diff --git a/README.md b/README.md
index bb69c78b2..0501e5ec5 100644
--- a/README.md
+++ b/README.md
@@ -7,6 +7,7 @@ A fast and user-transparent parallel simulator implementation for ns-3.
 More information about UNISON can be found in our EuroSys '24 paper (coming soon).
 
 Supported ns-3 version: [3.36.1](tree/unison-3.36.1), [3.37](tree/unison-3.37), [3.38](tree/unison-3.38), [3.39](tree/unison-3.36.1).
+We are trying to keep UNISON updated with the latest version of ns-3.
 You can find each unison-enabled ns-3 version via `unison-*` tags.
 
 ## Getting Started
@@ -65,15 +66,19 @@ MtpInterface::CriticalSection cs;
 
 at the beginning of your methods.
 
+In addition to the DCTCP example above, you can find other adapted examples in `examples/mtp`.
+
 ## Running Evaluations
 
-To evaluate UNISON, please checkout to [unison-evaluations](https://github.com/NASA-NJU/UNISON-for-ns-3/tree/unison-evaluations) branch.
+To evaluate UNISON, please switch to [unison-evaluations](https://github.com/NASA-NJU/UNISON-for-ns-3/tree/unison-evaluations) branch, which is based on ns-3.36.1.
 In this branch, you can find various topology models in the `scratch` folder.
 There are a lot of parameters you can set for each topology.
 We provided a utility script `exp.py` to compare these simulators and parameters.
-We also provided `process.py` to convert these raw experiment data to CSV files suitable for ploting.
+We also provided `process.py` to convert these raw experiment data to CSV files suitable for plotting.
 Please see the [README in that branch](https://github.com/NASA-NJU/UNISON-for-ns-3/tree/unison-evaluations) for more details.
 
+The evaluated artifact (based on ns-3.36.1) is persistently indexed by DOI [10.5281/zenodo.10077300](https://doi.org/10.5281/zenodo.10077300).
+
 ## Module Documentation
 
 ### 1. Overview
@@ -164,6 +169,14 @@ src/nix-vector-routing/model/nix-vector-routing.cc |   92 ++
 src/nix-vector-routing/model/nix-vector-routing.h  |    8 +
 ```
 
+Modifications to the `mpi` module to make it thread-safe with the hybrid simulator:
+
+```
+src/mpi/model/granted-time-window-mpi-interface.cc |   25 +
+src/mpi/model/granted-time-window-mpi-interface.h  |    7 +
+src/mpi/model/mpi-interface.cc                     |    3 +-
+```
+
 ### 3. Logging
 
 The reason behind UNISON's fast speed is that it divides the network into multiple logical processes (LPs) with fine granularity and schedules them dynamically.
@@ -197,7 +210,7 @@ Config::SetDefault("ns3::HybridSimulatorImpl::MinLookahead", TimeValue(NanoSecon
 The scheduling method determines the priority (estimated completion time of the next round) of each logical process.
 There are five available options:
 
-- `ByExecutionTime`: LPs with higher execution time of the last round will have higher priority.
+- `ByExecutionTime`: LPs with a higher execution time of the last round will have higher priority.
 - `ByPendingEventCount`: LPs with more pending events of this round will have higher priority.
 - `ByEventCount`: LPs with more pending events of this round will have higher priority.
 - `BySimulationTime`: LPs with larger current clock time will have higher priority.
diff --git a/examples/mtp/dctcp-example-mtp.cc b/examples/mtp/dctcp-example-mtp.cc
index ede0d0c63..db855d86f 100644
--- a/examples/mtp/dctcp-example-mtp.cc
+++ b/examples/mtp/dctcp-example-mtp.cc
@@ -303,8 +303,6 @@ main(int argc, char* argv[])
     Time startTime = Seconds(0);
     Time stopTime = flowStartupWindow + convergenceTime + measurementWindow;
 
-    Time clientStartTime = startTime;
-
     rxS1R1Bytes.reserve(10);
     rxS2R2Bytes.reserve(20);
     rxS3R1Bytes.reserve(10);
@@ -495,7 +493,7 @@ main(int argc, char* argv[])
         AddressValue remoteAddress(InetSocketAddress(ipR2T2[i].GetAddress(0), port));
         clientHelper1.SetAttribute("Remote", remoteAddress);
         clientApps1.Add(clientHelper1.Install(S2.Get(i)));
-        clientApps1.Start(i * flowStartupWindow / 20 + clientStartTime + MilliSeconds(i * 5));
+        clientApps1.Start(i * flowStartupWindow / 20 + startTime + MilliSeconds(i * 5));
         clientApps1.Stop(stopTime);
     }
 
@@ -536,13 +534,12 @@ main(int argc, char* argv[])
         if (i < 10)
         {
             clientApps1.Add(clientHelper1.Install(S1.Get(i)));
-            clientApps1.Start(i * flowStartupWindow / 10 + clientStartTime + MilliSeconds(i * 5));
+            clientApps1.Start(i * flowStartupWindow / 10 + startTime + MilliSeconds(i * 5));
         }
         else
         {
             clientApps1.Add(clientHelper1.Install(S3.Get(i - 10)));
-            clientApps1.Start((i - 10) * flowStartupWindow / 10 + clientStartTime +
-                              MilliSeconds(i * 5));
+            clientApps1.Start((i - 10) * flowStartupWindow / 10 + startTime + MilliSeconds(i * 5));
         }
 
         clientApps1.Stop(stopTime);