diff --git a/chapters/authorization-authentication.adoc b/chapters/authorization-authentication.adoc
index 0b0c3b8f..00f82a74 100644
--- a/chapters/authorization-authentication.adoc
+++ b/chapters/authorization-authentication.adoc
@@ -742,8 +742,8 @@ RETURN <data>
 ----
 
 ((("Proof of Existence")))((("DOCPROOF prefix")))The data portion is
-limited to 80 bytes and most often represents a hash, such as the output
-from the SHA256 algorithm (32 bytes). Many applications put a prefix in
+often represents a hash, such as the output
+from the SHA256 algorithm (32 bytes). Some applications put a prefix in
 front of the data to help identify the application. For example, the
 http://proofofexistence.com[Proof of Existence] digital notarization
 service uses the 8-byte prefix +DOCPROOF+, which is ASCII encoded as +44
@@ -763,27 +763,6 @@ script to "RETURN" with a +FALSE+ and halt. Thus, if you accidentally
 reference a +RETURN+ output as an input in a transaction, that
 transaction is invalid.
 
-A standard transaction (one that conforms to the +IsStandard()+ checks)
-can have only one +RETURN+ output. However, a single +RETURN+ output can
-be combined in a transaction with outputs of any other type.
-
-Two new command-line options have been added in Bitcoin Core as of
-version 0.10. The option +datacarrier+ controls relay and mining of
-+RETURN+ transactions, with the default set to "1" to allow them. The
-option +datacarriersize+ takes a numeric argument specifying the maximum
-size in bytes of the +RETURN+ script, 83 bytes by default, which, allows
-for a maximum of 80 bytes of +RETURN+ data plus one byte of +RETURN+
-opcode and two bytes of +PUSHDATA+ opcode.
-
-[NOTE]
-====
-+RETURN+ was initially proposed with a limit of 80 bytes, but the limit
-was reduced to 40 bytes when the feature was released. In February 2015,
-in version 0.10 of Bitcoin Core, the limit was raised back to 80 bytes.
-Nodes may choose not to relay or mine +RETURN+, or only relay and mine
-+RETURN+ containing less than 80 bytes of data.
-====
-
 [[locktime_limitations]]
 ===== Transaction locktime limitations