diff --git a/acme.sh b/acme.sh
index 106eb0f6..ab109102 100755
--- a/acme.sh
+++ b/acme.sh
@@ -1,6 +1,6 @@
 #!/usr/bin/env sh
 
-VER=3.1.1
+VER=3.1.2
 
 PROJECT_NAME="acme.sh"
 
diff --git a/deploy/vault.sh b/deploy/vault.sh
index 03a0de83..89994f4b 100644
--- a/deploy/vault.sh
+++ b/deploy/vault.sh
@@ -80,10 +80,15 @@ vault_deploy() {
   if [ -n "$VAULT_RENEW_TOKEN" ]; then
     URL="$VAULT_ADDR/v1/auth/token/renew-self"
     _info "Renew the Vault token to default TTL"
-    if ! _post "" "$URL" >/dev/null; then
+    _response=$(_post "" "$URL")
+    if [ "$?" != "0" ]; then
       _err "Failed to renew the Vault token"
       return 1
     fi
+    if echo "$_response" | grep -q '"errors":\['; then
+      _err "Failed to renew the Vault token: $_response"
+      return 1
+    fi
   fi
 
   URL="$VAULT_ADDR/v1/$VAULT_PREFIX/$_cdomain"
@@ -91,29 +96,85 @@ vault_deploy() {
   if [ -n "$VAULT_FABIO_MODE" ]; then
     _info "Writing certificate and key to $URL in Fabio mode"
     if [ -n "$VAULT_KV_V2" ]; then
-      _post "{ \"data\": {\"cert\": \"$_cfullchain\", \"key\": \"$_ckey\"} }" "$URL" >/dev/null || return 1
+      _response=$(_post "{ \"data\": {\"cert\": \"$_cfullchain\", \"key\": \"$_ckey\"} }" "$URL")
+      if [ "$?" != "0" ]; then return 1; fi
+      if echo "$_response" | grep -q '"errors":\['; then
+        _err "Vault error: $_response"
+        return 1
+      fi
     else
-      _post "{\"cert\": \"$_cfullchain\", \"key\": \"$_ckey\"}" "$URL" >/dev/null || return 1
+      _response=$(_post "{\"cert\": \"$_cfullchain\", \"key\": \"$_ckey\"}" "$URL")
+      if [ "$?" != "0" ]; then return 1; fi
+      if echo "$_response" | grep -q '"errors":\['; then
+        _err "Vault error: $_response"
+        return 1
+      fi
     fi
   else
     if [ -n "$VAULT_KV_V2" ]; then
       _info "Writing certificate to $URL/cert.pem"
-      _post "{\"data\": {\"value\": \"$_ccert\"}}" "$URL/cert.pem" >/dev/null || return 1
+      _response=$(_post "{\"data\": {\"value\": \"$_ccert\"}}" "$URL/cert.pem")
+      if [ "$?" != "0" ]; then return 1; fi
+      if echo "$_response" | grep -q '"errors":\['; then
+        _err "Vault error writing cert.pem: $_response"
+        return 1
+      fi
+
       _info "Writing key to $URL/cert.key"
-      _post "{\"data\": {\"value\": \"$_ckey\"}}" "$URL/cert.key" >/dev/null || return 1
+      _response=$(_post "{\"data\": {\"value\": \"$_ckey\"}}" "$URL/cert.key")
+      if [ "$?" != "0" ]; then return 1; fi
+      if echo "$_response" | grep -q '"errors":\['; then
+        _err "Vault error writing cert.key: $_response"
+        return 1
+      fi
+
       _info "Writing CA certificate to $URL/ca.pem"
-      _post "{\"data\": {\"value\": \"$_cca\"}}" "$URL/ca.pem" >/dev/null || return 1
+      _response=$(_post "{\"data\": {\"value\": \"$_cca\"}}" "$URL/ca.pem")
+      if [ "$?" != "0" ]; then return 1; fi
+      if echo "$_response" | grep -q '"errors":\['; then
+        _err "Vault error writing ca.pem: $_response"
+        return 1
+      fi
+
       _info "Writing full-chain certificate to $URL/fullchain.pem"
-      _post "{\"data\": {\"value\": \"$_cfullchain\"}}" "$URL/fullchain.pem" >/dev/null || return 1
