This topic describes the feature changes and related documentation for each release of Object Storage Service (OSS). Use this topic to stay informed about the latest OSS updates.
June 2026
Feature Name | Overview | Release date | Supported regions | References |
OSS C++ SDK V2 | Use OSS C++ SDK V2 to integrate Alibaba Cloud Object Storage Service (OSS) into C++ applications to upload, download, and manage files. The SDK is suitable for high-performance scenarios, embedded systems, and desktop applications that perform cloud storage operations. | 2026-06-04 | All |
May 2026
Feature Name | Overview | Release date | Supported regions | References |
OSS Agent | OSS Agent is an agent service provided by Alibaba Cloud Object Storage Service (OSS). It supports bucket management, anomaly diagnosis, health checks, and cost analysis through natural language. It also provides semantic search and direct conversation capabilities for multimodal data such as videos, images, and documents in buckets. | 2026-05-15 | All Note OSS Agent is available for invitational preview. To enable this feature, contact Technical Support. |
March 2026
Feature Name | Overview | Release date | Supported regions | References |
Object-level retention policy (ObjectWorm) | OSS introduces object-level retention policies (ObjectWorm). You can set an independent retention policy for a single object to meet granular compliance requirements. After you enable this feature, you can specify a retention mode and expiration date for uploaded objects. During the retention period, objects cannot be deleted or overwritten. | 2026-03-31 | China (Hangzhou), China (Chengdu), China (Shenzhen), China (Guangzhou), China (Qingdao), China (Beijing), China (Hohhot), China (Heyuan), China (Hong Kong), Germany (Frankfurt), Japan (Tokyo), South Korea (Seoul), Singapore, Malaysia (Kuala Lumpur), Indonesia (Jakarta), Philippines (Manila), Thailand (Bangkok), SAU (Riyadh - Partner Region), UAE (Dubai) | |
Data replication tag filtering | When you configure data replication rules, you can set filtering rules based on object tags. Only objects with specified tags are replicated to the destination bucket. | 2026-03-24 | All regions | |
OSS Backint Agent for SAP HANA | Directly transfer SAP HANA backup data to Alibaba Cloud OSS through the SAP Backint interface. | 2026-03-12 | All | |
New version of OSS Connector for AI/ML (inference) released | OSS Connector Lib V1.2.0 is released. This version adds features such as multi-model loading, cache capacity limits, and model broadcasting. It also supports Kubernetes deployment. | 2026-03-20 | All | |
New version of OSS Connector for AI/ML (training) released | OssTorchConnector V1.2.3 is released. This version adds support for Python 3.13. OssCheckpoint now supports the DCP and safetensors formats. A new OSS Region configuration is also added. | 2026-03-17 | All |
February 2026
Feature Name | Overview | Release date | Supported regions | References |
AI content awareness | OSS uses multimodal AI models to automatically extract semantic descriptions and concise summaries for files stored in a bucket and builds them into a searchable index. This lets you search file content directly using natural language, enabling advanced search features such as text-to-image and text-to-video search. This significantly improves data retrieval accuracy and efficiency and provides a solid foundation for building upper-layer applications such as retrieval-augmented generation (RAG). | 2026-02-10 | Singapore, US (Virginia) Note Submit a ticket to apply. | |
OSS Vectors scalability upgrade | The upper limit for a single table in OSS Vectors is adjusted to 2 billion rows by default, and the upper limit for TopK in retrieval is adjusted to 100 by default. | 2026-02-03 | China (Shenzhen), China (Beijing), China (Hangzhou), China (Shanghai), China (Ulanqab), Singapore, China (Hong Kong), Indonesia (Jakarta), Germany (Frankfurt), US (Silicon Valley), US (Virginia) | |
OSS Vectors adds support for new regions | Adds support for the China (Hong Kong), Indonesia (Jakarta), Germany (Frankfurt), US (Silicon Valley), and US (Virginia) regions. | 2026-02-03 | China (Shenzhen), China (Beijing), China (Hangzhou), China (Shanghai), China (Ulanqab), Singapore, China (Hong Kong), Indonesia (Jakarta), Germany (Frankfurt), US (Silicon Valley), US (Virginia) | |
OSS Vectors on Alibaba Cloud International Website (www.alibabacloud.com) moves from invitational preview to public preview | OSS Vectors on Alibaba Cloud International Website (www.alibabacloud.com) officially ends its invitational preview and enters public preview. It can be used directly without an application. | 2026-02-03 | China (Shenzhen), China (Beijing), China (Hangzhou), China (Shanghai), China (Ulanqab), Singapore, China (Hong Kong), Indonesia (Jakarta), Germany (Frankfurt), US (Silicon Valley), US (Virginia) | |
AI content awareness | OSS uses multimodal AI models to automatically extract semantic descriptions and concise summaries for files stored in a bucket and builds them into a searchable index. This lets you search file content directly using natural language, enabling advanced search features such as text-to-image and text-to-video search. This significantly improves data retrieval accuracy and efficiency and provides a solid foundation for building upper-layer applications such as retrieval-augmented generation (RAG). | 2026-02-03 | China (Beijing), China (Zhangjiakou), China (Hangzhou), China (Shanghai), China (Shenzhen), China (Chengdu) |
January 2026
Feature Name | Overview | Release date | Supported regions | References |
OSS Kotlin SDK V2 | OSS Kotlin SDK V2 is the second version of the OSS SDK for the Kotlin programming language. It supports Kotlin 2.1.0+ and covers Android and Desktop (JVM) platforms. You can quickly integrate it through Gradle dependencies or build from source and publish to MavenLocal for convenient upload, download, and data management. | 2026-01-29 | All | |
OSS Vectors Embed CLI | The OSS Vectors Embed command-line interface (CLI) tool lets you easily call Alibaba Cloud Model Studio vector models. You can vectorize raw files in OSS or local files and write the vectorized results to an OSS vector bucket to initiate multimodal semantic retrieval. | 2026-01-13 | All | Use the OSS Vectors Embed CLI tool to write and retrieve vector data |
December 2025
Feature Name | Overview | Release date | Supported regions | References |
OSS MCP Server | OSS MCP Server is a server implementation based on the Model Context Protocol (MCP). It provides AI applications with the ability to operate Alibaba Cloud OSS. Developers can integrate OSS management features into MCP-supported AI tools, such as Cursor and Cherry Studio, to perform cloud storage operations through natural language. | 2025-12-23 | All | |
