add release notes

RELEASE_NOTES.md

@@ -1,15 +1,15 @@
-# Replicated Security v4.4.0  Release Notes
+# Replicated Security v4.5.0  Release Notes
 
 ❗ ***Note this release is ONLY relevant to consumers***
 
 ## 📝 Changelog
-Check out the [changelog](https://github.com/cosmos/interchain-security/blob/v4.4.0/CHANGELOG.md) for a list of relevant changes or [compare all changes](https://github.com/cosmos/interchain-security/compare/v4.3.1...v4.4.0) from last release.
+Check out the [changelog](https://github.com/cosmos/interchain-security/blob/v4.5.0/CHANGELOG.md) for a list of relevant changes or [compare all changes](https://github.com/cosmos/interchain-security/compare/v4.4.0...v4.5.0) from last release.
 
 <!-- Add the following line for major or minor releases -->
-Refer to the [upgrading guide](https://github.com/cosmos/interchain-security/blob/release/v4.3.x/UPGRADING.md) when migrating from `v4.3.x` to `v4.4.x`.
+Refer to the [upgrading guide](https://github.com/cosmos/interchain-security/blob/release/v4.5.x/UPGRADING.md) when migrating from `v4.4.x` to `v4.5.x`.
 
 ## 🚀 Highlights
 
 <!-- Add any highlights of this release -->
 
-This release deprecates the [Soft Opt-out features](https://github.com/cosmos/interchain-security/blob/main/docs/docs/adrs/adr-009-soft-opt-out.md).
+This release improves the reward distribution logic for PSS by allowing consumer chains to be identified from the IBC transfer packet memo, see [#2290](https://github.com/cosmos/interchain-security/issues/2290) for more details.