Merge pull request #7562 from smartcontractkit/chore/release/1.9.0-do…

…cs-cleanup

Move CHANGELOG entries released under v1.8.1 to its own section

docs/CHANGELOG.md

@@ -13,16 +13,21 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Added `length` and `lessthan` tasks (pipeline).
 - Added `gasUnlimited` parameter to `ethcall` task. 
-- `GAS_ESTIMATOR_MODE` `Arbitrum` to support Nitro's multi-dimensional gas model, with dynamic gas pricing and limits.
-This new, default estimator for Arbitrum networks uses the suggested gas price (up to `ETH_MAX_GAS_PRICE_WEI`, with `1000 gwei` default) as well 
-as an estimated gas limit (up to `ETH_GAS_LIMIT_MAX`, with `1,000,000,000` default).  
-- `ETH_GAS_LIMIT_MAX` to put a maximum on the gas limit returned by the `Arbitrum` estimator.
 - `/keys` page in Operator UI now exposes several admin commands, namely:
   - "abandon" to abandon all current txes
   - enable/disable a key for a given chain
   - manually set the nonce for a key
   See [this PR](https://github.com/smartcontractkit/chainlink/pull/7406) for a screenshot example.
 
+## 1.8.1 - 2022-09-29
+
+### Added
+
+-  New `GAS_ESTIMATOR_MODE` for Arbitrum to support Nitro's multi-dimensional gas model, with dynamic gas pricing and limits.
+   -  NOTE: It is recommended to remove `GAS_ESTIMATOR_MODE` as an env var if you have it set in order to use the new default.
+   -  This new, default estimator for Arbitrum networks uses the suggested gas price (up to `ETH_MAX_GAS_PRICE_WEI`, with `1000 gwei` default) as well as an estimated gas limit (up to `ETH_GAS_LIMIT_MAX`, with `1,000,000,000` default).
+- `ETH_GAS_LIMIT_MAX` to put a maximum on the gas limit returned by the `Arbitrum` estimator.
+
 ## 1.8.0 - 2022-09-01
 
 ### Added