diff --git a/README.md b/README.md
index 639b0af..fb78aed 100644
--- a/README.md
+++ b/README.md
@@ -11,9 +11,10 @@ a set period of time with a defined list of projects and rules.
 The primary objective of this repository is to establish a Domain Specific Language (DSL) 
 for leaderboards, projects, and seasons. Using this DSL, all ranks can be calculated 
 through backends. A backend is an implementation of metrics calculation based on a 
-specific data source. Currently, there are two backends:
+specific data source. Currently, there are three backends:
 * re:doubt DB, which is based on [ton-indexer](https://github.com/re-doubt/ton-indexer) and 
-[Tonalytica](https://tonalytica.redoubt.online/). It is used for all leaderboards except of DeFi.
+[Tonalytica](https://tonalytica.redoubt.online/). It is used for all leaderboards except of DeFi. It is deprecated since S6.
+* toncenter_cpp, which is based on [ton-index-worker](https://github.com/toncenter/ton-index-worker) by [Toncenter](https://toncenter.com/) and [TON-ETL](https://github.com/re-doubt/ton-etl).
 * [DefiLlama](./backends/defi.py) with on-chain data from [Tonapi](https://tonapi.io/) - used for the DeFi Leaderboard.
 
 Main entities:
@@ -43,6 +44,7 @@ List of the seasons supported with the leaderboard links
 | [S3.5](./seasons/s3_5.py) - test season (no actual competition), between S3 and S4.                                          | <ul><li>Tokens: [HTML](https://the-open-league-static-data.s3.amazonaws.com/season/s3_5/token.html), [JSON](https://the-open-league-static-data.s3.amazonaws.com/season/s3_5/token.json)</li><li>Apps: [HTML](https://the-open-league-static-data.s3.amazonaws.com/season/s3_5/app.html), [JSON](https://the-open-league-static-data.s3.amazonaws.com/season/s3_5/app.json)</ul>                                                                                                                                                                                                                                                                                                                                                                   |
 | [S4](./seasons/s4.py) - [Methodology](https://ton-org.notion.site/TOL-Season-4-Methodology-30e741e37eb64933b1cd5e61c4546033) | <ul><li>Tokens: [HTML](https://the-open-league-static-data.s3.amazonaws.com/season/S4/tokens.html), [JSON](https://the-open-league-static-data.s3.amazonaws.com/season/S4/tokens.json)</li><li>Apps: [HTML](https://the-open-league-static-data.s3.amazonaws.com/season/S4/apps.html), [JSON](https://the-open-league-static-data.s3.amazonaws.com/season/S4/apps.json)</li><li>DeFi: [HTML](https://the-open-league-static-data.s3.amazonaws.com/season/S4/defi.html), [JSON](https://the-open-league-static-data.s3.amazonaws.com/season/S4/defi.json)</li><li>NFT: [HTML](https://the-open-league-static-data.s3.amazonaws.com/season/S4/nfts.html), [JSON](https://the-open-league-static-data.s3.amazonaws.com/season/S4/nfts.json)</li></ul> |
 | [S5](./seasons/s5.py) - [Methodology](https://ton-org.notion.site/TOL-Season-5-Methodology-43102aba33ff436ca3a8590b71587150) | <ul><li>Tokens: [HTML](https://the-open-league-static-data.s3.amazonaws.com/season/S5/tokens.html), [JSON](https://the-open-league-static-data.s3.amazonaws.com/season/S5/tokens.json)</li><li>Apps: [HTML](https://the-open-league-static-data.s3.amazonaws.com/season/S5/apps.html), [JSON](https://the-open-league-static-data.s3.amazonaws.com/season/S5/apps.json)</li><li>DeFi: [HTML](https://the-open-league-static-data.s3.amazonaws.com/season/S5/defi.html), [JSON](https://the-open-league-static-data.s3.amazonaws.com/season/S5/defi.json)</li><li>NFT: [HTML](https://the-open-league-static-data.s3.amazonaws.com/season/S5/nfts.html), [JSON](https://the-open-league-static-data.s3.amazonaws.com/season/S5/nfts.json)</li></ul> |
+| [S6](./seasons/s6.py) - [Methodology](https://ton-org.notion.site/App-DeFi-and-NFT-Leagues-S6-General-Rules-2edaf02d110341b48c275ca2a46eef34) | <ul><li>Apps: [HTML](https://the-open-league-static-data.s3.amazonaws.com/season/S6/apps.html), [JSON](https://the-open-league-static-data.s3.amazonaws.com/season/S6/apps.json)</li><li>DeFi TVL: [HTML](https://the-open-league-static-data.s3.amazonaws.com/season/S6/defi_tvl.html), [JSON](https://the-open-league-static-data.s3.amazonaws.com/season/S6/defi_tvl.json)</li> <li>DeFi Volume: [HTML](https://the-open-league-static-data.s3.amazonaws.com/season/S6/defi_volume.html), [JSON](https://the-open-league-static-data.s3.amazonaws.com/season/S6/defi_volume.json)</li> <li>NFT: [HTML](https://the-open-league-static-data.s3.amazonaws.com/season/S6/nfts.html), [JSON](https://the-open-league-static-data.s3.amazonaws.com/season/S6/nfts.json)</li></ul> |
 
 ## Adding metrics for your project
 
diff --git a/models/metrics/smc_interaction.py b/models/metrics/smc_interaction.py
index d2c2c72..7ac5a6e 100644
--- a/models/metrics/smc_interaction.py
+++ b/models/metrics/smc_interaction.py
@@ -73,22 +73,6 @@ def calculate(self, context: CalculationContext, metric):
         )
 
         """
-    
-
-        # return f"""
-        # select 
-        #         -t.hash as id, '{context.project.name}' as project,
-        #         source as user_address, t.now as ts from transactions_local t
-        #         join messages m on m.tx_hash = t.hash and direction = 'in'
-        #         -- TODO replace left join to inner join for comment_required case
-        #         left join parsed.message_comments mc on mc.hash = m.body_hash
-        # where ({address_filter}) {'and length("comment") > 0' if metric.comment_required else ''}
-        #  {comment_regexp_filter} {comment_not_equals_filter}
-        # AND (
-        #     {op_codes_filter}
-        # )
-
-        # """
 
 
 """