# BotAliasHistoryEvent
<a name="API_BotAliasHistoryEvent"></a>

Provides a record of an event that affects a bot alias. For example, when the version of a bot that the alias points to changes.

## Contents
<a name="API_BotAliasHistoryEvent_Contents"></a>

 ** botVersion **   <a name="lexv2-Type-BotAliasHistoryEvent-botVersion"></a>
The version of the bot that was used in the event.   
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 5.  
Pattern: `^(DRAFT|[0-9]+)$`   
Required: No

 ** endDate **   <a name="lexv2-Type-BotAliasHistoryEvent-endDate"></a>
The date and time that the event ended.  
Type: Timestamp  
Required: No

 ** startDate **   <a name="lexv2-Type-BotAliasHistoryEvent-startDate"></a>
The date and time that the event started.  
Type: Timestamp  
Required: No

## See Also
<a name="API_BotAliasHistoryEvent_SeeAlso"></a>

For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/models.lex.v2-2020-08-07/BotAliasHistoryEvent) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/models.lex.v2-2020-08-07/BotAliasHistoryEvent) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/models.lex.v2-2020-08-07/BotAliasHistoryEvent)