diff --git a/dnsapi/dns_selectel.sh b/dnsapi/dns_selectel.sh
index 8b52b24e..434bc483 100644
--- a/dnsapi/dns_selectel.sh
+++ b/dnsapi/dns_selectel.sh
@@ -1,14 +1,31 @@
 #!/usr/bin/env sh
 # shellcheck disable=SC2034
-dns_selectel_info='Selectel.com
-Domains: Selectel.ru
-Site: Selectel.com
-Docs: github.com/acmesh-official/acme.sh/wiki/dnsapi#dns_selectel
-Options:
- SL_Key API Key
-'
 
-SL_Api="https://api.selectel.ru/domains/v1"
+# dns_selectel_info='Selectel.com
+# Domains: Selectel.ru
+# Site: Selectel.com
+# Docs: github.com/acmesh-official/acme.sh/wiki/dnsapi#dns_selectel
+# Options:
+# Variables that must be defined before running
+#   SL_Ver can take one of the values 'v1' or 'v2', default is 'v1'
+#   SL_Ver='v1', when using version API legacy (v1)
+#   SL_Ver='v2', when using version API actual (v2)
+# when using API version v1, i.e. SL_Ver is 'v1' or not defined:
+#   SL_Key - API Key, required
+# when using API version v2:
+#   SL_Ver          - required as 'v2'
+#   SL_Login_ID     - account ID, required
+#   SL_Project_Name - name project, required
+#   SL_Login_Name   - service user name, required
+#   SL_Pswd         - service user password, required
+#   SL_Expire       - token lifetime in minutes (0-1440), default 1400 minutes
+#
+# Issues: github.com/acmesh-official/acme.sh/issues/5126
+#
+
+SL_Api="https://api.selectel.ru/domains"
+auth_uri="https://cloud.api.selcloud.ru/identity/v3/auth/tokens"
+_sl_sep='#'
 
 ########  Public functions #####################
 
@@ -17,17 +34,14 @@ dns_selectel_add() {
   fulldomain=$1
   txtvalue=$2
 
-  SL_Key="${SL_Key:-$(_readaccountconf_mutable SL_Key)}"
-
-  if [ -z "$SL_Key" ]; then
-    SL_Key=""
-    _err "You don't specify selectel.ru api key yet."
-    _err "Please create you key and try again."
+  if ! _sl_init_vars; then
     return 1
   fi
-
-  #save the api key to the account conf file.
-  _saveaccountconf_mutable SL_Key "$SL_Key"
+  _debug2 SL_Ver "$SL_Ver"
+  _debug2 SL_Expire "$SL_Expire"
+  _debug2 SL_Login_Name "$SL_Login_Name"
+  _debug2 SL_Login_ID "$SL_Login_ID"
+  _debug2 SL_Project_Name "$SL_Project_Name"
 
   _debug "First detect the root zone"
   if ! _get_root "$fulldomain"; then
@@ -39,11 +53,63 @@ dns_selectel_add() {
   _debug _domain "$_domain"
 
