chore: update changelog (#422)

Co-authored-by: Carlos Rodriguez <crodveg@gmail.com>

CHANGELOG.md

@@ -43,15 +43,42 @@ Ref: https://keepachangelog.com/en/1.0.0/
 
 ### State Machine Breaking
 
-* (24-host) [#\344](https://github.com/cosmos/ibc-go/pull/344) Increase port identifier limit to 128 characters. 
-
 ### Improvements
-* [\#373](https://github.com/cosmos/ibc-go/pull/375) Added optional field `PacketCommitmentSequences` to `QueryPacketAcknowledgementsRequest` to provide filtering of packet acknowledgements
 
 ### Features
-* [\#372](https://github.com/cosmos/ibc-go/pull/372) New CLI command `query ibc client status <client id>` to get the current activity status of a client
+
 * [\#384](https://github.com/cosmos/ibc-go/pull/384) Added `NegotiateAppVersion` method to `IBCModule` interface supported by a gRPC query service in `05-port`. This provides routing of requests to the desired application module callback, which in turn performs application version negotiation.
 
+## [v1.2.0](https://github.com/cosmos/ibc-go/releases/tag/v1.2.0) - 2021-09-10
+
+### State Machine Breaking
+
+* (24-host) [\#344](https://github.com/cosmos/ibc-go/pull/344) Increase port identifier limit to 128 characters.
+
+### Improvements
+
+* [\#373](https://github.com/cosmos/ibc-go/pull/375) Added optional field `PacketCommitmentSequences` to `QueryPacketAcknowledgementsRequest` to provide filtering of packet acknowledgements.
+
+### Features
+
+* [\#372](https://github.com/cosmos/ibc-go/pull/372) New CLI command `query ibc client status <client id>` to get the current activity status of a client.
+
+### Dependencies
+
+* [\#386](https://github.com/cosmos/ibc-go/pull/386) Bump [tendermint](https://github.com/tendermint/tendermint) from 0.34.12 to 0.34.13.
+
+## [v1.1.0](https://github.com/cosmos/ibc-go/releases/tag/v1.1.0) - 2021-09-03
+
+### Dependencies
+
+* [\#367](https://github.com/cosmos/ibc-go/pull/367) Bump [cosmos-sdk](https://github.com/cosmos/cosmos-sdk) from 0.43 to 0.44.
+
+## [v1.0.1](https://github.com/cosmos/ibc-go/releases/tag/v1.0.1) - 2021-08-25
+
+### Improvements
+
+* [\#343](https://github.com/cosmos/ibc-go/pull/343) Create helper functions for publishing of packet sent and acknowledgement sent events.
+
 ## [v1.0.0](https://github.com/cosmos/ibc-go/releases/tag/v1.0.0) - 2021-08-10
 
 ### Bug Fixes
@@ -66,6 +93,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 * (modules/light-clients/06-solomachine) [\#153](https://github.com/cosmos/ibc-go/pull/153) Fix solo machine proof height sequence mismatch bug.
 * (modules/light-clients/06-solomachine) [\#122](https://github.com/cosmos/ibc-go/pull/122) Fix solo machine merkle prefix casting bug. 
 * (modules/light-clients/06-solomachine) [\#120](https://github.com/cosmos/ibc-go/pull/120) Fix solo machine handshake verification bug. 
+* (modules/light-clients/06-solomachine) [\#153](https://github.com/cosmos/ibc-go/pull/153) fix solo machine connection handshake failure at `ConnectionOpenAck`.
 
 ### API Breaking