Mem0 Python SDK (v2.0.11)

Bug Fixes:

• Embeddings: Guard against an embed_batch count mismatch in the OpenAI and Azure OpenAI embedders (#5966)
• Memory: Re-raise LLM extraction failures instead of silently returning [] (#5878)
• Vector Stores: Normalize vectors for the cosine distance strategy in FAISS (#5960)

Security:

• Vector Stores: Validate OpenSearch filter values to prevent term query injection (#5986)
• Vector Stores: Validate value types and escape quotes in Azure AI Search OData filters (#5983)
• Vector Stores: Validate Databricks catalog/schema/table identifiers to prevent SQL injection (#5988)
• Graph: Escape Neptune filter values in openCypher queries to prevent injection (#5982)

Mem0 Pi Agent Plugin (v0.1.3)

New Features:

Guaranteed retrieval: Memories relevant to each prompt are now prefetched and injected as a <mem0-relevant-memories> block before the agent runs, so context no longer depends on the agent remembering to search. Context injection is on by default; set contextInjection: false to disable.

Improvements:

Multi-hop retrieval: The memory policy and the mem0_memory tool description now push proactive, multi-hop search -- several queries with different phrasings instead of stopping after one.

Clearer tool schema: The mem0_memory action and parameter descriptions (action, query, content, memory_id, scope) now explain each action and scope.

The latest SDK releases add first-class expiration controls to memory writes, updates, and reads, plus new TypeScript provider coverage for production deployments.

Python client updates

MemoryClient.update() and AsyncMemoryClient.update() now accept expiration_date, including None to clear an existing expiration.

TypeScript client updates

AddMemoryOptions, update(), and Memory now support expirationDate; search() and getAll() can include expired memories with showExpired.

New TypeScript LLM providers

MiniMaxLLM and LiteLLM are now available for OpenAI-compatible MiniMax and LiteLLM proxy deployments.

PGVector deployment flexibility

TypeScript PGVector config now supports connectionString and ssl, so apps can use a managed Postgres URI instead of separate connection fields.

See SDK & Tools for version details and PR links.

Mem0 Python SDK (v2.0.10)

New Features:

Client: Expose expiration_date on MemoryClient.update() and AsyncMemoryClient.update() — callers can now set or clear a memory's expiration date; None is preserved and forwarded to the API (#5874)

Bug Fixes:

Memory (OSS): Apply remove_code_blocks() to the LangChain path in async _create_procedural_memory so code fences are stripped consistently (#5711)

Rerankers: Score HuggingFace cross-encoder results with per-document sigmoid instead of set-relative min-max, preventing a single low-score document from collapsing all relevance scores to zero (#5715)

Core: Validate and trim entity IDs (user_id, agent_id, run_id) in delete_all() for both sync and async Memory (#5735)

Vector Stores: Use .get() for hash and created_at in the Redis insert() and update() paths so entity payloads that omit those fields no longer raise KeyError (#5709)

Memory: Fix scale-threshold notices not firing for Redis and search-engine backends by resolving col_info() signature differences and adding num_docs to the count-extraction lookup (#5687)

Vector Stores: Escape special characters in Valkey FT.SEARCH tag filter values to prevent wildcard and operator injection through tenant-isolation filters (#5750)

Mem0 Node SDK (v3.0.12)

New Features

• Client: Add expirationDate to AddMemoryOptions, update(), and the Memory interface; add showExpired to SearchMemoryOptions and GetAllMemoryOptions (#5874)
• LLMs: Add MiniMaxLLM provider backed by the OpenAI-compatible MiniMax API (api.minimax.io/v1, default model MiniMax-M2.7) (#5858)
• LLMs: Add LiteLLM provider for routing requests through a local or hosted LiteLLM proxy (#5830)
• Vector Stores: Add connectionString and ssl options to the PGVector config, allowing connection via URI instead of individual host/user/password/port fields (#5789)

Bug Fixes

• Memory (OSS): Validate and trim entity IDs (userId, agentId, runId) in deleteAll() via validateAndTrimEntityId (#5735)
• Vector Stores: Use nullish coalescing for hash and timestamps in the Redis insert() and update() paths so entity payloads that omit those fields no longer crash (#5860)

Security

• Dependencies: Bump undici to >=6.27.0 via pnpm override to remediate CVE-2026-12151 (#5861)

The shared Mem0 editor plugin is current through v0.2.11:

• Automatic context injection:
  File reads, bash errors, session resume prompts, and startup timelines can retrieve relevant memories automatically.

• Project and global scopes:
  Project-scoped memories remain the default, while global_search supports team-wide recall across users and app scopes.

• Coding categories:
  A 17-category coding taxonomy installs in the background and is cached per Mem0 account.

• Reliable capture:
  Auto-capture, compaction summaries, session summaries, and metadata defaults keep memories scoped and readable.

• Editor correctness:
  Telemetry now reports Claude Code, Cursor, Codex, and Antigravity separately with each editor’s real plugin version.

Antigravity support in the shared Mem0 editor plugin family is current through v0.1.3:

Self-contained plugin

Includes its own plugin manifest, MCP config, hooks, shared scripts, and skills.

