diff --git a/README.md b/README.md
index 414ddcf..c744373 100644
--- a/README.md
+++ b/README.md
@@ -115,3 +115,6 @@ julia> Impute.interp(df) |> Impute.locf() |> Impute.nocb()
 
 - Your approach should depend on the properties of you data (e.g., [MCAR, MAR, MNAR](https://en.wikipedia.org/wiki/Missing_data#Types_of_missing_data)).
 - In-place calls aren't guaranteedto mutate the original data, but it will try avoid copying if possible.
+  In the future, it may be possible to detect whether in-place operations are permitted on an array or table using traits:
+    - https://github.com/JuliaData/Tables.jl/issues/116
+    - https://github.com/JuliaDiffEq/ArrayInterface.jl/issues/22
diff --git a/docs/src/index.md b/docs/src/index.md
index 07bc71f..a2ddf2e 100644
--- a/docs/src/index.md
+++ b/docs/src/index.md
@@ -56,3 +56,6 @@ Impute.interp(df) |> Impute.locf() |> Impute.nocb()
 
 - Your approach should depend on the properties of you data (e.g., [MCAR, MAR, MNAR](https://en.wikipedia.org/wiki/Missing_data#Types_of_missing_data)).
 - In-place calls aren't guaranteedto mutate the original data, but it will try avoid copying if possible.
+  In the future, it may be possible to detect whether in-place operations are permitted on an array or table using traits:
+    - https://github.com/JuliaData/Tables.jl/issues/116
+    - https://github.com/JuliaDiffEq/ArrayInterface.jl/issues/22