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-rw-r--r--docs/ref/migrate/nng1.md7
1 files changed, 7 insertions, 0 deletions
diff --git a/docs/ref/migrate/nng1.md b/docs/ref/migrate/nng1.md
index 1d903215..2b305b75 100644
--- a/docs/ref/migrate/nng1.md
+++ b/docs/ref/migrate/nng1.md
@@ -166,6 +166,13 @@ The use of `*` to act as a wild card meaning all local interface addresses
is removed. The empty string already performs this function, and unlike
`*` is RFC compliant.
+## URL Option Removed
+
+The `NNG_OPT_URL` option has been removed.
+It is replaced by the type safe [`nng_dialer_get_url`] and
+[`nng_listener_get_url`] functions, which return an [`nng_url`]
+structure instead of a string.
+
## URL Structure Changes
The details of [`nng_url`] have changed significantly, and direct