CNAME | A CNAME is a system-generated, independent resolution endpoint specifically for binding custom domain names. When you need to bind your own domain name, such as img.example.com, to a bucket, you no longer point it to the generic default bucket domain name. Instead, you point it to the system-assigned CNAME. The CNAME is used only for DNS resolution of custom domain names and cannot be used directly for access requests. | 2025-12-22 | All | |
Prevent file overwrites | If you want to prevent files in an OSS bucket from being accidentally or maliciously modified after the initial upload, you can set a rule to prevent overwrites for that bucket. You can precisely control which files cannot be overwritten based on file path, type, or operator identity. | 2025-12-02 | All | |
Enable retention policy and versioning at the same time | Versioning ensures that when an object is overwritten or deleted, its old version is retained as a historical version instead of being physically deleted. A retention policy sets a protection period for all object versions in a bucket. During this period, no version can be deleted or modified. | 2025-12-02 | All |
October 2025
Feature Name | Overview | Release date | Supported regions | References |
OSS Vectors adds support for new regions | Adds support for the China (Hangzhou), China (Shanghai), China (Ulanqab), and Singapore regions. | 2025-11-05 | China (Shenzhen), China (Beijing), China (Hangzhou), China (Shanghai), China (Ulanqab), Singapore | |
Batch Operations | For large-scale scenarios such as tag management, permission adjustments, and data restoration, traditional methods require writing batch operation programs based on the OSS SDK and managing task execution status. Batch Operations provides a managed solution. A single job can process 10 billion objects, allowing you to manage tags, modify ACLs, and restore data without coding. | 2025-10-15 | China (Hangzhou), China (Ulanqab) |
September 2025
Feature Name | Overview | Release date | Supported regions | References |
OSS Vectors | OSS Vectors is a vector storage and retrieval capability provided by Alibaba Cloud Object Storage Service (OSS). It uses a dedicated vector bucket type to store, query, and manage vector data. It is low-cost, large-scale, and easy to use, providing vector storage and query capabilities for AI scenarios such as multimodal retrieval, knowledge bases, RAG, and AI agents. | 2025-09-24 | China (Shenzhen), China (Beijing) | |
Resource pools support priority-based throttling | If multiple business systems share an OSS resource pool, the priority-based throttling feature lets administrators set 3 to 10 priority levels for different business objects, such as buckets, bucket groups, or requesters. You can configure a minimum bandwidth commitment for each level. When bandwidth resources are limited, core services, such as online transactions, are prioritized. Low-priority services, such as log backups, use the remaining resources. This ensures that important services are not affected by traffic bursts from other services and enables differentiated Quality of Service (QoS) management within the resource pool. | 2025-09-23 | China (Qingdao), China (Hangzhou), China (Hong Kong), US (Silicon Valley), US (Virginia), Japan (Tokyo), South Korea (Seoul), Singapore, Indonesia (Jakarta), Philippines (Manila), Thailand (Bangkok), Germany (Frankfurt), UK (London), UAE (Dubai) | |
Standard ZRS adds support for dual-zone deployment in new regions | For regions with two zones, OSS Standard zone-redundant storage (ZRS) uses a dual-zone data redundancy mechanism. It stores your data redundantly across two zones in the same region. If one zone becomes unavailable, your data remains accessible. Standard ZRS with dual-zone deployment provides 99.9999999999% (twelve 9s) data persistence and 99.99% service availability. | 2025-09-11 | UK (London), Thailand (Bangkok), UAE (Dubai) | |
Standard ZRS adds support for multi-zone deployment in new regions | In regions that support multiple zones (AZs), OSS Standard ZRS stores your data redundantly across multiple zones in the same region. If one zone becomes unavailable, your data remains accessible. Standard ZRS with multi-zone deployment provides 99.9999999999% (twelve 9s) data persistence and 99.995% service availability. | 2025-09-11 | Malaysia (Kuala Lumpur) | |
IA ZRS adds support for multi-zone deployment in new regions | In regions that support multiple zones (AZs), OSS Infrequent Access (IA) ZRS stores your data redundantly across multiple zones in the same region. If one zone becomes unavailable, your data remains accessible. IA ZRS with multi-zone deployment provides 99.9999999999% (twelve 9s) data persistence and 99.50% service availability. | 2025-09-11 | Malaysia (Kuala Lumpur) | |
Archive ZRS adds support for multi-zone deployment in new regions | In regions that support multiple zones (AZs), OSS Archive Storage ZRS stores your data redundantly across multiple zones in the same region. If one zone becomes unavailable, your data remains accessible. Archive Storage ZRS with multi-zone deployment provides 99.9999999999% (twelve 9s) data persistence and 99.50% service availability. | 2025-09-11 | Malaysia (Kuala Lumpur) |
August 2025
Feature Name | Overview | Release date | Supported regions | References |
Java SDK V2.0 | Java SDK V2 is a major rewrite of the Java SDK V1 codebase. Java SDK V2 is a new version that simplifies underlying operations such as identity verification, automatic request retries, and error handling. Its interfaces let users access the Alibaba Cloud OSS service without complex programming. Java SDK V2 provides flexible and user-friendly parameter settings and rich advanced interfaces, such as paginators and asynchronous operations, to comprehensively improve development efficiency and experience. | 2025-08-29 | All | |
OSS accelerator becomes generally available | OSS accelerator is now generally available. You are charged based on the provisioned capacity of the accelerator and its usage duration. It also supports zone-level deployment. | 2025-08-18 | China (Hangzhou), China (Shanghai), China (Beijing), China (Ulanqab), China (Shenzhen), Singapore |
July 2025
Feature Name | Overview | Release date | Supported regions | References |
Total public and internal upload bandwidth in the Singapore region increased to 20 Gbps | The default total public and internal upload bandwidth for a single Alibaba Cloud account in the Singapore region has been increased from 5 Gbps to 20 Gbps. | 2025-07-04 | Singapore |
June 2025
Feature Name | Overview | Release date | Supported regions | References |
.NET SDK V2.0 | .NET SDK V2 is a major rewrite of the .NET SDK V1 codebase. .NET SDK V2 is a new version that simplifies underlying operations such as identity verification, automatic request retries, and error handling. Its interfaces let users access the Alibaba Cloud OSS service without complex programming. .NET SDK V2 provides flexible and user-friendly parameter settings and rich advanced interfaces, such as paginators, to comprehensively improve development efficiency and experience. | 2025-06-06 | All |
