chore: changelog

Author: colin-axner

go/CHANGELOG.md

@@ -6,6 +6,7 @@
 - fix: guarantee that `spec.InnerSpec.MaxPrefixLength` < `spec.InnerSpec.MinPrefixLength` + `spec.InnerSpec.ChildSize` ([#369](https://github.com/cosmos/ics23/pull/369))
 - refactor: support for `BatchProof` and `CompressedBatchProof` is being dropped. 
     * The API's `BatchVerifyMembership`, `BatchVerifyNonMembership`, and `CombineProofs` have been removed. ([#390](https://github.com/cosmos/ics23/pull/390))
+    * The API's `IsCompressed`, `Compress`, and `Decompress` have been removed. ([#392](https://github.com/cosmos/ics23/pull/392))
 
 # v0.11.0