diff --git a/.docs/README.md b/.docs/README.md
index f7f2923..2c169ae 100644
--- a/.docs/README.md
+++ b/.docs/README.md
@@ -24,13 +24,15 @@ logging:
 
 Basically, it overrides Tracy's default logger by our universal, pluggable logger.
 
+Original logger is still in DIC with `logging.originalLogger` key.
+
 ### Default loggers
 
 There are 3 types of loggers defined by default.
 
 - **FileLogger** - creates <priority>.log file
-- **BlueScreenFileLogger** - creates exception-*.html
-- **SendMailLogger** - sends exception to email
+- **BlueScreenFileLogger** - creates exception-*.html from all throwable
+- **SendMailLogger** - sends throwable/message to email
 
 You can redefine these loggers in `logging.loggers`.
 
@@ -48,7 +50,23 @@ logging:
         )
         - App\Model\MyCustomerLogger
 ```
- 
+
+This configuration is functionally equal to original Tracy's logger, only separated to multiple classes.
+
+#### SendMailLogger
+
+Our SendMailLogger also allows configure priority levels.
+
+```yaml
+services: 
+    sendMaillogger:
+        setup: 
+            - setAllowedPriority(
+                Contributte\Logging\ILogger::WARNING,
+                Contributte\Logging\ILogger::ERROR
+            )
+```
+
 ### Custom logger 
 
 To create your custom logger you have to implement `Contributte\Logging\ILogger`.
@@ -170,3 +188,19 @@ There you obtained DNS url. Put the url into neon file.
 sentry:
     url: https://<key>@sentry.io/<project>
 ```
+
+`SentryLoggingExtension` adds `SentryLogger` with url configuration. It works as [SendMailLogger](#sendmaillogger). 
+
+It means that it sends messages/throwable with `ILogger::ERROR`, `ILogger::EXCEPTION`, `ILogger::CRITICAL` priorities.
+
+But if you need other priorities, you can change configuration.
+
+```yaml
+services: 
+    sentry.logger:
+        setup: 
+            - setAllowedPriority(
+                Contributte\Logging\ILogger::WARNING,
+                Contributte\Logging\ILogger::ERROR
+            )
+```
diff --git a/README.md b/README.md
index b38d277..85c1eba 100644
--- a/README.md
+++ b/README.md
@@ -26,8 +26,8 @@ composer require contributte/logging
 
 | State       | Version      | Branch   | PHP      |
 |-------------|--------------|----------|----------|
-| development | `dev-master` | `master` | `>= 5.6` |
-| stable      | `^0.2`       | `master` | `>= 5.6` |
+| development | `dev-master` | `master` | `>= 7.1` |
+| stable      | `^0.3`       | `master` | `>= 7.1` |
 
 ## Overview
 
diff --git a/composer.json b/composer.json
index 78526cd..efb615d 100644
--- a/composer.json
+++ b/composer.json
@@ -60,7 +60,7 @@
   },
   "extra": {
     "branch-alias": {
-      "dev-master": "0.3.x-dev"
+      "dev-master": "0.4.x-dev"
     }
   }
 }