+      _response=$(_post "{\"data\": {\"value\": \"$_cfullchain\"}}" "$URL/fullchain.pem")
+      if [ "$?" != "0" ]; then return 1; fi
+      if echo "$_response" | grep -q '"errors":\['; then
+        _err "Vault error writing fullchain.pem: $_response"
+        return 1
+      fi
     else
       _info "Writing certificate to $URL/cert.pem"
-      _post "{\"value\": \"$_ccert\"}" "$URL/cert.pem" >/dev/null || return 1
+      _response=$(_post "{\"value\": \"$_ccert\"}" "$URL/cert.pem")
+      if [ "$?" != "0" ]; then return 1; fi
+      if echo "$_response" | grep -q '"errors":\['; then
+        _err "Vault error writing cert.pem: $_response"
+        return 1
+      fi
+
       _info "Writing key to $URL/cert.key"
-      _post "{\"value\": \"$_ckey\"}" "$URL/cert.key" >/dev/null || return 1
+      _response=$(_post "{\"value\": \"$_ckey\"}" "$URL/cert.key")
+      if [ "$?" != "0" ]; then return 1; fi
+      if echo "$_response" | grep -q '"errors":\['; then
+        _err "Vault error writing cert.key: $_response"
+        return 1
+      fi
+
       _info "Writing CA certificate to $URL/ca.pem"
-      _post "{\"value\": \"$_cca\"}" "$URL/ca.pem" >/dev/null || return 1
+      _response=$(_post "{\"value\": \"$_cca\"}" "$URL/ca.pem")
+      if [ "$?" != "0" ]; then return 1; fi
+      if echo "$_response" | grep -q '"errors":\['; then
+        _err "Vault error writing ca.pem: $_response"
+        return 1
+      fi
+
       _info "Writing full-chain certificate to $URL/fullchain.pem"
-      _post "{\"value\": \"$_cfullchain\"}" "$URL/fullchain.pem" >/dev/null || return 1
+      _response=$(_post "{\"value\": \"$_cfullchain\"}" "$URL/fullchain.pem")
+      if [ "$?" != "0" ]; then return 1; fi
+      if echo "$_response" | grep -q '"errors":\['; then
+        _err "Vault error writing fullchain.pem: $_response"
+        return 1
+      fi
     fi
 
     # To make it compatible with the wrong ca path `chain.pem` which was used in former versions
@@ -121,11 +182,20 @@ vault_deploy() {
       _err "The CA certificate has moved from chain.pem to ca.pem, if you don't depend on chain.pem anymore, you can delete it to avoid this warning"
       _info "Updating CA certificate to $URL/chain.pem for backward compatibility"
       if [ -n "$VAULT_KV_V2" ]; then
-        _post "{\"data\": {\"value\": \"$_cca\"}}" "$URL/chain.pem" >/dev/null || return 1
+        _response=$(_post "{\"data\": {\"value\": \"$_cca\"}}" "$URL/chain.pem")
+        if [ "$?" != "0" ]; then return 1; fi
+        if echo "$_response" | grep -q '"errors":\['; then
+          _err "Vault error writing chain.pem: $_response"
+          return 1
+        fi
       else
-        _post "{\"value\": \"$_cca\"}" "$URL/chain.pem" >/dev/null || return 1
+        _response=$(_post "{\"value\": \"$_cca\"}" "$URL/chain.pem")
+        if [ "$?" != "0" ]; then return 1; fi
+        if echo "$_response" | grep -q '"errors":\['; then
+          _err "Vault error writing chain.pem: $_response"
+          return 1
+        fi
       fi
     fi
   fi
-
 }
diff --git a/dnsapi/dns_azure.sh b/dnsapi/dns_azure.sh
index 03feaf63..f9d84706 100644
--- a/dnsapi/dns_azure.sh
+++ b/dnsapi/dns_azure.sh
