diff --git a/docs/usermanual.md b/docs/usermanual.md
index 8371cec3..f2e284ce 100644
--- a/docs/usermanual.md
+++ b/docs/usermanual.md
@@ -97,14 +97,6 @@ weatherStation167@ping|Ping ok
 
 In this case, the Weather station replies with a String value indicating everything has worked fine.
 
-#### Bidirectionality Syntax
-
-The latest versions of the Provisioning API allow for the definition of reverse expressions to keep data shared between
-the Context Broker and the device in sync (regardless of whether the data originated in plain data from the device or in
-a transformation expression in the IoTAgent). In this cases, when a reverse expression is defined, whenever the
-bidirectional attribute is modified, the IoTAgent sends a command to the original device, with the name defined in the
-reverse expression attribute and the ID of the device (see Commands Syntax, just above).
-
 #### Commands transformations
 
 It is possible to use expressions to transform commands, in the same way that other attributes could do it, that is
@@ -136,8 +128,6 @@ the following meanings:
 
 #### Casting to JSON native format
 
-**FIXME**: this need to be tested, once IOTA Lib 3.0.0 gets released and IOTA UL 2.0.0 (using it) gets released.
-
 Ultralight 2.0 defines a method that allows to use native JSON types in the NGSI v2. For example: The IotAgent receives
 this UL measure: