diff --git a/splitio/commitversion.go b/splitio/commitversion.go
index c10965dc..dfb3f8ed 100644
--- a/splitio/commitversion.go
+++ b/splitio/commitversion.go
@@ -5,4 +5,4 @@ This file is created automatically, please do not edit
 */
 
 // CommitVersion is the version of the last commit previous to release
-const CommitVersion = "59410e1"
+const CommitVersion = "eb1a57b"
diff --git a/splitio/producer/conf/sections.go b/splitio/producer/conf/sections.go
index 0436ae5d..139225d5 100644
--- a/splitio/producer/conf/sections.go
+++ b/splitio/producer/conf/sections.go
@@ -17,7 +17,7 @@ type Main struct {
 	Integrations     conf.Integrations `json:"integrations" s-nested:"true"`
 	Logging          conf.Logging      `json:"logging" s-nested:"true"`
 	Healthcheck      Healthcheck       `json:"healthcheck" s-nested:"true"`
-	SpecVersion      string
+	SpecVersion      string            `json:"specVersion" s-cli:"spec-version" s-def:"1.1" s-desc:"Spec version for flags"`
 }
 
 // BuildAdvancedConfig generates a commons-compatible advancedconfig with default + overriden parameters
diff --git a/splitio/producer/initialization.go b/splitio/producer/initialization.go
index 3cd5b5f8..9c238f5b 100644
--- a/splitio/producer/initialization.go
+++ b/splitio/producer/initialization.go
@@ -46,7 +46,6 @@ const (
 // Start initialize the producer mode
 func Start(logger logging.LoggerInterface, cfg *conf.Main) error {
 	// Getting initial config data
-	cfg.SpecVersion = "1.0" // @TODO Until is implemented
 	advanced := cfg.BuildAdvancedConfig()
 	advanced.AuthSpecVersion = cfg.SpecVersion
 	advanced.FlagsSpecVersion = cfg.SpecVersion
diff --git a/splitio/producer/initialization_test.go b/splitio/producer/initialization_test.go
index d2e1221e..12554bca 100644
--- a/splitio/producer/initialization_test.go
+++ b/splitio/producer/initialization_test.go
@@ -126,7 +126,8 @@ func TestSanitizeRedisWithForcedCleanup(t *testing.T) {
 
 func TestSanitizeRedisWithRedisEqualApiKey(t *testing.T) {
 	cfg := getDefaultConf()
-	cfg.Apikey = "djasghdhjasfganyr73dsah9"
+	cfg.Apikey = "983564etyrudhijfgknf9i08euh"
+	cfg.SpecVersion = "1.0"
 
 	logger := logging.NewLogger(nil)
 
@@ -139,9 +140,10 @@ func TestSanitizeRedisWithRedisEqualApiKey(t *testing.T) {
 	if err != nil {
 		t.Error("It should be nil")
 	}
+	hash := util.HashAPIKey(cfg.Apikey + cfg.SpecVersion + strings.Join(cfg.FlagSetsFilter, "::"))
 
 	redisClient.Set("SPLITIO.test1", "123", 0)
-	redisClient.Set("SPLITIO.hash", "3376912823", 0)
+	redisClient.Set("SPLITIO.hash", hash, 0)
 
 	miscStorage := predis.NewMiscStorage(redisClient, logger)
 	err = sanitizeRedis(cfg, miscStorage, logger)
@@ -155,16 +157,18 @@ func TestSanitizeRedisWithRedisEqualApiKey(t *testing.T) {
 	}
 
 	val, _ = redisClient.Get("SPLITIO.hash")
-	if val != "3376912823" {
+	if val != strconv.FormatUint(uint64(hash), 10) {
 		t.Error("Incorrect apikey hash set in redis after sanitization operation.")
 	}
 
+	redisClient.Del("SPLITIO.hash")
 	redisClient.Del("SPLITIO.test1")
 }
 
 func TestSanitizeRedisWithRedisDifferentApiKey(t *testing.T) {
 	cfg := getDefaultConf()
 	cfg.Apikey = "983564etyrudhijfgknf9i08euh"
+	cfg.SpecVersion = "1.0"
 
 	logger := logging.NewLogger(nil)
 
