chore: update CHANGELOG_ORAI

Author: ducphamle2

CHANGELOG_ORAI.md

@@ -1,4 +1,15 @@
-## Unreleased
+# CHANGELOG
+
+## v0.50.0
+
+<!--
+    Add a summary for the release here.
+
+    If you don't change this message, or if this file is empty, the release
+    will not be created. -->
+
+Upgrade Oraichain mainnet to v0.50.0 with Cosmos SDK v0.50.10, CometBFT 0.38.12 and more. This upgrade allows Oraichain to apply strategic features, improve performances and user 
+experiences.
 
 ### BREAKING CHANGE
 
@@ -8,6 +19,11 @@
   ([\#19](https://github.com/oraichain/wasmd/issues/19))
 - IAVL 1.0 enhances performance
   ([\#19](https://github.com/oraichain/wasmd/issues/19))
+- Stop supporting cosmwasm contracts version <= 0.13.x
+  ([\#23](https://github.com/oraichain/wasmd/issues/23))
+- Stop using `evmutil` module ([\#25](https://github.com/oraichain/wasmd/issues/25))
+- Stop using `intertx` module
+  ([\#24](https://github.com/oraichain/wasmd/issues/24))
 - Upgrade Oraichain mainnet to Cosmos SDK 0.50.10 with module
   enhancements like gov module emergency proposals; advanced IBC features
   ([\#19](https://github.com/oraichain/wasmd/issues/19))
@@ -24,3 +40,12 @@
 - Drastically reduce load time when running a forked node using a heavy genesis
   state. Also, significantly reduce memory consumption when loading a large
   genesis file ([\#20](https://github.com/oraichain/wasmd/issues/20))
+
+---
+
+Oraichain Wasmd is a fork of [Wasmd](https://github.com/cosmwasm/wasmd) as of October 2024.
+
+## CHANGELOG
+
+Read our [README](../README.md) for mor information
+