Lifting the 100000-byte transaction size limit is likely to be delayed to Sapling.

Signed-off-by: Daira Hopwood <daira@jacaranda.org>

protocol/protocol.tex

@@ -5107,7 +5107,7 @@ The encoding of $\joinSplitPubKey$ and the data to be signed are specified in
         on the Ed25519 curve, in the encoding specified by \cite{BDLSY2012}. Note that it is
         \emph{not} required that the encoding of the y-coordinate of the public key is
         less than $2^{255}-19$.
-  \prenuzeroitem{The encoded size of the \transaction{} \MUST be less than or equal to
+  \sproutonlyitem{The encoded size of the \transaction{} \MUST be less than or equal to
         $100000$ bytes.}
   \item \todo{Coinbase maturity rule.}
   \item \todo{Other rules inherited from \Bitcoin.}
@@ -6347,6 +6347,16 @@ Daira Hopwood, Sean Bowe, and Jack Grigg.
 \introsection
 \nsection{Change History}
 
+\subparagraph{2018.0-beta-9}
+
+\begin{itemize}
+\nuzero{
+    \item Delay lifting the 100000-byte \transaction size limit from \NUZero to
+          \Sapling.
+}
+\end{itemize}
+
+\introlist
 \subparagraph{2018.0-beta-8}
 
 \begin{itemize}