@@ -177,9 +181,12 @@ func TestSanitizeRedisWithRedisDifferentApiKey(t *testing.T) {
 	if err != nil {
 		t.Error("It should be nil")
 	}
+	hash := util.HashAPIKey("djasghdhjasfganyr73dsah9" + cfg.SpecVersion + strings.Join(cfg.FlagSetsFilter, "::"))
 
 	redisClient.Set("SPLITIO.test1", "123", 0)
-	redisClient.Set("SPLITIO.hash", "3376912823", 0)
+	redisClient.Set("SPLITIO.hash", "3216514561", 0)
+
+	hash = util.HashAPIKey(cfg.Apikey + cfg.SpecVersion + strings.Join(cfg.FlagSetsFilter, "::"))
 
 	miscStorage := predis.NewMiscStorage(redisClient, logger)
 	err = sanitizeRedis(cfg, miscStorage, logger)
@@ -193,20 +200,22 @@ func TestSanitizeRedisWithRedisDifferentApiKey(t *testing.T) {
 	}
 
 	val, _ = redisClient.Get("SPLITIO.hash")
-	if val != "1497926959" {
-		t.Error("Incorrect apikey hash set in redis after sanitization operation.")
+	if val != strconv.FormatUint(uint64(hash), 10) {
+		t.Error("Incorrect apikey hash set in redis after sanitization operation.", val)
 	}
 
+	redisClient.Del("SPLITIO.hash")
 	redisClient.Del("SPLITIO.test1")
 }
 
 func TestSanitizeRedisWithForcedCleanupByFlagSets(t *testing.T) {
 	cfg := getDefaultConf()
+	cfg.SpecVersion = "1.0"
 	cfg.Apikey = "983564etyrudhijfgknf9i08euh"
 	cfg.Initialization.ForceFreshStartup = true
 	cfg.FlagSetsFilter = []string{"flagset1", "flagset2"}
 
-	hash := util.HashAPIKey(cfg.Apikey + strings.Join(cfg.FlagSetsFilter, "::"))
+	hash := util.HashAPIKey(cfg.Apikey + cfg.SpecVersion + strings.Join(cfg.FlagSetsFilter, "::"))
 
 	logger := logging.NewLogger(nil)
 
diff --git a/splitio/proxy/conf/sections.go b/splitio/proxy/conf/sections.go
index 3f7d796a..7c9d13e6 100644
--- a/splitio/proxy/conf/sections.go
+++ b/splitio/proxy/conf/sections.go
@@ -20,6 +20,7 @@ type Main struct {
 	Logging               conf.Logging      `json:"logging" s-nested:"true"`
 	Healthcheck           Healthcheck       `json:"healthcheck" s-nested:"true"`
 	Observability         Observability     `json:"observability" s-nested:"true"`
+	SpecVersion           string            `json:"specVersion" s-cli:"spec-version" s-def:"1.1" s-desc:"Spec version for flags"`
 }
 
 // BuildAdvancedConfig generates a commons-compatible advancedconfig with default + overriden parameters
diff --git a/splitio/proxy/initialization.go b/splitio/proxy/initialization.go
index 80254925..9e0f8c06 100644
--- a/splitio/proxy/initialization.go
+++ b/splitio/proxy/initialization.go
@@ -72,6 +72,8 @@ func Start(logger logging.LoggerInterface, cfg *pconf.Main) error {
 	// Getting initial config data
 	advanced := cfg.BuildAdvancedConfig()
 	advanced.FlagSetsFilter = cfg.FlagSetsFilter
+	advanced.AuthSpecVersion = cfg.SpecVersion
+	advanced.FlagsSpecVersion = cfg.SpecVersion
 	metadata := util.GetMetadata(cfg.IPAddressEnabled, true)
 
 	// FlagSetsFilter