Simple Message Queue (formerly MNS):Release notes

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2025-08-01

• Feature updates

  • The message class is updated to carry user-defined properties and system properties.

  • The MessageGroupId property is added to the message class.

• Bug fixes

  The dependency on aliyun-python-sdk-core-v3 is removed.

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2024-11-13

• Feature updates

  • Added queue_multi_thread.py as the best practice code for multi-threaded scenarios.

  • Optimized the naming of sample files in the sample directory.

• Bug fixes

  • Fixed an issue where the set_attributes method of the queue model incorrectly reset the queue properties to their default values.

  • Removed the dependency on pycrypto-2.6.1 to fix an installation error on the Windows platform for Python 3.

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2024-07-26

• Feature updates

  • Supports obtaining AccessKey ID and AccessKey secret from environment variables. For more information, see Configure endpoints and credentials.

  • Supports producing and consuming messages in the topic-based model and queue-based messaging model. You can select Base64 for encoding and decoding.

  • Added methods, such as receive_message_with_str_body, to support receiving messages whose body is a string.

  • Added sample code for the preceding features.

• Bug fixes

  • Fixed an issue where an incorrect client version was reported.

  • Fixed an issue where the Base64 encoding and decoding settings for a queue became invalid when you call the peek_message method, which caused messages to always be decoded in Base64.

  • Fixed Python compatibility issues.

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2021-05-13

• Added parsing for the ReceiptHandle in the return value of sent messages.

• Fixed Python 3 compatibility issues.

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2019-04-26

Made the SDK compatible with Python 3.

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2017-03-23

• The topic-based model supports pushing text messages.

• Queues and topics support messages that contain Chinese characters.

• The mnscmd command supports specifying mnsEndpoint, accessKeyId, and accessKeySecret as parameters.

• The mnscmd command supports specifying whether to perform Base64 encoding and decoding on queue messages.

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What's new

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2016-09-13

• Supports passing through the RequestID to the SMQ side.

• Topic push supports QueueEndpoint and MailEndpoint.

• Topic message push supports the JSON format.

• The mnscmd command supports specifying a configuration file using config_file.

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2016-05-23

• Topic push supports message filtering.

• Added the sample directory, which contains more detailed sample code.

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2016-03-28

• Supports HTTPS.

• Supports logging.

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2016-01-05

• Added support for the topic feature.

• Added support for Security Token Service (STS) tokens.

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2015-06-09

• Supports SDK installation.

• Provides the mnscmd command.

• Upgraded the API protocol: "x-mns-version"="2015-06-06".

• Supports BatchSendMessage, BatchReceiveMessage, BatchPeekMessage, and BatchDeleteMessage.

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2015-02-03

• Unified the type of non-string queue properties to int.

• Corrected the return status of SetQueueAttribute to 204.

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Description

2014-08-01

Initial release.