@@ -340,8 +340,17 @@ _azure_getaccess_token() {
 
   if [ "$managedIdentity" = true ]; then
     # https://learn.microsoft.com/en-us/entra/identity/managed-identities-azure-resources/how-to-use-vm-token#get-a-token-using-http
-    export _H1="Metadata: true"
-    response="$(_get http://169.254.169.254/metadata/identity/oauth2/token\?api-version=2018-02-01\&resource=https://management.azure.com/)"
+    if [ -n "$IDENTITY_ENDPOINT" ]; then
+      # Some Azure environments may set IDENTITY_ENDPOINT (formerly MSI_ENDPOINT) to have an alternative metadata endpoint
+      url="$IDENTITY_ENDPOINT?api-version=2019-08-01&resource=https://management.azure.com/"
+      headers="X-IDENTITY-HEADER: $IDENTITY_HEADER"
+    else
+      url="http://169.254.169.254/metadata/identity/oauth2/token?api-version=2018-02-01&resource=https://management.azure.com/"
+      headers="Metadata: true"
+    fi
+
+    export _H1="$headers"
+    response="$(_get "$url")"
     response="$(echo "$response" | _normalizeJson)"
     accesstoken=$(echo "$response" | _egrep_o "\"access_token\":\"[^\"]*\"" | _head_n 1 | cut -d : -f 2 | tr -d \")
     expires_on=$(echo "$response" | _egrep_o "\"expires_on\":\"[^\"]*\"" | _head_n 1 | cut -d : -f 2 | tr -d \")
diff --git a/dnsapi/dns_edgecenter.sh b/dnsapi/dns_edgecenter.sh
new file mode 100644
index 00000000..cdd150df
--- /dev/null
+++ b/dnsapi/dns_edgecenter.sh
@@ -0,0 +1,163 @@
+#!/usr/bin/env sh
+# shellcheck disable=SC2034
+
+# EdgeCenter DNS API integration for acme.sh
+# Author: Konstantin Ruchev <konstantin.ruchev@edgecenter.ru>
+dns_edgecenter_info='edgecenter DNS API
+Site: https://edgecenter.ru
+Docs: github.com/acmesh-official/acme.sh/wiki/dnsapi#dns_edgecenter
+Options:
+ EDGECENTER_API_KEY auth APIKey'
+
+EDGECENTER_API="https://api.edgecenter.ru"
+DOMAIN_TYPE=
+DOMAIN_MASTER=
+
+########  Public functions #####################
+
+#Usage: dns_edgecenter_add   _acme-challenge.www.domain.com   "TXT_RECORD_VALUE"
+dns_edgecenter_add() {
+  fulldomain="$1"
+  txtvalue="$2"
+
+  _info "Using EdgeCenter DNS API"
+
+  if ! _dns_edgecenter_init_check; then
+    return 1
+  fi
+
+  _debug "Detecting root zone for $fulldomain"
+  if ! _get_root "$fulldomain"; then
+    return 1
+  fi
+
+  subdomain="${fulldomain%."$_zone"}"
+  subdomain=${subdomain%.}
+
+  _debug "Zone: $_zone"
+  _debug "Subdomain: $subdomain"
+  _debug "TXT value: $txtvalue"
+
+  payload='{"resource_records": [ { "content": ["'"$txtvalue"'"] } ], "ttl": 60 }'
+  _dns_edgecenter_http_api_call "post" "dns/v2/zones/$_zone/$subdomain.$_zone/txt" "$payload"
+
+  if _contains "$response" '"error":"rrset is already exists"'; then
+    _debug "RRSet exists, merging values"
+    _dns_edgecenter_http_api_call "get" "dns/v2/zones/$_zone/$subdomain.$_zone/txt"
+    current="$response"
+    newlist=""
+    for v in $(echo "$current" | sed -n 's/.*"content":\["\([^"]*\)"\].*/\1/p'); do
+      newlist="$newlist {\"content\":[\"$v\"]},"
+    done
+    newlist="$newlist{\"content\":[\"$txtvalue\"]}"
+    putdata="{\"resource_records\":[${newlist}]}
+"
+    _dns_edgecenter_http_api_call "put" "dns/v2/zones/$_zone/$subdomain.$_zone/txt" "$putdata"
+    _info "Updated existing RRSet with new TXT value."