   _info "Adding record"
-  if _sl_rest POST "/$_domain_id/records/" "{\"type\": \"TXT\", \"ttl\": 60, \"name\": \"$fulldomain\", \"content\": \"$txtvalue\"}"; then
-    if _contains "$response" "$txtvalue" || _contains "$response" "record_already_exists"; then
+  if [ "$SL_Ver" = "v2" ]; then
+    _ext_srv1="/zones/"
+    _ext_srv2="/rrset/"
+    _text_tmp=$(echo "$txtvalue" | sed -En "s/[\"]*([^\"]*)/\1/p")
+    _text_tmp='\"'$_text_tmp'\"'
+    _data="{\"type\": \"TXT\", \"ttl\": 60, \"name\": \"${fulldomain}.\", \"records\": [{\"content\":\"$_text_tmp\"}]}"
+  elif [ "$SL_Ver" = "v1" ]; then
+    _ext_srv1="/"
+    _ext_srv2="/records/"
+    _data="{\"type\":\"TXT\",\"ttl\":60,\"name\":\"$fulldomain\",\"content\":\"$txtvalue\"}"
+  else
+    _err "Error. Unsupported version API $SL_Ver"
+    return 1
+  fi
+  _ext_uri="${_ext_srv1}$_domain_id${_ext_srv2}"
+  _debug _ext_uri "$_ext_uri"
+  _debug _data "$_data"
+
+  if _sl_rest POST "$_ext_uri" "$_data"; then
+    if _contains "$response" "$txtvalue"; then
       _info "Added, OK"
       return 0
     fi
+    if _contains "$response" "already_exists"; then
+      # record TXT with $fulldomain already exists
+      if [ "$SL_Ver" = "v2" ]; then
+        # It is necessary to add one more content to the comments
+        # read all records rrset
+        _debug "Getting txt records"
+        _sl_rest GET "${_ext_uri}"
+        # There is already a $txtvalue value, no need to add it
+        if _contains "$response" "$txtvalue"; then
+          _info "Added, OK"
+          _info "Txt record ${fulldomain} with value ${txtvalue} already exists"
+          return 0
+        fi
+        # group \1 - full record rrset; group \2 - records attribute value, exactly {"content":"\"value1\""},{"content":"\"value2\""}",...
+        _record_seg="$(echo "$response" | sed -En "s/.*(\{\"id\"[^}]*${fulldomain}[^}]*records[^}]*\[(\{[^]]*\})\][^}]*}).*/\1/p")"
+        _record_array="$(echo "$response" | sed -En "s/.*(\{\"id\"[^}]*${fulldomain}[^}]*records[^}]*\[(\{[^]]*\})\][^}]*}).*/\2/p")"
+        # record id
+        _record_id="$(echo "$_record_seg" | tr "," "\n" | tr "}" "\n" | tr -d " " | grep "\"id\"" | cut -d : -f 2 | tr -d "\"")"
+        # preparing _data
+        _tmp_str="${_record_array},{\"content\":\"${_text_tmp}\"}"
+        _data="{\"ttl\": 60, \"records\": [${_tmp_str}]}"
+        _debug2 _record_seg "$_record_seg"
+        _debug2 _record_array "$_record_array"
+        _debug2 _record_array "$_record_id"
+        _debug "New data for record" "$_data"
+        if _sl_rest PATCH "${_ext_uri}${_record_id}" "$_data"; then
+          _info "Added, OK"
+          return 0
+        fi
+      elif [ "$SL_Ver" = "v1" ]; then
+        _info "Added, OK"
+        return 0
+      fi
+    fi
   fi
   _err "Add txt record error."
   return 1
@@ -54,15 +120,15 @@ dns_selectel_rm() {
   fulldomain=$1
   txtvalue=$2
 
