diff --git a/README.md b/README.md
index 791bed2599..bff6433b89 100644
--- a/README.md
+++ b/README.md
@@ -52,19 +52,21 @@ All tests support the same set of arguments :
     * `-i,--stepbytes <increment size>` fixed increment between sizes. Default : (max-min)/10.
     * `-f,--stepfactor <increment factor>` multiplication factor between sizes. Default : disabled.
 * NCCL operations arguments
-  * `-o,--op <sum/prod/min/max/all>` Specify which reduction operation to perform. Only relevant for reduction operations like Allreduce, Reduce or ReduceScatter. Default : Sum.
+  * `-o,--op <sum/prod/min/max/avg/all>` Specify which reduction operation to perform. Only relevant for reduction operations like Allreduce, Reduce or ReduceScatter. Default : Sum.
   * `-d,--datatype <nccltype/all>` Specify which datatype to use. Default : Float.
   * `-r,--root <root/all>` Specify which root to use. Only for operations with a root like broadcast or reduce. Default : 0.
 * Performance
   * `-n,--iters <iteration count>` number of iterations. Default : 20.
   * `-w,--warmup_iters <warmup iteration count>` number of warmup iterations (not timed). Default : 5.
   * `-m,--agg_iters <aggregation count>` number of operations to aggregate together in each iteration. Default : 1.
+  * `-a,--average <0/1/2/3>` Report performance as an average across all ranks (MPI=1 only). <0=Rank0,1=Avg,2=Min,3=Max>. Default : 1.
 * Test operation
   * `-p,--parallel_init <0/1>` use threads to initialize NCCL in parallel. Default : 0.
   * `-c,--check <0/1>` check correctness of results. This can be quite slow on large numbers of GPUs. Default : 1.
   * `-z,--blocking <0/1>` Make NCCL collective blocking, i.e. have CPUs wait and sync after each collective. Default : 0.
+  * `-G,--cudagraph <num graph launches>` Capture iterations as a CUDA graph and then replay specified number of times. Default : 0.
 
 ## Copyright
 
-NCCL tests are provided under the BSD license. All source code and accompanying documentation is copyright (c) 2016-2019, NVIDIA CORPORATION. All rights reserved.
+NCCL tests are provided under the BSD license. All source code and accompanying documentation is copyright (c) 2016-2021, NVIDIA CORPORATION. All rights reserved.