Modifies Migration Guide entry
Commit makes corrections to Migration Guide
entry for this task.
@@ -140,10 +140,13 @@ encouraging them to upgrade their software.
Remove support for truncated HMAC
---------------------------------
-This only affects TLS users who enabled `MBEDTLS_SSL_TRUNCATED_HMAC`
-`MBEDTLS_SSL_TRUNCATED_HMAC_COMPAT` and used the truncated HMAC extension.
-Please consider using a CCM-8 ciphersuite instead of the Truncated HMAC
-extension, or convincing your peer to upgrade their version of Mbed TLS.
+This affects users of truncated HMAC, that is, users who called
+`mbedtls_ssl_conf_truncated_hmac( ..., MBEDTLS_SSL_TRUNC_HMAC_ENABLED)`,
+regardless of whether the standard version was used or compatibility version
+(`MBEDTLS_SSL_TRUNCATED_HMAC_COMPAT`).
+
+The recommended migration path for people who want minimal overhead is to use a
+CCM-8 ciphersuite.
Remove support for TLS record-level compression
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