-  SL_Key="${SL_Key:-$(_readaccountconf_mutable SL_Key)}"
-
-  if [ -z "$SL_Key" ]; then
-    SL_Key=""
-    _err "You don't specify slectel api key yet."
-    _err "Please create you key and try again."
+  if ! _sl_init_vars "nosave"; then
     return 1
   fi
-
+  _debug2 SL_Ver "$SL_Ver"
+  _debug2 SL_Expire "$SL_Expire"
+  _debug2 SL_Login_Name "$SL_Login_Name"
+  _debug2 SL_Login_ID "$SL_Login_ID"
+  _debug2 SL_Project_Name "$SL_Project_Name"
+  #
   _debug "First detect the root zone"
   if ! _get_root "$fulldomain"; then
     _err "invalid domain"
@@ -71,91 +137,195 @@ dns_selectel_rm() {
   _debug _domain_id "$_domain_id"
   _debug _sub_domain "$_sub_domain"
   _debug _domain "$_domain"
-
+  #
+  if [ "$SL_Ver" = "v2" ]; then
+    _ext_srv1="/zones/"
+    _ext_srv2="/rrset/"
+  elif [ "$SL_Ver" = "v1" ]; then
+    _ext_srv1="/"
+    _ext_srv2="/records/"
+  else
+    _err "Error. Unsupported version API $SL_Ver"
+    return 1
+  fi
+  #
   _debug "Getting txt records"
-  _sl_rest GET "/${_domain_id}/records/"
-
+  _ext_uri="${_ext_srv1}$_domain_id${_ext_srv2}"
+  _debug _ext_uri "$_ext_uri"
+  _sl_rest GET "${_ext_uri}"
+  #
   if ! _contains "$response" "$txtvalue"; then
     _err "Txt record not found"
     return 1
   fi
-
-  _record_seg="$(echo "$response" | _egrep_o "[^{]*\"content\" *: *\"$txtvalue\"[^}]*}")"
+  #
+  if [ "$SL_Ver" = "v2" ]; then
+    _record_seg="$(echo "$response" | sed -En "s/.*(\{\"id\"[^}]*records[^[]*(\[(\{[^]]*${txtvalue}[^]]*)\])[^}]*}).*/\1/gp")"
+    _record_arr="$(echo "$response" | sed -En "s/.*(\{\"id\"[^}]*records[^[]*(\[(\{[^]]*${txtvalue}[^]]*)\])[^}]*}).*/\3/p")"
+  elif [ "$SL_Ver" = "v1" ]; then
+    _record_seg="$(echo "$response" | _egrep_o "[^{]*\"content\" *: *\"$txtvalue\"[^}]*}")"
+  else
+    _err "Error. Unsupported version API $SL_Ver"
+    return 1
+  fi
   _debug2 "_record_seg" "$_record_seg"
   if [ -z "$_record_seg" ]; then
     _err "can not find _record_seg"
     return 1
   fi
-
-  _record_id="$(echo "$_record_seg" | tr "," "\n" | tr "}" "\n" | tr -d " " | grep "\"id\"" | cut -d : -f 2)"
-  _debug2 "_record_id" "$_record_id"
+  # record id
+  # the following lines change the algorithm for deleting records with the value $txtvalue
+  # if you use the 1st line, then all such records are deleted at once
+  # if you use the 2nd line, then only the first entry from them is deleted
+  #_record_id="$(echo "$_record_seg" | tr "," "\n" | tr "}" "\n" | tr -d " " | grep "\"id\"" | cut -d : -f 2 | tr -d "\"")"
+  _record_id="$(echo "$_record_seg" | tr "," "\n" | tr "}" "\n" | tr -d " " | grep "\"id\"" | cut -d : -f 2 | tr -d "\"" | sed '1!d')"
   if [ -z "$_record_id" ]; then
     _err "can not find _record_id"
     return 1
   fi
-
-  if ! _sl_rest DELETE "/$_domain_id/records/$_record_id"; then
-    _err "Delete record error."
-    return 1
+  _debug2 "_record_id" "$_record_id"
+  # delete all record type TXT with text $txtvalue
+  if [ "$SL_Ver" = "v2" ]; then
+    # actual
+    _new_arr="$(echo "$_record_seg" | sed -En "s/.*(\{\"id\"[^}]*records[^[]*(\[(\{[^]]*${txtvalue}[^]]*)\])[^}]*}).*/\3/gp" | sed -En "s/(\},\{)/}\n{/gp" | sed "/${txtvalue}/d" | sed ":a;N;s/\n/,/;ta")"
+    # uri record for DEL or PATCH
+    _del_uri="${_ext_uri}${_record_id}"
+    _debug _del_uri "$_del_uri"
+    if [ -z "$_new_arr" ]; then
+      # remove record
+      if ! _sl_rest DELETE "${_del_uri}"; then
+        _err "Delete record error: ${_del_uri}."
+      else
+        info "Delete record success: ${_del_uri}."
+      fi
+    else
+      # update a record by removing one element in content
+      _data="{\"ttl\": 60, \"records\": [${_new_arr}]}"
+      _debug2 _data "$_data"
+      # REST API PATCH call
+      if _sl_rest PATCH "${_del_uri}" "$_data"; then
+        _info "Patched, OK: ${_del_uri}"
+      else
+        _err "Patched record error: ${_del_uri}."
+      fi
+    fi
+  else
+    # legacy
+    for _one_id in $_record_id; do
+      _del_uri="${_ext_uri}${_one_id}"
+      _debug _del_uri "$_del_uri"
+      if ! _sl_rest DELETE "${_del_uri}"; then
+        _err "Delete record error: ${_del_uri}."
+      else
+        info "Delete record success: ${_del_uri}."
+      fi
+    done
   fi
   return 0
 }
 