April 2025
Feature Name | Overview | Release date | Supported regions | References |
Total public and internal download bandwidth in the Singapore region increased to 100 Gbps | The default total public and internal download bandwidth for a single Alibaba Cloud account in the Singapore region has been increased from 5 Gbps to 100 Gbps. | 2025-04-29 | Singapore | |
BucketGroup monitoring in resource pools | You can use Cloud Monitor to understand the performance thresholds and actual performance of each BucketGroup in a resource pool, and configure threshold alarms. | 2025-04-27 | All | |
Resource pools support BucketGroup throttling | Within the same resource pool, you can add multiple buckets with the same business attributes to a BucketGroup and configure the bandwidth for the BucketGroup as a whole. This greatly reduces configuration complexity and achieves time-sharing reuse of performance within the same business. | 2025-04-10 | All | |
New Standard-ZRS Storage Plan added | Deducts storage fees for OSS files of the Standard-ZRS storage class. | 2025-04-09 | General-purpose for the Chinese mainland, General-purpose for Hong Kong (China), Macao (China), Taiwan (China), and outside China | |
New Cold Archive-LRS Storage Plan added | Deducts storage fees for OSS files of the Cold Archive-LRS storage class. | 2025-04-09 | China (Hong Kong), Singapore | |
TLS cipher suite | A transport layer security (TLS) cipher suite defines a specific combination of encryption algorithms used to implement data encryption, identity verification, and integrity protection. After you specify a cipher suite, clients can only use the specified TLS version and cipher suite to send and receive data with OSS, meeting the security requirements of the communication link. | 2025-04-03 | UK (London) |
March 2025
Feature Name | Overview | Release date | Supported regions | References |
Standard ZRS supports dual-zone regions | For regions with two zones, OSS Standard ZRS uses a dual-zone data redundancy mechanism. It stores your data redundantly across two zones in the same region. If one zone becomes unavailable, your data remains accessible. Standard ZRS with dual-zone deployment provides 99.99% service availability and 99.9999999999% (twelve 9s) data persistence. | 2025-03-31 | Malaysia (Kuala Lumpur) | |
ossfs 2.0 | ossfs 2.0 is a refactored version of ossfs 1.0, designed for new types of compute-intensive application scenarios. It achieves a comprehensive performance upgrade but has some limitations on POSIX semantics. It is the future mainline evolution version. This tool is particularly suitable for new application scenarios such as AI model training and autonomous driving simulation. | 2025-03-25 | All | |
Harmony SDK | The Harmony SDK is a software development kit (SDK) specifically designed for Huawei HarmonyOS developers to help them easily access the Alibaba Cloud OSS service. | 2025-03-13 | All | |
Python SDK V2.0 | Python SDK V2 is a major rewrite of the Python SDK V1 codebase. Python SDK V2 is a new version that simplifies underlying operations such as identity verification, automatic request retries, and error handling. Its interfaces let users access the Alibaba Cloud OSS service without complex programming. Python SDK V2 provides flexible and user-friendly parameter settings and rich advanced interfaces, such as paginators, transfer managers, and file-like interfaces, to comprehensively improve development efficiency and experience. | 2025-03-07 | All |
January 2025
Feature Name | Overview | Release date | Supported regions | References |
Resource pool QoS monitoring | After enabling resource pool QoS, you can use Cloud Monitor to understand the performance thresholds and actual performance of each bucket and requester accessing the resource pool, and configure threshold alarms. | 2025-01-16 | All | |
OSS accelerator monitoring | After enabling the OSS accelerator, you can use the OSS accelerator monitoring feature. By observing four monitoring metrics—"Bandwidth Used, QPS Used, Hit Rate, and Latency"—you can accurately gain insights into the cache status to ensure efficient and smooth data transmission. | 2025-01-06 | All |
November 2024
Feature Name | Overview | Release date | Supported regions | References |
Resource pool QoS | After adding multiple buckets under your Alibaba Cloud account to the same resource pool, you can dynamically adjust the bandwidth of each bucket based on its purpose. This ensures that critical services and compute-intensive tasks receive priority resources during peak hours, avoiding bottlenecks caused by uneven resource allocation. | 2024-11-29 | All | |
Go SDK V2.0 | Go SDK V2 is a major rewrite of the Go SDK V1 codebase. Go SDK V2 is a new version that simplifies underlying operations such as identity verification, automatic request retries, and error handling. Its interfaces let users access the Alibaba Cloud OSS service without complex programming. Go SDK V2 provides flexible and user-friendly parameter settings and rich advanced interfaces, such as paginators, transfer managers, and file-like interfaces, to comprehensively improve development efficiency and experience. | 2024-11-26 | All |
October 2024
Feature Name | Overview | Release date | Supported regions | References |
ossbrowser 2.0 | ossbrowser 2.0 is an upgraded version of the old ossbrowser. It features a completely new user interface and interaction, with a focus on improving the user-friendliness and convenience of file management and transfer. New features include account logon, favoriting buckets, and editing files during preview. Using ossbrowser 2.0, you can manage your buckets more conveniently and efficiently. | 2024-10-30 | All |
September 2024
Feature Name | Overview | Release date | Supported regions | References |
Data Indexing - Vector Search | Data Indexing now supports vector search, adding search conditions based on semantic content, multimedia metadata, and custom metadata. By representing information from documents, images, videos, and audio files as semantic embeddings and using these embeddings for semantic similarity comparison and retrieval, it enables efficient retrieval based on file content and multimedia attributes. | 2024-09-25 | China (Qingdao), China (Beijing), China (Zhangjiakou), China (Hangzhou), China (Shanghai), China (Shenzhen), China (Guangzhou), China (Chengdu), China (Hong Kong), Singapore, Indonesia (Jakarta), Germany (Frankfurt) | |
OSS Connector for AI/ML | OSS Connector for AI/ML is a Python library for efficiently accessing and storing OSS data in PyTorch training tasks. It supports building map-style datasets for random access and stream-based sequential access, along with iterable datasets, based on data in OSS. It also supports creating OssCheckpoint objects, which can directly load checkpoints from OSS during model training and save checkpoints to OSS after periodic model training, simplifying the workflow. | 2024-09-02 | All |
