diff --git a/.changelog/unreleased/breaking-changes/90-tendermint-proto-0.31.md b/.changelog/v0.30.0/breaking-changes/90-tendermint-proto-0.31.md
similarity index 100%
rename from .changelog/unreleased/breaking-changes/90-tendermint-proto-0.31.md
rename to .changelog/v0.30.0/breaking-changes/90-tendermint-proto-0.31.md
diff --git a/.changelog/unreleased/breaking-changes/10-extern-ics23.md b/.changelog/v0.31.0-alpha.1/breaking-changes/10-extern-ics23.md
similarity index 53%
rename from .changelog/unreleased/breaking-changes/10-extern-ics23.md
rename to .changelog/v0.31.0-alpha.1/breaking-changes/10-extern-ics23.md
index 83cc169f..ddedbaeb 100644
--- a/.changelog/unreleased/breaking-changes/10-extern-ics23.md
+++ b/.changelog/v0.31.0-alpha.1/breaking-changes/10-extern-ics23.md
@@ -1,5 +1,8 @@
 - Re-export the `ics23.cosmos.v1` Protobuf definitions from the `ics23` crate instead of including them directly in this crate.
   The proto definitions are exported both under the `ibc_proto::cosmos::ics23::v1` module and under the `ibc_proto::ics23` module
-  for backward source compatiblity. This is nonetheless a breaking change as it may break compilation or trigger warnings
+  in an attempt to preserve backward source compatiblity.
+  This is nonetheless a breaking change as it may break compilation or trigger warnings
   in code which relied on these definitions being different than the ones in `ics23`.
+  Moreover, because the code generated by `pbjson-build` is not `no_std` compatible, the serde annotations
+  on the generated protos are only enabled when the `std` feature of `ibc-proto` is enabled.
   ([\#10](https://github.com/cosmos/ibc-proto-rs/issues/10))
diff --git a/.changelog/v0.31.0-alpha.1/summary.md b/.changelog/v0.31.0-alpha.1/summary.md
new file mode 100644
index 00000000..610ee320
--- /dev/null
+++ b/.changelog/v0.31.0-alpha.1/summary.md
@@ -0,0 +1,12 @@
+This is the first alpha release of `ibc-proto` v0.31.0.
+
+The proto definitions for `cosmos.ics23.v1` messages are now re-exported from the [`ics23`](https://crates.io/crates/ics23) crate under both the `ibc_proto::cosmos::ics23::v1` and `ibc_proto::ics23` modules.
+The latter will removed in a subsequent release.
+
+This is nonetheless a breaking change as it may break compilation or trigger warnings in code which relied on these definitions being different than the ones in `ics23`.
+
+Moreover, because the code generated by `pbjson-build` is not `no_std` compatible, the serde annotations on the generated protos are only enabled when the `std` feature of `ibc-proto` is enabled.
+
+> **Warning**
+> Do no update this alpha release if you are depending on JSON serialization being available in `no_std` context.
+> Instead, wait until thee final v0.31.0 release which will restore JSON serialization in `no_std` context.
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7606afa7..3b0813bb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,33 @@
 # CHANGELOG
 
+## v0.31.0-alpha.1
+
+*May 1st, 2023*
+ 
+This is the first alpha release of `ibc-proto` v0.31.0.
+ 
+The proto definitions for `cosmos.ics23.v1` messages are now re-exported from the [`ics23`](https://crates.io/crates/ics23) crate under both the `ibc_proto::cosmos::ics23::v1` >
+The latter will removed in a subsequent release.
+ 
+This is nonetheless a breaking change as it may break compilation or trigger warnings in code which relied on these definitions being different than the ones in `ics23`.
+ 
+Moreover, because the code generated by `pbjson-build` is not `no_std` compatible, the serde annotations on the generated protos are only enabled when the `std` feature of `ibc>
+ 
+> **Warning**
+> Do no update this alpha release if you are depending on JSON serialization being available in `no_std` context.
+> Instead, wait until thee final v0.31.0 release which will restore JSON serialization in `no_std` context.
+  
+### BREAKING CHANGES
+ 
+- Re-export the `ics23.cosmos.v1` Protobuf definitions from the `ics23` crate instead of including them directly in this crate.
+  The proto definitions are exported both under the `ibc_proto::cosmos::ics23::v1` module and under the `ibc_proto::ics23` module
+  in an attempt to preserve backward source compatiblity.
+  This is nonetheless a breaking change as it may break compilation or trigger warnings
+  in code which relied on these definitions being different than the ones in `ics23`.
+  Moreover, because the code generated by `pbjson-build` is not `no_std` compatible, the serde annotations
+  on the generated protos are only enabled when the `std` feature of `ibc-proto` is enabled.
+  ([\#10](https://github.com/cosmos/ibc-proto-rs/issues/10))
+
 ## v0.30.0
 
 *April 20th, 2023*
diff --git a/Cargo.toml b/Cargo.toml
index 3056c658..ef715b17 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name         = "ibc-proto"
-version      = "0.30.0"
+version      = "0.31.0-alpha.1"
 authors      = ["Informal Systems <hello@informal.systems>"]
 edition      = "2021"
 license      = "Apache-2.0"