 ####################  Private functions below ##################################
-#_acme-challenge.www.domain.com
-#returns
-# _sub_domain=_acme-challenge.www
-# _domain=domain.com
-# _domain_id=sdjkglgdfewsdfg
+
 _get_root() {
   domain=$1
 
-  if ! _sl_rest GET "/"; then
-    return 1
-  fi
-
-  i=2
-  p=1
-  while true; do
-    h=$(printf "%s" "$domain" | cut -d . -f "$i"-100)
-    _debug h "$h"
-    if [ -z "$h" ]; then
-      #not valid
+  if [ "$SL_Ver" = 'v1' ]; then
+    # version API 1
+    if ! _sl_rest GET "/"; then
       return 1
     fi
-
-    if _contains "$response" "\"name\" *: *\"$h\","; then
-      _sub_domain=$(printf "%s" "$domain" | cut -d . -f 1-"$p")
-      _domain=$h
-      _debug "Getting domain id for $h"
-      if ! _sl_rest GET "/$h"; then
+    i=2
+    p=1
+    while true; do
+      h=$(printf "%s" "$domain" | cut -d . -f "$i"-100)
+      _debug h "$h"
+      if [ -z "$h" ]; then
         return 1
       fi
-      _domain_id="$(echo "$response" | tr "," "\n" | tr "}" "\n" | tr -d " " | grep "\"id\":" | cut -d : -f 2)"
-      return 0
+      if _contains "$response" "\"name\" *: *\"$h\","; then
+        _sub_domain=$(printf "%s" "$domain" | cut -d . -f 1-"$p")
+        _domain=$h
+        _debug "Getting domain id for $h"
+        if ! _sl_rest GET "/$h"; then
+          _err "Error read records of all domains $SL_Ver"
+          return 1
+        fi
+        _domain_id="$(echo "$response" | tr "," "\n" | tr "}" "\n" | tr -d " " | grep "\"id\":" | cut -d : -f 2)"
+        return 0
+      fi
+      p=$i
+      i=$(_math "$i" + 1)
+    done
+    _err "Error read records of all domains $SL_Ver"
+    return 1
+  elif [ "$SL_Ver" = "v2" ]; then
+    # version API 2
+    _ext_uri='/zones/'
+    domain="${domain}."
+    _debug "domain:: " "$domain"
+    # read records of all domains
+    if ! _sl_rest GET "$_ext_uri"; then
+      _err "Error read records of all domains $SL_Ver"
+      return 1
     fi
-    p=$i
-    i=$(_math "$i" + 1)
-  done
-  return 1
+    i=1
+    p=1
+    while true; do
+      h=$(printf "%s" "$domain" | cut -d . -f "$i"-100)
+      _debug h "$h"
+      if [ -z "$h" ]; then
+        _err "The domain was not found among the registered ones"
+        return 1
+      fi
+      _domain_record=$(echo "$response" | sed -En "s/.*(\{[^}]*id[^}]*\"name\" *: *\"$h\"[^}]*}).*/\1/p")
+      _debug "_domain_record:: " "$_domain_record"
+      if [ -n "$_domain_record" ]; then
+        _sub_domain=$(printf "%s" "$domain" | cut -d . -f 1-"$p")
+        _domain=$h
+        _debug "Getting domain id for $h"
+        _domain_id=$(echo "$_domain_record" | sed -En "s/\{[^}]*\"id\" *: *\"([^\"]*)\"[^}]*\}/\1/p")
+        return 0
+      fi
+      p=$i
+      i=$(_math "$i" + 1)
+    done
+    _err "Error read records of all domains $SL_Ver"
+    return 1
+  else
+    _err "Error. Unsupported version API $SL_Ver"
+    return 1
+  fi
 }
 
+#################################################################
+# use: method add_url body
 _sl_rest() {
   m=$1
   ep="$2"
   data="$3"
-  _debug "$ep"
 