July 2024
Feature Name | Overview | Release date | Supported regions | References |
ossutil 2.0 | Compared to version 1.0, ossutil 2.0 has made comprehensive and significant optimizations and improvements in the structure and supported types of configuration files, the uniformity of commands across different operating systems, the functionality and rules of various commands, the matching and support range of options, many parameters of the default configuration, and the default state of resumable uploads. | 2024-07-31 | All |
June 2024
Feature Name | Overview | Release date | Supported regions | References |
Access OSS resources through private endpoints | PrivateLink establishes a secure and stable private connection between a virtual private cloud (VPC) and services on Alibaba Cloud. It simplifies the network architecture and enables private access to services, avoiding the potential security risks of accessing services over the public network. | 2024-06-13 | China (Hangzhou), China (Shanghai), China (Beijing), China (Ulanqab), China (Shenzhen), China (Hong Kong), Singapore, Indonesia (Jakarta) |
May 2024
Feature Name | Overview | Release date | Supported regions | References |
Bandwidth limit adjustment | The total public and internal download bandwidth in the China (Hangzhou) region is increased to 100 Gbps. | 2024-05-10 | China (Hangzhou) |
April 2024
Feature Name | Overview | Release date | Supported regions | References |
Block Public Access | OSS supports public access through bucket policies and ACLs. Public access means that OSS resources can be accessed without specific permissions or identity verification. Public access can easily lead to data breaches and the risk of generating a large amount of outbound public traffic from malicious access. To avoid the risks associated with public access, OSS supports one-click enabling of Block Public Access at the global, single bucket, single access point, and single object FC access point levels. After Block Public Access is enabled, existing public access permissions are ignored, and new public access permissions cannot be created, thus closing the public access channel for data and ensuring data security. | 2024-04-11 | All |
December 2023
Feature Name | Overview | Release date | Supported regions | References |
OSS activation authentication | RAM users and RAM roles must be granted the | 2023-12-25 | All | |
Authentication for purchasing OSS resource plans | RAM users and RAM roles must be granted the | 2023-12-20 | All |
October 2023
Feature Name | Overview | Release date | Supported regions | References |
Bandwidth increase in China (Shanghai) and China (Shenzhen) regions | The total public and internal download bandwidth in the China (Shanghai) and China (Shenzhen) regions is increased from 10 Gbps to 100 Gbps. | 2023-10-31 | China (Shanghai), China (Shenzhen) | |
Object FC access point | If you want OSS to automatically trigger Function Compute when a GetObject request is sent and return the transformation result of the retrieved data to the application, you need to send the request through an object FC access point. Through an object FC access point, you can seamlessly integrate the ability to modify or filter file content while maintaining object storage semantics and without modifying the client. | 2023-10-31 | China (Hangzhou), China (Shanghai), China (Qingdao), China (Beijing), China (Zhangjiakou), China (Hohhot), China (Shenzhen), China (Chengdu), China (Hong Kong), US (Silicon Valley), US (Virginia), Japan (Tokyo), South Korea (Seoul), Singapore, Malaysia (Kuala Lumpur), Indonesia (Jakarta), Germany (Frankfurt), UK (London) | |
Cross-account replication | Cross-account replication refers to the automatic and asynchronous (near-real-time) replication of operations such as creating, updating, and deleting objects from a source bucket in one account's region to a destination bucket in another account's same or different region. | 2023-10-17 | All |
September 2023
Feature Name | Overview | Release date | Supported regions | References |
Set the TLS version | Communication between client applications and OSS is encrypted using transport layer security (TLS). TLS is a standard encryption protocol that ensures privacy and data integrity between clients and servers communicating over the Internet. You can set the TLS version on the OSS server-side. After setting the TLS version, clients can only use the corresponding TLS version to send and receive requests with OSS, meeting the security requirements of the communication link. | 2023-09-19 | All |
June 2023
Feature name | Overview | Release date | Supported regions | References |
Real-time access of Archive objects | Object Storage Service (OSS) supports enabling real-time access of Archive objects. You can directly access files of the Archive Storage class without first restoring them. Compared to reading Archive Storage files after restoration, real-time access has a shorter data retrieval time but higher costs. Real-time access is suitable for scenarios that require real-time reading of extremely infrequently accessed data. | 2023-06-30 | All | |
Storage redundancy type conversion | Object Storage Service (OSS) supports converting the storage redundancy type of a bucket from locally redundant storage to zone-redundant storage, thereby providing resistance to zone-level failures. | 2023-06-28 | China (Hangzhou), China (Shanghai), China (Beijing), China (Zhangjiakou), China (Ulanqab), China (Shenzhen), China (Hong Kong), Japan (Tokyo), Singapore, Indonesia (Jakarta), and Germany (Frankfurt). |
May 2023
Feature Name | Overview | Release date | Supported regions | References |
Deep Cold Archive | Provides a highly durable object storage service at a lower cost than Cold Archive. It has a minimum billable size (64 KB) and a minimum storage duration (180 days). Data must be restored before access, and the restoration time depends on the data size and the chosen restoration mode. Data retrieval fees and retrieval request fees are incurred. It is suitable for extremely cold data that needs to be stored for a very long time, such as long-term retention of raw data in big data and artificial intelligence fields, long-term retention of media data, regulatory and compliance archiving, and tape replacement scenarios. Deep Cold Archive only supports the locally redundant storage method. | 2023-05-07 | China (Hangzhou), China (Shanghai), China (Beijing), China (Zhangjiakou), China (Ulanqab), China (Shenzhen), Singapore |
March 2023
Feature Name | Overview | Release date | Supported regions | References |
Bandwidth increase in the China (Beijing) region | The total public and internal download bandwidth in the China (Beijing) region is increased from 10 Gbps to 100 Gbps. | 2023-03-12 | China (Beijing) |
February 2023
Feature Name | Overview | Release date | Supported regions | References |
Signature tool | The OSS console provides the following signature tools.
