docs: Update CHANGELOG.md for v10 (cosmos#2500)

* Update CHANGELOG.md

* Update CHANGELOG.md

CHANGELOG.md

@@ -41,12 +41,18 @@ Ref: https://keepachangelog.com/en/1.0.0/
 * (gaia) [#2442](https://github.com/cosmos/gaia/pull/2442) Bump [Interchain-Security](https://github.com/cosmos/interchain-security) to [v1.1.1](https://github.com/cosmos/interchain-security/tree/v1.1.1).
 
 ### State Machine Breaking
-* (gaia) Bump Golang prerequisite from 1.18 to 1.20 see (https://go.dev/blog/go1.20) for details.
+
 * (feat!) [#2424](https://github.com/cosmos/gaia/pull/2424) Add `bypass-min-fee-msg-types` and `maxTotalBypassMinFeeMsgGagUsage` to globalfee params. Note that this change is both state breaking and API breaking. The previous API endpoint was "/gaia/globalfee/v1beta1/minimum_gas_prices," and the new API endpoint is "/gaia/globalfee/v1beta1/params."
 * (feat!) [#2352](https://github.com/cosmos/gaia/pull/2352) Create the upgrade handler and params migration for the new Gloabal Fee module parameters introduced in [#2424](https://github.com/cosmos/gaia/pull/2424).
 Update the CI upgrade tests from v9 to the v10 and check that the parameters are successfully migrated.
 * (feat!) [#2447](https://github.com/cosmos/gaia/pull/2447) Update Global Fee's AnteHandler to check tx fees against the network min gas prices in DeliverTx mode.
 
+## [v10.0.0-rc0] 2023-05-17
+
+* (feat) v10 upgrade boilerplate [#2502](https://github.com/cosmos/gaia/pull/2502). Note this PR is merged directly into the v10 release branch, not main.
+* (deps) update several things at once (sdk, cometbft, ibc-go, btcd), see [#2498](https://github.com/cosmos/gaia/pull/2498) for details.
+* (gaia) Bump Golang prerequisite from 1.18 to 1.20 see (https://go.dev/blog/go1.20) for details.
+
 ## [v9.0.3] - 2023-04-19
 * (deps) [#2399](https://github.com/cosmos/gaia/pull/2399) Bump [cosmos-sdk](https://github.com/cosmos/cosmos-sdk) to [v0.45.15-ics](https://github.com/cosmos/cosmos
 sdk/releases/tag/v0.45.15-ics) and migrate to [CometBFT](https://github.com/cometbft/cometbft).