-  export _H1="X-Token: $SL_Key"
+  _token=$(_get_auth_token)
+  if [ -z "$_token" ]; then
+    _err "BAD key or token $ep"
+    return 1
+  fi
+  if [ "$SL_Ver" = v2 ]; then
+    _h1_name="X-Auth-Token"
+  else
+    _h1_name='X-Token'
+  fi
+  export _H1="${_h1_name}: ${_token}"
   export _H2="Content-Type: application/json"
-
+  _debug2 "Full URI: " "$SL_Api/${SL_Ver}${ep}"
+  _debug2 "_H1:" "$_H1"
+  _debug2 "_H2:" "$_H2"
   if [ "$m" != "GET" ]; then
     _debug data "$data"
-    response="$(_post "$data" "$SL_Api/$ep" "" "$m")"
+    response="$(_post "$data" "$SL_Api/${SL_Ver}${ep}" "" "$m")"
   else
-    response="$(_get "$SL_Api/$ep")"
+    response="$(_get "$SL_Api/${SL_Ver}${ep}")"
   fi
-
+  # shellcheck disable=SC2181
   if [ "$?" != "0" ]; then
     _err "error $ep"
     return 1
@@ -163,3 +333,152 @@ _sl_rest() {
   _debug2 response "$response"
   return 0
 }
+
+_get_auth_token() {
+  if [ "$SL_Ver" = 'v1' ]; then
+    # token for v1
+    _debug "Token v1"
+    _token_keystone=$SL_Key
+  elif [ "$SL_Ver" = 'v2' ]; then
+    # token for v2. Get a token for calling the API
+    _debug "Keystone Token v2"
+    token_v2=$(_readaccountconf_mutable SL_Token_V2)
+    if [ -n "$token_v2" ]; then
+      # The structure with the token was considered. Let's check its validity
+      # field 1 - SL_Login_Name
+      # field 2 - token keystone
+      # field 3 - SL_Login_ID
+      # field 4 - SL_Project_Name
+      # field 5 - Receipt time
+      # separator - '$_sl_sep'
+      _login_name=$(_getfield "$token_v2" 1 "$_sl_sep")
+      _token_keystone=$(_getfield "$token_v2" 2 "$_sl_sep")
+      _project_name=$(_getfield "$token_v2" 4 "$_sl_sep")
+      _receipt_time=$(_getfield "$token_v2" 5 "$_sl_sep")
+      _login_id=$(_getfield "$token_v2" 3 "$_sl_sep")
+      _debug2 _login_name "$_login_name"
+      _debug2 _login_id "$_login_id"
+      _debug2 _project_name "$_project_name"
+      # check the validity of the token for the user and the project and its lifetime
+      _dt_diff_minute=$((($(date +%s) - _receipt_time) / 60))
+      _debug2 _dt_diff_minute "$_dt_diff_minute"
+      [ "$_dt_diff_minute" -gt "$SL_Expire" ] && unset _token_keystone
+      if [ "$_project_name" != "$SL_Project_Name" ] || [ "$_login_name" != "$SL_Login_Name" ] || [ "$_login_id" != "$SL_Login_ID" ]; then
+        unset _token_keystone
+      fi
+      _debug "Get exists token"
+    fi
+    if [ -z "$_token_keystone" ]; then
+      # the previous token is incorrect or was not received, get a new one
+      _debug "Update (get new) token"
+      _data_auth="{\"auth\":{\"identity\":{\"methods\":[\"password\"],\"password\":{\"user\":{\"name\":\"${SL_Login_Name}\",\"domain\":{\"name\":\"${SL_Login_ID}\"},\"password\":\"${SL_Pswd}\"}}},\"scope\":{\"project\":{\"name\":\"${SL_Project_Name}\",\"domain\":{\"name\":\"${SL_Login_ID}\"}}}}}"
+      export _H1="Content-Type: application/json"
+      _result=$(_post "$_data_auth" "$auth_uri")
+      _token_keystone=$(grep 'x-subject-token' "$HTTP_HEADER" | sed -nE "s/[[:space:]]*x-subject-token:[[:space:]]*([[:print:]]*)(\r*)/\1/p")
+      _dt_curr=$(date +%s)
+      SL_Token_V2="${SL_Login_Name}${_sl_sep}${_token_keystone}${_sl_sep}${SL_Login_ID}${_sl_sep}${SL_Project_Name}${_sl_sep}${_dt_curr}"
+      _saveaccountconf_mutable SL_Token_V2 "$SL_Token_V2"