| 2023-02-03 | All |
December 2022
Feature Name | Overview | Release date | Supported regions | References |
Resource group | A resource group is a resource-based permission management method. You can group buckets based on different business needs and set different access permissions for different resource groups to achieve permission management within the scope of the resource group. | 2022-12-16 | China (Hangzhou), China (Shanghai), China (Qingdao), China (Beijing), China (Zhangjiakou), China (Hohhot), China (Ulanqab), China (Shenzhen), China (Heyuan), China (Guangzhou), China (Chengdu), China (Hong Kong), US (Silicon Valley), US (Virginia), Japan (Tokyo), Singapore, Malaysia (Kuala Lumpur), Indonesia (Jakarta), Germany (Frankfurt), UK (London), UAE (Dubai) | |
Replication time control (RTC) | OSS replication time control (RTC) can meet your compliance requirements or business needs when replicating data across regions. After RTC is enabled, OSS replicates most of the objects you upload to OSS within a few seconds and 99.99% of the objects within 10 minutes. In addition, the RTC feature provides near-real-time monitoring of data replication, allowing you to view various metrics of the replication task. | 2022-12-01 |
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October 2022
Feature Name | Overview | Release date | Supported regions | References |
Policy adjustment for response headers when accessing all types of files in OSS | Starting from October 9, 2022, for buckets created by users who activated OSS service after this date, the response header will automatically include | 2022-10-09 | All | How do I configure the preview behavior when accessing OSS files? |
August 2022
Feature Name | Overview | Release date | Supported regions | References |
Tiered Storage of Hot and Cold Data for OSS-HDFS service | Some data stored in OSS-HDFS is not frequently accessed, but it still needs to be retained for compliance or archival purposes. To address this, the OSS-HDFS service supports tiered storage of hot and cold data. Frequently accessed data is stored as Standard, while less frequently accessed data is stored as Archive, thereby reducing total storage costs. | 2022-08-16 | China (Hangzhou), China (Shanghai), China (Shenzhen), China (Beijing), China (Zhangjiakou), and Singapore |
March 2022
Feature name | Overview | Release date | Supported regions | References |
Data Indexing - Scalar Retrieval | Scalar retrieval is an object metadata indexing capability provided by OSS. You can use the metadata of objects to customize indexing conditions to quickly obtain a list of objects, helping you better manage and understand your data structure for subsequent querying, statistics, and management of objects. | 2022-03-21 | China (Hangzhou), China (Shanghai), China (Qingdao), China (Beijing), China (Zhangjiakou), China (Shenzhen), China (Guangzhou), China (Chengdu), China (Ulanqab), China (Hong Kong), Singapore, Indonesia (Jakarta), Germany (Frankfurt), US (Virginia), US (Silicon Valley), UK (London) |
January 2022
Feature Name | Overview | Release date | Supported regions | References |
OSS-HDFS service | The OSS-HDFS service is compatible with HDFS interfaces and supports directory-level operations, better adapting to the open source ecosystem. | 2022-01-27 | China (Hangzhou), China (Shanghai), China (Qingdao), China (Beijing), China (Ulanqab), China (Shenzhen), China (Guangzhou), China (Zhangjiakou), China (Hong Kong), Japan (Tokyo), Singapore, Germany (Frankfurt), US (Silicon Valley), US (Virginia), Indonesia (Jakarta), Thailand (Bangkok) |
October 2021
Feature Name | Overview | Release date | Supported regions | References |
Lifecycle rule based on last access time | You can use a lifecycle rule based on the Last Access Time policy to automatically monitor data access patterns and identify cold data. You can then convert the identified cold data to a different storage class to achieve tiered storage of hot and cold data, ultimately reducing storage costs. | 2021-10-19 | All |
September 2021
Feature Name | Overview | Release date | Supported regions | References |
Same-region replication (SRR) | Same-region replication (SRR) refers to the automatic and asynchronous (near-real-time) replication of operations such as creating, updating, and deleting objects from a source bucket to a destination bucket in the same region. | 2021-09-06 | All |
August 2021
Feature Name | Overview | Release date | Supported regions | References |
OSS DDoS protection supports protecting custom domain names | If you want to access a bucket through a custom domain name when it is under attack, add the custom domain name to be protected in the OSS DDoS protection console. The maximum number of custom domain names that can be protected for each bucket is five. | 2021-08-13 | China (Hangzhou), China (Shanghai), China (Qingdao), China (Beijing), China (Shenzhen), China (Hong Kong) | |
Cold Archive | A new Cold Archive storage class is added, suitable for extremely cold data that needs to be stored for a very long time. The minimum storage unit is 64 KB, the minimum storage period is 180 days, and the storage cost is lower than Archive Storage. | 2021-08-01 | The single-zone redundancy storage mechanism is implemented for Cold Archive objects in the following regions: China (Hangzhou), China (Shanghai), China (Qingdao), China (Beijing), China (Zhangjiakou), China (Hohhot), China (Ulanqab), China (Shenzhen), China (Heyuan), China (Guangzhou), China (Chengdu), China (Hong Kong), US (Silicon Valley), US (Virginia), Japan (Tokyo), Singapore, Malaysia (Kuala Lumpur), Indonesia (Jakarta), Philippines (Manila), Germany (Frankfurt), UK (London), and UAE (Dubai). |
July 2021
Feature Name | Overview | Release date | Supported regions | References |
Support for adding tags to different versions of an object | After enabling versioning for a bucket, you can add tags to different versions of objects within the bucket. | 2021-07-15 | All |
April 2021
Feature Name | Overview | Release date | Supported regions | References |
Bucket Policy | Supports configuring bucket policies through a graphical interface and policy syntax. | 2021-04-16 | All | Grant users access to specified resources through a bucket policy |
Data synchronization between different buckets in multiple regions | Cross-region replication lets you replicate objects from one region to several other specified regions in near-real-time, not only achieving multi-region disaster recovery but also improving access real-time performance in each region. | 2021-04-23 | All |
January 2021
Feature Name | Overview | Release date | Supported regions | References |
Batch export of URL list | You can batch export multiple file URLs to share with third parties for download or preview. | 2021-01-18 | All | |
OSS DDoS protection | You can use OSS DDoS protection to protect your bucket, ensuring it can provide normal access services even when under volumetric attacks. | 2021-01-07 | China (Hangzhou), China (Shanghai), China (Qingdao), China (Beijing), China (Shenzhen), China (Hong Kong) |
