Update release notes

RELEASES.md

@@ -1,5 +1,41 @@
 # Release Notes
 
+## [v1.11.3](https://github.com/ava-labs/avalanchego/releases/tag/v1.11.3)
+
+This version is backwards compatible to [v1.11.0](https://github.com/ava-labs/avalanchego/releases/tag/v1.11.0). It is optional, but encouraged.
+
+The plugin version is updated to `35` all plugins must update to be compatible.
+
+### APIs
+
+- Removed:
+  - `platform.GetPendingValidators`
+  - `platform.GetMaxStakeAmount`
+
+### Configs
+
+- Removed avalanchego configs:
+  - `network-peer-list-validator-gossip-size`
+  - `network-peer-list-non-validator-gossip-size`
+  - `network-peer-list-peers-gossip-size`
+  - `network-peer-list-gossip-frequency`
+  - `consensus-accepted-frontier-gossip-validator-size`
+  - `consensus-accepted-frontier-gossip-non-validator-size`
+	- `consensus-accepted-frontier-gossip-peer-size`
+	- `consensus-on-accept-gossip-validator-size`
+	- `consensus-on-accept-gossip-non-validator-size`
+	- `consensus-on-accept-gossip-peer-size`
+- Added P-chain, X-chain, and C-chain configs:
+  - `push-gossip-percent-stake`
+
+### Fixes
+
+- Fixed p2p SDK validator sampling to only return connected validators
+
+### What's Changed
+
+**Full Changelog**: https://github.com/ava-labs/avalanchego/compare/v1.11.2...v1.11.3
+
 ## [v1.11.2](https://github.com/ava-labs/avalanchego/releases/tag/v1.11.2)
 
 This version is backwards compatible to [v1.11.0](https://github.com/ava-labs/avalanchego/releases/tag/v1.11.0). It is optional, but strongly encouraged.