+    fi
+  else
+    # token set empty for unsupported version API
+    _token_keystone=""
+  fi
+  printf -- "%s" "$_token_keystone"
+}
+
+#################################################################
+# use: [non_save]
+_sl_init_vars() {
+  _non_save="${1}"
+  _debug2 _non_save "$_non_save"
+
+  _debug "First init variables"
+  # version API
+  SL_Ver="${SL_Ver:-$(_readaccountconf_mutable SL_Ver)}"
+  if [ -z "$SL_Ver" ]; then
+    SL_Ver="v1"
+  fi
+  if ! [ "$SL_Ver" = "v1" ] && ! [ "$SL_Ver" = "v2" ]; then
+    _err "You don't specify selectel.ru API version."
+    _err "Please define specify API version."
+  fi
+  _debug2 SL_Ver "$SL_Ver"
+  if [ "$SL_Ver" = "v1" ]; then
+    # token
+    SL_Key="${SL_Key:-$(_readaccountconf_mutable SL_Key)}"
+
+    if [ -z "$SL_Key" ]; then
+      SL_Key=""
+      _err "You don't specify selectel.ru api key yet."
+      _err "Please create you key and try again."
+      return 1
+    fi
+    #save the api key to the account conf file.
+    if [ -z "$_non_save" ]; then
+      _saveaccountconf_mutable SL_Key "$SL_Key"
+    fi
+  elif [ "$SL_Ver" = "v2" ]; then
+    # time expire token
+    SL_Expire="${SL_Expire:-$(_readaccountconf_mutable SL_Expire)}"
+    if [ -z "$SL_Expire" ]; then
+      SL_Expire=1400 # 23h 20 min
+    fi
+    if [ -z "$_non_save" ]; then
+      _saveaccountconf_mutable SL_Expire "$SL_Expire"
+    fi
+    # login service user
+    SL_Login_Name="${SL_Login_Name:-$(_readaccountconf_mutable SL_Login_Name)}"
+    if [ -z "$SL_Login_Name" ]; then
+      SL_Login_Name=''
+      _err "You did not specify the selectel.ru API service user name."
+      _err "Please provide a service user name and try again."
+      return 1
+    fi
+    if [ -z "$_non_save" ]; then
+      _saveaccountconf_mutable SL_Login_Name "$SL_Login_Name"
+    fi
+    # user ID
+    SL_Login_ID="${SL_Login_ID:-$(_readaccountconf_mutable SL_Login_ID)}"
+    if [ -z "$SL_Login_ID" ]; then
+      SL_Login_ID=''
+      _err "You did not specify the selectel.ru API user ID."
+      _err "Please provide a user ID and try again."
+      return 1
+    fi
+    if [ -z "$_non_save" ]; then
+      _saveaccountconf_mutable SL_Login_ID "$SL_Login_ID"
+    fi
+    # project name
+    SL_Project_Name="${SL_Project_Name:-$(_readaccountconf_mutable SL_Project_Name)}"
+    if [ -z "$SL_Project_Name" ]; then
+      SL_Project_Name=''
+      _err "You did not specify the project name."
+      _err "Please provide a project name and try again."
+      return 1
+    fi
+    if [ -z "$_non_save" ]; then
+      _saveaccountconf_mutable SL_Project_Name "$SL_Project_Name"
+    fi
+    # service user password
+    SL_Pswd="${SL_Pswd:-$(_readaccountconf_mutable SL_Pswd)}"
+    if [ -z "$SL_Pswd" ]; then
+      SL_Pswd=''
+      _err "You did not specify the service user password."
+      _err "Please provide a service user password and try again."
+      return 1
+    fi
+    if [ -z "$_non_save" ]; then
+      _saveaccountconf_mutable SL_Pswd "$SL_Pswd" "12345678"
+    fi
+  else
+    SL_Ver=""
+    _err "You also specified the wrong version of the selectel.ru API."
+    _err "Please provide the correct API version and try again."
+    return 1
+  fi
+  if [ -z "$_non_save" ]; then
+    _saveaccountconf_mutable SL_Ver "$SL_Ver"
+  fi
+
+  return 0
+}