enable syncv2 on mainnet (#6795)

Author: poszu

CHANGELOG.md

@@ -2,6 +2,21 @@
 
 See [RELEASE](./RELEASE.md) for workflow instructions.
 
+## v1.8.1
+
+### Highlights
+
+This release will enable syncv2 fully to sync ATXs for all nodes. This should greatly reduce the time it takes to sync
+a node from genesis and the amount of data that is needed to be exchanged with the network to keep a node in sync. The
+improvements are enabled automatically after upgrading to this version and no user action is needed.
+
+### Improvements
+
+* [6792](https://github.com/spacemeshos/go-spacemesh/pull/6792) Fixed race condition in `FPTree` implementation (sync v2).
+
+* [6794](https://github.com/spacemeshos/go-spacemesh/pull/6794) Increased database connection idle timeout,
+  which should reduce occurances of `SQLITE_BUSY` errors.
+
 ## v1.8.0
 
 ### Highlights
@@ -20,6 +35,9 @@ in terms of data size and more easily extendable in the future.
 * [#6779](https://github.com/spacemeshos/go-spacemesh/pull/6779) Fixed the malfeasance publisher not emitting events.
   This caused the node to miss malfeasance proofs when streaming via the GRPC API.
 
+* [#6784](https://github.com/spacemeshos/go-spacemesh/pull/6784) Fixed possible corruptions of DB transactions
+  when a context is cancelled mid transaction (sync v2).
+
 ## v1.7.17
 
 ### Improvements

config/mainnet.go

@@ -230,7 +230,7 @@ func MainnetConfig() Config {
 			MalSync:                  malsync.DefaultConfig(),
 			ReconcSync: syncer.ReconcSyncConfig{
 				Enable:            true,
-				EnableActiveSync:  false,
+				EnableActiveSync:  true,
 				OldAtxSyncCfg:     oldAtxSyncCfg,
 				NewAtxSyncCfg:     newAtxSyncCfg,
 				ParallelLoadLimit: 10,