Updated dnsapi (markdown)

dnsapi.md

@@ -1051,6 +1051,15 @@ Then you can issue the certificate with acme.sh, for example:
 <a name="dns_selectel" />
 
 ## 38. Use selectel.com(selectel.ru) domain API to automatically issue cert
+The provider currently supports two API versions: v1 (legacy) and v2 (actual).
+Legacy version is supported in a limited way and will be disabled from 09.2025.
+
+The module supports both API versions.
+
+The **SL_Ver** variable is used to determine the API version,
+the value must be either 'v1' or 'v2'. By default, 'v1'.
+
+**_For old installations using the API version 'v1' (legacy), everything remains the same:_**
 
 First you need to login to your account to get your API key from: https://my.selectel.ru/profile/apikeys.
 
@@ -1065,6 +1074,28 @@ Ok, let's issue a cert now:
 
 The `SL_Key` will be saved in `~/.acme.sh/account.conf` and will be reused when needed.
 
+**_If you are using API version 'v2' (actual), you need to define the following variables:_**
+
+```sh
+export SL_Ver=v2                        # version API
+export SL_Expire=60                     # token lifetime in minutes (0-1440). Default: 1400 minutes
+export SL_Login_ID=<account_id>         # account number
+export SL_Project_Name=<project_name>   # project name
+export SL_Login_Name=<login_name>       # service user name
+export SL_Pswd=<pawd>                   # user password
+```
+
+The account number in the control panel can be seen in the upper right corner on the provider's website
+
+The service user name can be seen in the control panel: https://my.selectel.ru/iam/users_management/users?type=service
+
+The password can only be viewed when creating a user, or only changed to a new one.
+
+Ok, let's issue a cert now:
+```sh
+./acme.sh --issue --dns dns_selectel -d example.com -d *.example.com
+```
+
 
 <a name="dns_zonomi" />