diff --git a/CHANGELOG.md b/CHANGELOG.md
index c2ebdd8ff3..0ee2d1966e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,34 @@
+## [0.13.4] - 2023-12-11
+
+### Bug Fixes
+
+- Ordered map race condition (#708)
+
+### Performance
+
+- Increase web socket channels capacity (#709)
+
+## [0.13.3] - 2023-10-16
+
+### Bug Fixes
+
+- Issue with GMP not properly being linked on mac (#698)
+- Always propose with current app version (#697)
+
+### Miscellaneous Tasks
+
+- Update changelog and version to 0.13.3
+
+## [0.13.2] - 2023-10-09
+
+### Bug Fixes
+
+- Log-file-path setting does not work (#691)
+
+### Miscellaneous Tasks
+
+- Update changelog and version to 0.13.2
+
 ## [0.13.1] - 2023-09-14
 
 ### Bug Fixes
@@ -5,6 +36,10 @@
 - Send evidence only once (#683)
 - Panic verifying evidence due to missing pubkey (#684)
 
+### Miscellaneous Tasks
+
+- Update changelog and version to 0.13.1
+
 ## [0.13.0] - 2023-09-13
 
 ### Bug Fixes
diff --git a/Makefile b/Makefile
index d004a8c328..67c61379ae 100644
--- a/Makefile
+++ b/Makefile
@@ -34,6 +34,14 @@ CGO_CXXFLAGS ?= -I$(BLS_DIR)/build/depends/relic/include \
 -I$(BLS_DIR)/src/depends/relic/include \
 -I$(BLS_DIR)/src/include
 
+OS := $(shell uname)
+
+ifeq ($(OS),Darwin)  # macOS
+    GMP_PREFIX := $(shell brew --prefix gmp 2>/dev/null)
+    CGO_LDFLAGS += -L$(GMP_PREFIX)/lib
+    CGO_CXXFLAGS += -I$(GMP_PREFIX)/include
+endif
+
 GO := CGO_ENABLED=$(CGO_ENABLED) CGO_CXXFLAGS="$(CGO_CXXFLAGS)" CGO_LDFLAGS="$(CGO_LDFLAGS)" go
 
 # handle ARM builds
diff --git a/internal/rpc/core/events.go b/internal/rpc/core/events.go
index 023d45a2d7..da8e6088ee 100644
--- a/internal/rpc/core/events.go
+++ b/internal/rpc/core/events.go
@@ -17,7 +17,7 @@ import (
 
 const (
 	// Buffer on the Tendermint (server) side to allow some slowness in clients.
-	subBufferSize = 100
+	subBufferSize = 500
 
 	// maxQueryLength is the maximum length of a query string that will be
 	// accepted. This is just a safety check to avoid outlandish queries.
diff --git a/internal/state/execution.go b/internal/state/execution.go
index 359d9aedc6..e1d7bd220c 100644
--- a/internal/state/execution.go
+++ b/internal/state/execution.go
@@ -204,11 +204,6 @@ func (blockExec *BlockExecutor) CreateProposalBlock(
 		return nil, CurrentRoundState{}, fmt.Errorf("create proposal block: %w", err)
 	}
 
-	// Pass proposed app version only if it's higher than current network app version
-	if proposedAppVersion <= state.Version.Consensus.App {
-		proposedAppVersion = 0
-	}
-
 	txs := blockExec.mempool.ReapMaxBytesMaxGas(maxDataBytes, maxGas)
 	block := state.MakeBlock(height, txs, commit, evidence, proposerProTxHash, proposedAppVersion)
 
diff --git a/internal/state/validation.go b/internal/state/validation.go
index ceb0884f6b..e197b02d59 100644
--- a/internal/state/validation.go
+++ b/internal/state/validation.go
@@ -51,14 +51,6 @@ func validateBlock(state State, block *types.Block) error {
 		)
 	}
 
-	// Validate proposed app version
-	if block.Header.ProposedAppVersion > 0 && block.Header.ProposedAppVersion <= state.Version.Consensus.App {
-		return fmt.Errorf("wrong block.Header.ProposedAppVersion must be higher than %v, is %d",
-			state.Version.Consensus.App,
-			block.Header.ProposedAppVersion,
-		)
-	}
-
 	// Validate prev block info.
 	if !block.LastBlockID.Equals(state.LastBlockID) {
 		return fmt.Errorf("wrong Block.Header.LastBlockID.  Expected %v, got %v",
diff --git a/libs/ds/ordered_map.go b/libs/ds/ordered_map.go
index 99e471c066..e7be78ebf0 100644
--- a/libs/ds/ordered_map.go
+++ b/libs/ds/ordered_map.go
@@ -1,11 +1,14 @@
 package ds
 
