chore: add changelog (#630)

* chore: add changelog

* chore: add changelog v27

CHANGELOG.md

@@ -38,9 +38,9 @@ Ref: https://keepachangelog.com/en/1.0.0/
 
 ## Osmosis Specific Info
 
-## v26
+## v27
 
-## [v0.50.x-v26-osmo-1](https://github.com/osmosis-labs/cosmos-sdk/releases/tag/TODO)
+## [v0.50.10-v27-osmo-1](https://github.com/osmosis-labs/cosmos-sdk/releases/tag/TODO)
 
 This v0.50.x branch was created at the [bd886bb4b03fdfc52bdc1fa2f98e960316604f89](https://github.com/cosmos/cosmos-sdk/commit/bd886bb4b03fdfc52bdc1fa2f98e960316604f89) commit of the [release/v0.50.x](https://github.com/cosmos/cosmos-sdk/commits/release/v0.50.x/) branch. If you catch this fork up with the latest changes from upstream, please start at the commit after the one mentioned above, and work your way to the tip (or desired commit) of the upstream branch. Then, update this message with the new commit hash. Also, when you add a new PRs to this branch on Osmosis and it is not yet upstreamed, make sure you add it both directly below AND in the respective release section of this file.
 
@@ -64,9 +64,69 @@ This v0.50.x branch was created at the [bd886bb4b03fdfc52bdc1fa2f98e960316604f89
 
 ### Osmosis Specific PRs (should not upstream)
 
-* Fix Supply Offsets
+* Supply offset fix
     * [#629](https://github.com/osmosis-labs/cosmos-sdk/pull/629) fix: add old supply offset functions
 
+* Staking migration removal
+    * [#627](https://github.com/osmosis-labs/cosmos-sdk/pull/627) chore: remove old migration code
+
+* Slashing
+    * [0609929](https://github.com/osmosis-labs/cosmos-sdk/commit/0609929d2ddfd845aebfe53622176660f8392fcb) Osmosis specific key migration slashing changes, due to implementing it early in v0.47.x
+
+* Distribution
+    * [#527](https://github.com/osmosis-labs/cosmos-sdk/pull/527) Distribute every 50 blocks
+
+* Performance (Already upstreamed but not in this version)
+    * [#538](https://github.com/osmosis-labs/cosmos-sdk/pull/538) Slight speedup to Slashing BeginBlock logic
+    * [#570](https://github.com/osmosis-labs/cosmos-sdk/pull/570) Removal of regex usage on denom validation
+
+* Per module fast nodes
+    * [#552](https://github.com/osmosis-labs/cosmos-sdk/pull/552) Per module fast nodes implementation
+    * [715f32](https://github.com/osmosis-labs/cosmos-sdk/commit/715f3216416030f5b1bb30f02882ee38e238c1a2) Replace store imports with fast nodes
+    * [#572](https://github.com/osmosis-labs/cosmos-sdk/pull/572) Fix fast nodes whitelist parsing
+
+* IAVL
+    * [#593](https://github.com/osmosis-labs/cosmos-sdk/pull/593) Async pruning IAVL v1
+
+### Osmosis Specific PRs (unknown upstream status)
+
+* Performance Improvements
+    * [b9a3e8f](https://github.com/osmosis-labs/cosmos-sdk/commit/b9a3e8fa12229200b31a1e7c1805ab5a495fbd11) Lower event emission from Osmosis epoch sends
+    * [bbb9a48](https://github.com/osmosis-labs/cosmos-sdk/commit/bbb9a4898aa46cb27d2b482a74259687afe4ab16) Remove GetAccount calls in epoch
+    * [8628b48](https://github.com/osmosis-labs/cosmos-sdk/commit/8628b4869dcbf7427d4de8a5a6f8e40d9fa86e66) Types speedups
+    * [3ef7ba4](https://github.com/osmosis-labs/cosmos-sdk/commit/3ef7ba4964b74154eb9d394dbe25fd967b31fbed) Replace amino json encoder with stdlib
+    * [#601](https://github.com/osmosis-labs/cosmos-sdk/pull/601) Don't run ValidateBasic on recheck
+    * [#603](https://github.com/osmosis-labs/cosmos-sdk/pull/603) Remove IAVL per-get/delete timing info
+
+* Cliff Vesting
+    * [#271](https://github.com/osmosis-labs/cosmos-sdk/pull/271) Bring back cliff vesting CLI command
+
+## v26
+
+## [v0.50.x-v26-osmo-1](https://github.com/osmosis-labs/cosmos-sdk/releases/tag/TODO)
+
+This v0.50.x branch was created at the [bd886bb4b03fdfc52bdc1fa2f98e960316604f89](https://github.com/cosmos/cosmos-sdk/commit/bd886bb4b03fdfc52bdc1fa2f98e960316604f89) commit of the [release/v0.50.x](https://github.com/cosmos/cosmos-sdk/commits/release/v0.50.x/) branch. If you catch this fork up with the latest changes from upstream, please start at the commit after the one mentioned above, and work your way to the tip (or desired commit) of the upstream branch. Then, update this message with the new commit hash. Also, when you add a new PRs to this branch on Osmosis and it is not yet upstreamed, make sure you add it both directly below AND in the respective release section of this file.
+
+### Osmosis Specific PRs (should upstream)
+
+* Instant Undelegate
+    * [5046a6d](https://github.com/osmosis-labs/cosmos-sdk/commit/5046a6d19a5e1127ef106b0318740cd1bccb429e) InstantUndelegate + basic test
+
+* Supply Offsets
+    * [#119](https://github.com/osmosis-labs/cosmos-sdk/pull/119) Add SupplyOffsets to bank module
+    * [#295](https://github.com/osmosis-labs/cosmos-sdk/pull/295) Negative supplyWithOffset returns 0
+
+* Clawback Vesting Account
+    * [#171](https://github.com/osmosis-labs/cosmos-sdk/pull/171) Add proto for clawback vesting Account
+    * [#178](https://github.com/osmosis-labs/cosmos-sdk/pull/178) Add clawback vesting account
+    * [5b03258](https://github.com/osmosis-labs/cosmos-sdk/commit/5b032581d579eac710ce0acb62edd84fe9679c18) Add more clawback vesting tests
+
+* Track Before Send and Block Before Send
+    * [#278](https://github.com/osmosis-labs/cosmos-sdk/pull/278) Add a BeforeSend hook to the bank module
+    * [#421](https://github.com/osmosis-labs/cosmos-sdk/pull/421) Add TrackBeforeSend, BlockBeforeSend hooks. Deprecate BeforeSend hook
+
+### Osmosis Specific PRs (should not upstream)
+
 * Slashing
     * [0609929](https://github.com/osmosis-labs/cosmos-sdk/commit/0609929d2ddfd845aebfe53622176660f8392fcb) Osmosis specific key migration slashing changes, due to implementing it early in v0.47.x