fix: update changelog with description of microblock mining bugfix

Author: jcnelson

CHANGELOG.md

@@ -34,6 +34,8 @@ This release's chainstate directory is compatible with chainstate directories fr
 - Fix trait rpc lookups for implicitly implemented traits (#2602).
 - Fix `v2/pox` endpoint, broken on Mocknet (#2634).
 - Align cost limits on mocknet, testnet and mainnet (#2660). 
+- Log peer addresses in the HTTP server (#2667)
+- Mine microblocks if there are no recent unprocessed Stacks blocks
 
 ## [2.0.11.0.0]
 
@@ -69,7 +71,6 @@ compatible with prior chainstate directories.
 
 - Fixed faulty logic in the mempool that was still treating the transaction fee
   as a fee rate, which prevented replace-by-fee from working as expected.
-- Log peer addresses in the HTTP server
 
 ## [2.0.10.0.1]