December 2020
Feature | Overview | Release date | Supported regions | References |
Mirroring-based back-to-origin adds support for fetching from private buckets | When the source file for back-to-origin is a private file in another bucket under the same account, you can correctly obtain the source file using the feature of fetching from a private bucket. | 2020-12-17 | All | |
ZIP package decompression adds a feature to retain the compressed file name as a path directory | You can decompress a ZIP file into a subdirectory within the target directory to distinguish between different compressed files. | 2020-12-01 | China (Hangzhou), China (Shanghai), China (Qingdao), China (Beijing), China (Zhangjiakou), China (Hohhot), China (Shenzhen), China (Chengdu), China (Hong Kong), Singapore, Malaysia (Kuala Lumpur), Indonesia (Jakarta), Japan (Tokyo), Germany (Frankfurt), UK (London), US (Virginia), US (Silicon Valley) |
November 2020
Feature Name | Overview | Release date | Supported regions | References |
Service availability change for Standard storage class | The service availability for the Standard storage class has been changed as follows:
| 2020-11-12 | All | |
Cross-region replication supports copying encrypted objects | Cross-region replication supports copying objects encrypted with KMS-managed keys (SSE-KMS) and OSS-managed keys (SSE-OSS). | 2020-11-01 | All |
September 2020
Feature Name | Overview | Release date | Supported regions | References |
Console adds a task list for deleting folders | When deleting a folder, you can view the task progress in the task list and interrupt the ongoing deletion task at any time. | 2020-09-28 | All |
August 2020
Feature Name | Overview | Release date | Supported regions | References |
Cross-region replication supports object tags | When versioning is enabled for both the source and destination buckets, and the "Data Synchronization Policy" is set to "Sync on Add/Modify", OSS supports synchronizing objects with specified tags to the destination bucket. | 2020-08-28 | Source region is China (Hangzhou), destination region is any region except China (Hangzhou) | |
Cross-region replication supports transfer acceleration | When performing cross-region replication, you can use the transfer acceleration feature to speed up file transfer. | 2020-08-28 | When performing cross-region replication between the Chinese mainland and regions outside the Chinese mainland |
July 2020
Feature Name | Overview | Release date | Supported regions | References |
Transfer acceleration adds an accelerated domain name for regions outside the Chinese mainland | The transfer acceleration feature adds an accelerated domain name for regions outside the Chinese mainland: | 2020-07-28 | All regions except the Chinese mainland | |
OSS console adds features to restore and batch delete historical versions | After enabling versioning, the OSS console supports restoring a specified historical version of an object and batch deleting historical versions. | 2020-07-24 | All | |
Mirroring-based back-to-origin adds pass-through of forward slashes (/) to the origin server | When the filename of the requested origin file starts with a forward slash (/), the forward slash is passed through to the origin server. | 2020-07-20 | US (Silicon Valley), US (Virginia), China (Hangzhou) |
June 2020
Feature Name | Overview | Release date | Supported regions | References |
Auto CDN cache update supports refreshing for specified operations | Auto CDN cache update can specify the operation that triggers a cache refresh. When an object is updated due to a specified operation, such as PutObject or DeleteObject, the CDN cache is automatically refreshed. | 2020-06-05 | All |
May 2020
Feature Name | Overview | Release date | Supported regions | References |
Mirroring-based back-to-origin adds MD5 validation and replace prefix operations |
| 2020-05-22 | All | |
OSS console supports retaining folders during drag-and-drop uploads | When you drag and drop to upload through the OSS console, all subfolders of the folder are retained. | 2020-05-22 | All |
April 2020
Feature Name | Overview | Release date | Supported regions | References |
Bucket manifest | You can use the manifest feature of Object Storage Service (OSS) to list specified objects in a bucket to obtain attribute information such as the number of objects, size, storage class, and encryption status. Compared to the ListObject interface, it is recommended to prioritize using the manifest feature in scenarios with a massive number of objects. | 2020-04-30 | All | |
Object Storage Service (OSS) service availability SLA improvement | The SLA for OSS Standard-LRS is improved from 99.9% to 99.99%, and the SLA for Standard-ZRS is improved from 99.95% to 99.995%. | 2020-04-30 | All | |
Cold Archive | A new Cold Archive storage class is added, suitable for extremely cold data that needs to be stored for a very long time. The minimum storage unit is 64 KB, the minimum storage period is 180 days, and the storage cost is lower than Archive Storage. | 2020-04-22 (Invitational Preview) | China (Hangzhou), China (Shanghai), China (Qingdao), China (Beijing), China (Zhangjiakou), China (Hohhot), China (Ulanqab), China (Shenzhen), China (Heyuan), China (Guangzhou), China (Chengdu), China (Hong Kong), US (Silicon Valley), US (Virginia), Japan (Tokyo), Singapore, Malaysia (Kuala Lumpur), Indonesia (Jakarta), Philippines (Manila), Germany (Frankfurt), UK (London), UAE (Dubai) |
March 2020
Feature name | Overview | Release date | Supported regions | References |
Bucket Policy supports authorizing temporary users | Bucket Policy supports granting access authorization to temporary users. | 2020-03-13 | All | Grant users access to specified resources through a bucket policy |
December 2019
Feature Name | Overview | Release date | Supported regions | References |
Bucket creation limit increased to 100 | The total number of buckets that can be created by the same Alibaba Cloud account in the same region is increased to 100. | 2019-12-13 | All |
November 2019
Feature Name | Overview | Release date | Supported regions | References |
Versioning | After enabling the versioning feature for a bucket, data overwrite and delete operations will be saved as historical versions. If you accidentally overwrite or delete an object, you can restore the object stored in the bucket to any historical version. | 2019-11-15 | All |
September 2019
Feature Name | Overview | Release date | Supported regions | References |
Image preview feature change | For buckets created after September 23, 2019, when accessing image files from a browser using an OSS domain name, they will be downloaded as attachments. If you want to preview the image directly, you need to use a custom domain name to access OSS. Buckets created before 00:00 on September 23, 2019, are not affected. | 2019-09-23 | All | |
