release: prepare v0.34.20-rc0 (#8888)

CHANGELOG.md

@@ -2,6 +2,23 @@
 
 Friendly reminder, we have a [bug bounty program](https://hackerone.com/cosmos).
 
+## v0.34.20-rc0
+
+This RC introduces the prioritized mempool. 
+
+NOTE: There's a known memory leak with the prioritized mempool that the team are currently working on resolving. We will cut v0.34.20 when this has been resolved. This release candidate is to provide the SDK with the new APIs. Read more about the issue [here](https://github.com/tendermint/tendermint/issues/8775)
+
+### FEATURES
+
+- [cli] [\#8674] Add command to force compact goleveldb databases (@cmwaters)
+- [mempool] [\#8695] Port back the priority mempool. (@alexanderbez, @jmalicevic, @cmwaters)
+
+### IMPROVEMENTS
+
+### BUG FIXES
+
+- [blocksync] [\#8496](https://github.com/tendermint/tendermint/pull/8496) validate block against state before persisting it to disk (@cmwaters)
+
 ## v0.34.19
 
 ### BUG FIXES

CHANGELOG_PENDING.md

@@ -20,11 +20,7 @@ Friendly reminder, we have a [bug bounty program](https://hackerone.com/tendermi
 
 ### FEATURES
 
-- [cli] [\#8674] Add command to force compact goleveldb databases (@cmwaters)
-- [mempool] [\#8695] Introduction a priority mempool. (@alexanderbez, @jmalicevic, @cmwaters)
-
 ### IMPROVEMENTS
 
 ### BUG FIXES
 
-- [blocksync] [\#8496](https://github.com/tendermint/tendermint/pull/8496) validate block against state before persisting it to disk (@cmwaters)

config/config.go

@@ -681,6 +681,12 @@ func DefaultFuzzConnConfig() *FuzzConnConfig {
 
 // MempoolConfig defines the configuration options for the Tendermint mempool
 type MempoolConfig struct {
+	// Mempool version to use:
+	//  1) "v0" - (default) FIFO mempool.
+	//  2) "v1" - prioritized mempool.
+	// WARNING: There's a known memory leak with the prioritized mempool
+	// that the team are working on. Read more here:
+	// https://github.com/tendermint/tendermint/issues/8775
 	Version   string `mapstructure:"version"`
 	RootDir   string `mapstructure:"home"`
 	Recheck   bool   `mapstructure:"recheck"`

config/toml.go

@@ -342,6 +342,14 @@ dial_timeout = "{{ .P2P.DialTimeout }}"
 #######################################################
 [mempool]
 
+# Mempool version to use:
+#   1) "v0" - (default) FIFO mempool.
+#   2) "v1" - prioritized mempool.
+# WARNING: There's a known memory leak with the prioritized mempool
+# that the team are working on. Read more here: 
+# https://github.com/tendermint/tendermint/issues/8775
+version = "{{ .Mempool.Version }}"
+
 recheck = {{ .Mempool.Recheck }}
 broadcast = {{ .Mempool.Broadcast }}
 wal_dir = "{{ js .Mempool.WalPath }}"

version/version.go

@@ -7,7 +7,7 @@ var (
 const (
 	// TMVersionDefault is the used as the fallback version of Tendermint Core
 	// when not using git describe. It is formatted with semantic versioning.
-	TMVersionDefault = "0.34.19"
+	TMVersionDefault = "0.34.20"
 	// ABCISemVer is the semantic version of the ABCI library
 	ABCISemVer = "0.17.0"