Release Notes: v0.9.0¶

Release Date: 2026-06-28

Summary¶

This release adds the OmniMemory DynamoDB provider, bringing serverless memory storage capabilities to the omni-aws ecosystem. The provider enables multi-tenant memory management with automatic scaling, TTL support, and efficient tenant isolation using DynamoDB's single-table design pattern.

Highlights¶

DynamoDB provider for omnimemory with full Provider interface implementation
Multi-tenant isolation using partition keys (tenant_id) and composite sort keys (subject_id#memory_id)
Automatic memory expiration via DynamoDB TTL
In-memory vector search with cosine similarity for semantic queries
Auto-create table option for simplified development workflows
DynamoDB Local support for local development without AWS costs

What's New¶

Features¶

OmniMemory DynamoDB Provider¶

The new DynamoDB provider implements the omnimemory.Provider interface for serverless, scalable memory storage:

import (
    "github.com/plexusone/omnimemory"
    "github.com/plexusone/omnimemory/core"
    _ "github.com/plexusone/omni-aws/omnimemory/dynamodb"
)

client, err := omnimemory.NewClient(core.ClientConfig{
    Providers: []core.ProviderConfig{
        {
            Name: core.ProviderNameAWSDynamoDB,
            Options: map[string]any{
                "table_name": "omnimemory",
                "region":     "us-east-1",
            },
        },
    },
})

Key capabilities:

Serverless Storage: Fully managed DynamoDB backend with pay-per-request billing
Multi-Tenant Isolation: Partition key based isolation ensures complete data separation between tenants
Automatic TTL: Built-in support for memory expiration using DynamoDB's TTL feature
Vector Search: In-memory cosine similarity search for semantic memory retrieval
Development Mode: Auto-create table option and DynamoDB Local support for development

Single-Table Design¶

Optimized table schema for efficient queries and tenant isolation:

Partition Key (pk): tenant_id - isolates data by tenant
Sort Key (sk): subject_id#memory_id - enables efficient subject-based queries
TTL Attribute: expires_at - automatic memory expiration

Additional attributes include memory type, scope, content, embeddings, metadata, and timestamps.

Local Development Support¶

DynamoDB Local integration for development without AWS:

client, err := omnimemory.NewClient(core.ClientConfig{
    Providers: []core.ProviderConfig{
        {
            Name: core.ProviderNameAWSDynamoDB,
            Options: map[string]any{
                "table_name":   "omnimemory",
                "endpoint":     "http://localhost:8000",
                "create_table": true,
            },
        },
    },
})

Documentation¶

Comprehensive documentation for the DynamoDB provider includes:

Installation and basic usage examples
Configuration options and table schema details
Local development setup with DynamoDB Local
IAM permissions (minimal and with auto-create)
All CRUD operations (Add, Get, Update, Delete, List, Search, Recall)
Multi-tenancy explanation and examples
Semantic search implementation details

See docs/omnimemory/index.md for complete documentation.

Installation¶

go get github.com/plexusone/omni-aws@v0.9.0

Migration Guide¶

From v0.8.2¶

No breaking changes. This is a purely additive release introducing the new OmniMemory package.

To use the DynamoDB provider:

Import the provider package (blank import for auto-registration):
```
_ "github.com/plexusone/omni-aws/omnimemory/dynamodb"
```

Configure the provider:

client, err := omnimemory.NewClient(core.ClientConfig{
    Providers: []core.ProviderConfig{
        {
            Name: core.ProviderNameAWSDynamoDB,
            Options: map[string]any{
                "table_name": "omnimemory",
                "region":     "us-east-1",
            },
        },
    },
})

Ensure IAM permissions for DynamoDB operations (see documentation for details)

Full Changelog¶

See CHANGELOG.md for the complete list of changes.