+import "sync"
+
 // OrderedMap is a map with a deterministic iteration order
-// this datastructure is not thread-safe
+// this datastructure is thread-safe
 type OrderedMap[T comparable, V any] struct {
 	len    int
 	keys   map[T]int
 	values []V
+	mtx    sync.RWMutex
 }
 
 // NewOrderedMap returns a new OrderedMap
@@ -17,6 +20,9 @@ func NewOrderedMap[T comparable, V any]() *OrderedMap[T, V] {
 
 // Put adds a key-value pair to the map
 func (m *OrderedMap[T, V]) Put(key T, val V) {
+	m.mtx.Lock()
+	defer m.mtx.Unlock()
+
 	i, ok := m.keys[key]
 	if ok {
 		m.values[i] = val
@@ -33,6 +39,9 @@ func (m *OrderedMap[T, V]) Put(key T, val V) {
 
 // Get returns the value for a given key
 func (m *OrderedMap[T, V]) Get(key T) (V, bool) {
+	m.mtx.RLock()
+	defer m.mtx.RUnlock()
+
 	i, ok := m.keys[key]
 	if !ok {
 		var v V
@@ -43,12 +52,18 @@ func (m *OrderedMap[T, V]) Get(key T) (V, bool) {
 
 // Has returns true if the map contains the given key
 func (m *OrderedMap[T, V]) Has(key T) bool {
+	m.mtx.RLock()
+	defer m.mtx.RUnlock()
+
 	_, ok := m.keys[key]
 	return ok
 }
 
 // Delete removes a key-value pair from the map
 func (m *OrderedMap[T, V]) Delete(key T) {
+	m.mtx.Lock()
+	defer m.mtx.Unlock()
+
 	i, ok := m.keys[key]
 	if !ok {
 		return
@@ -63,11 +78,17 @@ func (m *OrderedMap[T, V]) Delete(key T) {
 
 // Values returns all values in the map
 func (m *OrderedMap[T, V]) Values() []V {
+	m.mtx.RLock()
+	defer m.mtx.RUnlock()
+
 	return append([]V{}, m.values[0:m.len]...)
 }
 
 // Keys returns all keys in the map
 func (m *OrderedMap[T, V]) Keys() []T {
+	m.mtx.RLock()
+	defer m.mtx.RUnlock()
+
 	keys := make([]T, len(m.keys))
 	for k, v := range m.keys {
 		keys[v] = k
@@ -77,5 +98,8 @@ func (m *OrderedMap[T, V]) Keys() []T {
 
 // Len returns a number of the map
 func (m *OrderedMap[T, V]) Len() int {
+	m.mtx.RLock()
+	defer m.mtx.RUnlock()
+
 	return m.len
 }
diff --git a/libs/ds/ordered_map_test.go b/libs/ds/ordered_map_test.go
index 15a96f0252..3ed15647a5 100644
--- a/libs/ds/ordered_map_test.go
+++ b/libs/ds/ordered_map_test.go
@@ -1,6 +1,8 @@
 package ds
 
 import (
+	"strconv"
+	"sync"
 	"testing"
 
 	"github.com/stretchr/testify/require"
@@ -40,3 +42,20 @@ func TestOrderedMap(t *testing.T) {
 	// delete unknown key
 	om.Delete("c")
 }
+
+// / Run TestOrderedMap in parallel
+func TestOrderedMapMultithread(t *testing.T) {
+	threads := 100
+
+	wg := sync.WaitGroup{}
+	wg.Add(threads)
+
+	for i := 0; i < threads; i++ {
+		go func(id int) {
+			t.Run(strconv.FormatInt(int64(id), 10), TestOrderedMap)
+			wg.Done()
+		}(i)
+	}
+
+	wg.Wait()
+}
diff --git a/rpc/jsonrpc/server/ws_handler.go b/rpc/jsonrpc/server/ws_handler.go
index bb897680e4..0f9ed2daba 100644
--- a/rpc/jsonrpc/server/ws_handler.go
+++ b/rpc/jsonrpc/server/ws_handler.go
@@ -17,7 +17,7 @@ import (
 // WebSocket handler
 
 const (
-	defaultWSWriteChanCapacity = 100
+	defaultWSWriteChanCapacity = 500
 	defaultWSWriteWait         = 10 * time.Second
 	defaultWSReadWait          = 30 * time.Second
 	defaultWSPingPeriod        = (defaultWSReadWait * 9) / 10
diff --git a/version/version.go b/version/version.go
index 70dec25555..58b28384fb 100644
--- a/version/version.go
+++ b/version/version.go
@@ -9,7 +9,7 @@ var (
 const (
 	// TMVersionDefault is the used as the fallback version for Tenderdash
 	// when not using git describe. It is formatted with semantic versioning.
-	TMVersionDefault = "0.13.1"
+	TMVersionDefault = "0.13.4"
 	// ABCISemVer is the semantic version of the ABCI library
 	ABCISemVer = "0.23.0"