- a/external/bullet/BulletDynamics/Featherstone/btMultiBody.h
+++ b/external/bullet/BulletDynamics/Featherstone/btMultiBody.h
@@ -823,6 +823,9 @@ private:
 
 	///the m_needsJointFeedback gets updated/computed during the stepVelocitiesMultiDof and it for internal usage only
 	bool m_internalNeedsJointFeedback;
+
+  //If enabled, calculate the velocity based on kinematic transform changes. Currently only implemented for the base.
+	bool m_kinematic_calculate_velocity;
 };
 
 struct btMultiBodyLinkDoubleData
diff --git a/external/bullet/LinearMath/btQuickprof.cpp b/external/bullet/LinearMath/btQuickprof.cpp
index 86fd1d7812..33b51eb763 100644
--- a/external/bullet/LinearMath/btQuickprof.cpp
+++ b/external/bullet/LinearMath/btQuickprof.cpp
@@ -720,6 +720,9 @@ void btLeaveProfileZoneDefault()
   #define BT_HAVE_TLS 1
 #elif __linux__
   #define BT_HAVE_TLS 1
+#elif defined(__FreeBSD__) || defined(__NetBSD__)
+  // TODO: At the moment disabling purposely OpenBSD, albeit tls support exists but not fully functioning
+  #define BT_HAVE_TLS 1
 #endif
 
 // __thread is broken on Andorid clang until r12b. See
diff --git a/external/bullet/LinearMath/btScalar.h b/external/bullet/LinearMath/btScalar.h
index a92caf1817..36b90cc944 100644
--- a/external/bullet/LinearMath/btScalar.h
+++ b/external/bullet/LinearMath/btScalar.h
@@ -25,7 +25,7 @@ subject to the following restrictions:
 #include <float.h>
 
 /* SVN $Revision$ on $Date$ from http://bullet.googlecode.com*/
-#define BT_BULLET_VERSION 305
+#define BT_BULLET_VERSION 307
 
 inline int btGetVersion()
 {
diff --git a/external/bullet/LinearMath/btSerializer.h b/external/bullet/LinearMath/btSerializer.h
index 6ea36fbb39..4d1c760e24 100644
--- a/external/bullet/LinearMath/btSerializer.h
+++ b/external/bullet/LinearMath/btSerializer.h
@@ -481,7 +481,7 @@ public:
 
 		buffer[9] = '3';
 		buffer[10] = '0';
-		buffer[11] = '5';
+		buffer[11] = '8';
 	}
 
 	virtual void startSerialization()