Transfer acceleration | OSS utilizes globally distributed cloud data centers to route user access to your bucket from anywhere in the world to the nearest access point through intelligent routing. It uses optimized networks and protocols to access the data center where your bucket is located. The transfer acceleration feature allows your customers to access your OSS more quickly, improving customer experience. | 2019-09-10 | All | |
Zone-redundant storage | OSS uses a multi-zone (AZ) data redundancy mechanism, storing user data redundantly across multiple zones within the same region. If one zone becomes unavailable, data access is still guaranteed. OSS zone-redundant storage provides 99.9999999999% (twelve 9s) data design reliability and 99.995% service availability. | 2019-09-09 (Generally Available) | China (Hangzhou), China (Shanghai), China (Beijing), China (Zhangjiakou), China (Ulanqab), China (Shenzhen), China (Hong Kong), Japan (Tokyo), Singapore, Indonesia (Jakarta), Malaysia (Kuala Lumpur), Germany (Frankfurt) |
August 2019
Feature Name | Overview | Release date | Supported regions | References |
Bucket tagging | You can use the bucket tagging feature to classify and manage buckets, such as listing buckets with specified tags or setting access permissions for buckets with specified tags. | 2019-08-29 | All | |
Object tagging | OSS supports using object tagging to classify stored objects. You can set lifecycle rules, access permissions, and more for objects with the same tag. | 2019-08-29 | All | |
Single-connection bandwidth throttling | OSS supports traffic shaping when uploading, downloading, and copying files to ensure the network bandwidth of your other applications. | 2019-08-17 | All |
June 2019
Feature name | Overview | Release date | Supported regions | References |
Server-side encryption | OSS supports encrypting uploaded data on the server side (Server-Side Encryption). When data is uploaded, OSS encrypts the received user data and then persists the encrypted data. When data is downloaded, OSS automatically decrypts the stored encrypted data and returns the original data to the user, and declares in the returned HTTP request header that the data has been server-side encrypted. | 2019-06-18 | All |
January 2019
Feature Name | Overview | Release date | Supported regions | References |
Bucket Policy | A bucket policy is a resource-based authorization policy. Bucket policies support direct graphical configuration in the console, and bucket owners can directly grant access authorization. | 2019-01-21 | All | Grant users access to specified resources through a bucket policy |
December 2018
Feature Name | Overview | Release date | Supported regions | References |
Real-time log query | The real-time log query feature combines OSS with Simple Log Service, allowing you to directly query OSS access logs in the OSS console. This helps you complete tasks such as OSS access operation audits, access statistics, abnormal event tracing, and problem locating. | 2018-12-26 | All |
November 2018
Feature Name | Overview | Release date | Supported regions | References |
Specify or modify object storage class | When uploading an object, you can specify it as Standard, Infrequent Access, or Archive storage class as needed, and it takes effect in real time. You can convert the storage class of an object between Standard, Infrequent Access, and Archive at any time through the CopyObject operation. The conversion time for storage classes is improved from day-level to second-level. | 2018-11-10 | All | |
Terraform | OSS releases a Terraform Module, which allows for versioned management of infrastructure resources. You can create buckets, manage objects, and more through code. | 2018-11-07 | All |
October 2018
Feature Name | Overview | Release date | Supported regions | References |
KMS-based server-side encryption | You can use OSS server-side encryption with KMS to encrypt data at the object level. | 2018-10-20 | All |
September 2018
Feature Name | Overview | Release date | Supported regions | References |
OSS Select | OSS Select lets you use simple SQL statements to select the required data from a single file in OSS, thereby reducing the amount of data transferred from OSS and improving the efficiency of data retrieval. | 2018-09-28 | All | |
Retention policy | OSS supports setting a bucket-level retention policy, allowing you to save and use data in a non-deletable, non-tamperable manner. | 2018-09-28 | All | |
Zone-redundant Storage | OSS uses a multi-zone (AZ) data redundancy mechanism, storing user data redundantly across multiple zones within the same region. If one zone becomes unavailable, data access is still guaranteed. OSS zone-redundant storage provides 99.9999999999% (twelve 9s) data design reliability and 99.995% service design availability. | 2018-09-28 (Public Preview) | China (Shenzhen), China (Beijing), China (Hangzhou), China (Shanghai), Singapore | |
Pay-by-requester | In the pay-by-requester mode, the requester pays the traffic and request fees generated when reading data from a bucket, while the bucket owner only pays the storage fees. | 2018-09-27 | All |
August 2018
Feature Name | Overview | Release date | Supported regions | References |
Encryption and decryption using KMS-managed keys (SSE-KMS) | OSS server-side KMS encryption lets you specify a CMK ID to achieve the BYOK feature. | 2018-08-14 | All |
June 2018
Feature | Overview | Release date | Supported regions | References |
Python SDK supports client-based encryption | Use the client-based encryption SDK to encrypt data locally and upload the encrypted data to OSS. In this scenario, you need to manage the encryption process and the encryption keys. | 2018-06-05 | All |
May 2018
Feature Name | Overview | Release date | Supported regions | References |
OSS and DataLakeAnalytics deep integration | You can directly perform serverless interactive query analysis on data in OSS from the DataLakeAnalytics management console. | 2018-05-31 | All |
March 2018
Feature Name | Overview | Release date | Supported regions | References |
OSS Browser.js SDK and Node.js SDK support resumable upload | Resumable upload divides the file to be uploaded into several parts and uploads them separately. After all parts are uploaded, they are combined into a complete file to complete the entire file upload. | 2018-03-07 | All | |
Certificate hosting | You can host a custom domain name certificate on OSS and use HTTPS to access this custom domain name. | 2018-03-05 | All |
January 2018
Feature Name | Overview | Release date | Supported regions | References |
OSS iOS SDK supports SWIFT calls | Supports customers who develop mobile applications using the SWIFT framework to call the OSS iOS SDK. | 2018-01-18 | All |
December 2017
Feature Name | Overview | Release date | Supported regions | References |
iOS SDK 2.8 and Android SDK 2.5 support 64-bit cyclic redundancy check (CRC-64) data validation | After enabling CRC-64 validation, it checks whether the CRC-64 calculated from the actually received data is equal to the CRC-64 of the original data during file upload and download, thus ensuring the integrity of the transmitted data. | 2017-12-21 | All |
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October 2017
