diff --git a/docs/strategy-customization.md b/docs/strategy-customization.md
index e344c1b7d..3a8425b4e 100644
--- a/docs/strategy-customization.md
+++ b/docs/strategy-customization.md
@@ -35,7 +35,7 @@ The bot also include a sample strategy called `SampleStrategy` you can update: `
 You can test it with the parameter: `--strategy SampleStrategy`
 
 Additionally, there is an attribute called `INTERFACE_VERSION`, which defines the version of the strategy interface the bot should use.
-The current version is 2 - which is also the default when it's not set explicitly in the strategy.
+The current version is 3 - which is also the default when it's not set explicitly in the strategy.
 
 Future versions will require this to be set.
 
diff --git a/docs/strategy_migration.md b/docs/strategy_migration.md
index d2614444a..9f0300fe3 100644
--- a/docs/strategy_migration.md
+++ b/docs/strategy_migration.md
@@ -20,6 +20,7 @@ If you intend on using markets other than spot markets, please migrate your stra
 * Introduced new `leverage` callback
 * `@informative` decorator now takes an optional `candle_type` argument
 * helper methods `stoploss_from_open` and `stoploss_from_absolute` now take `is_short` as additional argument.
+* `INTERFACE_VERSION` should be set to 3.
 
 ## Extensive explanation
 
diff --git a/freqtrade/strategy/interface.py b/freqtrade/strategy/interface.py
index 3fddc98df..c759d50de 100644
--- a/freqtrade/strategy/interface.py
+++ b/freqtrade/strategy/interface.py
@@ -62,7 +62,8 @@ class IStrategy(ABC, HyperStrategyMixin):
     # Default to version 2
     # Version 1 is the initial interface without metadata dict
     # Version 2 populate_* include metadata dict
-    INTERFACE_VERSION: int = 2
+    # Version 3 - First version with short and leverage support
+    INTERFACE_VERSION: int = 3
 
     _populate_fun_len: int = 0
     _buy_fun_len: int = 0
diff --git a/freqtrade/templates/base_strategy.py.j2 b/freqtrade/templates/base_strategy.py.j2
index ef8f46f5c..78ee8572e 100644
--- a/freqtrade/templates/base_strategy.py.j2
+++ b/freqtrade/templates/base_strategy.py.j2
@@ -35,7 +35,7 @@ class {{ strategy }}(IStrategy):
     """
     # Strategy interface version - allow new iterations of the strategy interface.
     # Check the documentation or the Sample strategy to get the latest version.
-    INTERFACE_VERSION = 2
+    INTERFACE_VERSION = 3
 
     # Optimal timeframe for the strategy.
     timeframe = '5m'
diff --git a/freqtrade/templates/sample_short_strategy.py b/freqtrade/templates/sample_short_strategy.py
index 1dfd1df0d..6be46430b 100644
--- a/freqtrade/templates/sample_short_strategy.py
+++ b/freqtrade/templates/sample_short_strategy.py
@@ -36,7 +36,7 @@ class SampleShortStrategy(IStrategy):
     """
     # Strategy interface version - allow new iterations of the strategy interface.
     # Check the documentation or the Sample strategy to get the latest version.
-    INTERFACE_VERSION = 2
+    INTERFACE_VERSION = 3
 
     # Can this strategy go short?
     can_short: bool = True
diff --git a/freqtrade/templates/sample_strategy.py b/freqtrade/templates/sample_strategy.py
index fe1bd22fb..08a690ab0 100644
--- a/freqtrade/templates/sample_strategy.py
+++ b/freqtrade/templates/sample_strategy.py
@@ -35,7 +35,7 @@ class SampleStrategy(IStrategy):
     """
     # Strategy interface version - allow new iterations of the strategy interface.
     # Check the documentation or the Sample strategy to get the latest version.
-    INTERFACE_VERSION = 2
+    INTERFACE_VERSION = 3
 
     # Can this strategy go short?
     can_short: bool = False