+    return 0
+  fi
+
+  if _contains "$response" '"exception":'; then
+    _err "Record cannot be added."
+    return 1
+  fi
+
+  _info "TXT record added successfully."
+  return 0
+}
+
+#Usage: dns_edgecenter_rm   _acme-challenge.www.domain.com   "TXT_RECORD_VALUE"
+dns_edgecenter_rm() {
+  fulldomain="$1"
+  txtvalue="$2"
+
+  _info "Removing TXT record for $fulldomain"
+
+  if ! _dns_edgecenter_init_check; then
+    return 1
+  fi
+
+  if ! _get_root "$fulldomain"; then
+    return 1
+  fi
+
+  subdomain="${fulldomain%."$_zone"}"
+  subdomain=${subdomain%.}
+
+  _dns_edgecenter_http_api_call "delete" "dns/v2/zones/$_zone/$subdomain.$_zone/txt"
+
+  if [ -z "$response" ]; then
+    _info "TXT record deleted successfully."
+  else
+    _info "TXT record may not have been deleted: $response"
+  fi
+  return 0
+}
+
+####################  Private functions below ##################################
+
+_dns_edgecenter_init_check() {
+  EDGECENTER_API_KEY="${EDGECENTER_API_KEY:-$(_readaccountconf_mutable EDGECENTER_API_KEY)}"
+  if [ -z "$EDGECENTER_API_KEY" ]; then
+    _err "EDGECENTER_API_KEY was not exported."
+    return 1
+  fi
+
+  _saveaccountconf_mutable EDGECENTER_API_KEY "$EDGECENTER_API_KEY"
+  export _H1="Authorization: APIKey $EDGECENTER_API_KEY"
+
+  _dns_edgecenter_http_api_call "get" "dns/v2/clients/me/features"
+  if ! _contains "$response" '"id":'; then
+    _err "Invalid API key."
+    return 1
+  fi
+  return 0
+}
+
+_get_root() {
+  domain="$1"
+  i=1
+  while true; do
+    h=$(printf "%s" "$domain" | cut -d . -f "$i"-)
+    if [ -z "$h" ]; then
+      return 1
+    fi
+    _dns_edgecenter_http_api_call "get" "dns/v2/zones/$h"
+    if ! _contains "$response" 'zone is not found'; then
+      _zone="$h"
+      return 0
+    fi
+    i=$((i + 1))
+  done
+  return 1
+}
+
+_dns_edgecenter_http_api_call() {
+  mtd="$1"
+  endpoint="$2"
+  data="$3"
+
+  export _H1="Authorization: APIKey $EDGECENTER_API_KEY"
+
+  case "$mtd" in
+  get)
+    response="$(_get "$EDGECENTER_API/$endpoint")"
+    ;;
+  post)
+    response="$(_post "$data" "$EDGECENTER_API/$endpoint")"
+    ;;
+  delete)
+    response="$(_post "" "$EDGECENTER_API/$endpoint" "" "DELETE")"
+    ;;
+  put)
+    response="$(_post "$data" "$EDGECENTER_API/$endpoint" "" "PUT")"
+    ;;
+  *)
+    _err "Unknown HTTP method $mtd"
+    return 1
+    ;;
+  esac
+
+  _debug "HTTP $mtd response: $response"
+  return 0
+}