Feature Name | Overview | Release date | Supported regions | References |
ossimport | ossimport is a tool provided by Alibaba Cloud OSS for migrating data to OSS buckets. | 2017-10-23 | All |
September 2017
Feature Name | Overview | Release date | Supported regions | References |
Cross-region replication | Cross-region replication is the automatic, asynchronous replication of files between different OSS regions, synchronizing changes (create, overwrite, delete operations) in the source bucket to the destination bucket. | 2017-09-15 | Chinese mainland, US East, US West |
July 2017
Feature Name | Overview | Release date | Supported regions | References |
Archive Storage unit price reduction | The unit price for Archive Storage is reduced by 45%, and the minimum storage period is adjusted to 60 days. | 2017-07-21 | All | |
New console officially launched |
| 2017-07-01 | All |
April 2017
Feature Name | Overview | Release date | Supported regions | References |
Command line tool ossutil | ossutil is a command-line tool for managing OSS data, providing convenient, concise, and rich bucket and object management commands. It supports Windows, Linux, and Mac platforms. | 2017-04-26 | All | |
Bucket creation limit increased to 30 | The total number of buckets that can be created by the same Alibaba Cloud account in the same region cannot exceed 30. | 2017-04-24 | All |
December 2016
Feature Name | Overview | Release date | Supported regions | References |
iOS SDK 2.6.0 | iOS SDK 2.6.0 fully supports the HTTPS request access specification of the Apple App Store. | 2016-12-16 | All |
March 2016
Feature Name | Overview | Release date | Supported regions | References |
Manage fragments | Periodically clean up unnecessary fragments by setting lifecycle management rules. | 2016-03-10 | All |
January 2016
Feature Name | Overview | Release date | Supported regions | References |
Back-to-origin settings | Through back-to-origin settings, requests for data can be read from the origin in various ways to meet your needs for data hot migration, specific request redirection, and more. | 2016-01-14 | All |
November 2015
Feature Name | Overview | Release date | Supported regions | References |
Ruby SDK | Ruby SDK is officially launched. | 2015-11-26 | All | |
Image processing | The image processing feature is enabled by default for buckets. | 2015-11-10 | All |
July 2015
Feature Name | Overview | Release date | Supported regions | References |
Append upload | Use the AppendObject method in the OSS API to directly append content to an already uploaded Appendable Object type file. | 2015-07-18 | All | |
File upload supports callback to application server | OSS lets you build a mobile application data direct transfer service based on OSS and set up an upload callback. | 2015-07-08 | All |
April 2015
Feature Name | Overview | Release date | Supported regions | References |
OSS integrates with RAM service | OSS integrates with RAM (Resource Access Management), supporting master-sub account authorization and temporary authorization methods. | 2015-04-26 | All |
October 2014
Feature Name | Overview | Release date | Supported regions | References |
Lifecycle | You can set lifecycle rules through the PutBucketLifecycle interface of OSS to automatically delete expired objects and fragments, thereby saving storage costs. | 2014-10-20 | All |
March 2014
Feature | Overview | Release date | Supported regions | References |
Cross-origin resource sharing (CORS) | Cross-Origin Resource Sharing (CORS) is a standard cross-domain solution provided by HTML5. OSS supports the CORS standard to achieve cross-domain access. | 2014-03-15 | All |
February 2014
Feature Name | Overview | Release date | Supported regions | References |
Form upload | Form upload refers to using the PostObject request in the OSS API to complete the upload of an object. The uploaded object cannot exceed 5 GB. | 2014-02-12 | All |
November 2012
Feature name | Overview | Release date | Supported regions | References |
Server-side encryption | OSS supports encrypting uploaded data on the server side (Server-Side Encryption). When data is uploaded, OSS encrypts the received user data and then persists the encrypted data. When data is downloaded, OSS automatically decrypts the stored encrypted data and returns the original data to the user, and declares in the returned HTTP request header that the data has been server-side encrypted. | 2012-11-04 | China (Hangzhou), China (Shanghai), China (Qingdao), China (Beijing), China (Zhangjiakou), China (Hohhot), China (Ulanqab), China (Shenzhen), China (Heyuan), China (Guangzhou), China (Chengdu), China (Hong Kong), US (Silicon Valley), US (Virginia), Japan (Tokyo), South Korea (Seoul), Singapore, Malaysia (Kuala Lumpur), Indonesia (Jakarta), Philippines (Manila), Thailand (Bangkok), Germany (Frankfurt), UK (London), UAE (Dubai) |
September 2012
Feature | Overview | Release date | Supported regions | References |
CNAME | When you want to access these files through a custom domain name, you need to bind the custom domain name to the bucket where the files are located and add a CNAME record pointing to the bucket's public endpoint. | 2012-09-04 | All |
August 2012
Feature Name | Overview | Release date | Supported regions | References |
Log storage | Accessing OSS generates many access logs. The log storage feature can generate an object and write it to your specified bucket hourly, following a fixed naming convention, to store OSS access logs. | 2012-08-09 | All |
June 2012
Feature Name | Overview | Release date | Supported regions | References |
Static website hosting | You can configure your bucket into a static website hosting mode through the PutBucketWebsite interface of the OSS API and access the static website through the bucket domain name. | 2012-06-20 | All |
March 2012
Feature Name | Overview | Release date | Supported regions | References |
Multipart upload | The multipart upload and resumable upload features provided by OSS can divide the file to be uploaded into multiple data blocks (also known as Parts in OSS) to be uploaded separately. After all parts are uploaded, the OSS interface is called to combine these parts into an object to achieve the effect of resumable upload. | 2012-03-29 | All |
December 2011
Feature Name | Overview | Release date | Supported regions | References |
Copy files | Copying files refers to copying some files (objects) from one bucket to another without changing the file content. | 2011-12-16 | All | |
Hotlink protection | Hotlink protection refers to setting the Referer by calling the PutBucketReferer interface of the OSS API to prevent others from stealing OSS data. | 2011-12-16 | All | |
HTTP header | You can customize HTTP request policies by setting file HTTP headers, such as cache policies and forced file download policies. | 2011-12-16 | All |
October 2011
Feature Name | Overview | Release date | Supported regions | References |
Object Storage Service (OSS) officially launched | Alibaba Cloud Object Storage Service (OSS) is officially commercialized. | 2011-10-22 | All |