AGENTS.md convention

Uses Antigravity’s contextFileName: "AGENTS.md" convention.

Lifecycle hooks

Wires session start, prompt recall, file-read context, memory-tool metadata enforcement, bash-error lookup, post-tool tracking, and stop summaries.

Shared memory layer

Reuses the Mem0 Platform MCP tools and the shared 16-skill command bundle.

Better automatic recall

v0.1.3 adds reranked injected context and clean files_touched metadata in session summaries.

Telemetry correctness

v0.1.2 reports Antigravity as antigravity with the plugin’s own version.

Mem0 Python SDK (v2.0.8)

New Features

• Embeddings: Add native embed_batch to five embedders — LM Studio, Together, HuggingFace, Vertex AI, and Google GenAI — for batched embedding requests (#5609)

Bug Fixes

• Core: Guard against malformed image_url entries in parse_vision_messages to prevent crashes (#5631)
• Core: Return attributed_to from get(), get_all(), and search() (#5629)
• Core: Fix reset() only dropping the history table and leaving stale messages behind (#5541)
• Core: Guard against an entity embed_batch count mismatch in the v3 add pipeline (#5604)
• Core: Fix an async delete_all race condition that corrupted the entity store's linked_memory_ids (#5553)
• LLMs: Skip the JSON response_format for Groq compound models that reject it (#5513)
• LLMs: Preserve reasoning fields during base-to-provider config conversion (#5638)
• LLMs: Pass the configured anthropic_base_url to the Anthropic client (#5626)
• LLMs: Stop the Azure provider from mutating and corrupting caller messages during content rewrite (#5731)
• LLMs & Embeddings: Repair HTTP proxy support for httpx>=0.28 and preserve proxies in LlmFactory (#5447)
• Embeddings: Forward embedding_dims to Titan V2 in the AWS Bedrock embedder (#5671)
• Rerankers: Log reranking failures instead of swallowing them silently (#5717)
• Rerankers: Clamp out-of-range LLM scores instead of mis-parsing them (#5635)
• Rerankers: Export all five rerankers from the package root (#5636)
• Vector Stores: Point the FastEmbed-missing warning at mem0ai[extras] (#5622)
• Vector Stores: Preserve empty Azure AI Search update values (#5524)
• Vector Stores: Add an auto_refresh option for OpenSearch Serverless compatibility (#3893)
• Vector Stores: Wrap a scalar vector_id in a list for Chroma delete() (#5703)
• Vector Stores: Wrap Chroma update() ids, embeddings, and metadatas in lists (#5757)
• Vector Stores: Wrap a scalar vector_id in a list for Milvus delete() (#5704)
• Vector Stores: Map all comparison operators in the Pinecone _create_filter() (#5707)
• Vector Stores: Return None instead of {} from Chroma _generate_where_clause for empty filters (#5713)
• Vector Stores: Return [[]] from the OpenSearch list() error path to honor the list() contract (#5727)
• Vector Stores: Return [[]] from the Pinecone list() error path instead of a dict (#5706)
• Vector Stores: Return [[]] for an uninitialized FAISS index to honor the list() contract (#5725)
• Vector Stores: Wrap the MongoDB list() return in an outer list to match the interface contract (#5729)
• Vector Stores: Deep-copy Redis DEFAULT_FIELDS so instances keep distinct dims (#5633)
• Vector Stores: Pass the required vectors arg in Vertex AI list() and similarity search (#5627)
• Vector Stores: Return None from Redis get() for missing IDs (#5625)
• Vector Stores: Drop a stray print in Weaviate list_cols (#5637)
• Graph: Keep distinct entities that share a substring prefix (#5630)
• Client: Check the HTTP status before parsing the ping response in _validate_api_key (#5639)
• Server: Fetch filtered dashboard memories beyond the default page (#5753)
• Server: Return 404/400 instead of 502 for not-found and invalid input (#5634)
• Server: Return 404 instead of 500 for a malformed API key id on revoke (#5640)
• Server: Use 127.0.0.1 in the dashboard healthcheck to avoid IPv6 localhost resolution (#5612)

Improvements

• Vector Stores: Batch BM25 sparse encoding in Qdrant insert (#5592)

Security

• Vector Stores: Sanitize Milvus and Baidu filter values to prevent expression injection (#5746)
• Vector Stores: Reject dict filter values in MongoDB to prevent NoSQL operator injection (#5748)

Mem0 Node SDK (v3.0.10)

• Memory (OSS): Guard against malformed image_url entries in parseVisionMessages to prevent crashes (#5631)
• Memory (OSS): Return attributedTo from get(), search(), and getAll() (#5675)
• Memory (OSS): Preserve message roles in the extraction input so assistant facts aren't attributed to the user (#5643)
• Memory (OSS): Reject empty or blank messages in Memory.add() to prevent hallucinated memories (#5545)
• Memory (OSS): Check message.role instead of content when detecting system messages (#3921)
• LLMs: Honor the configured baseURL in AnthropicLLM (#5740)
• Client: Preserve customCategories names through key conversion (#5741)
• Client: Prevent hallucinated memories on an empty messages payload (#5613)
• Client: Preserve user metadata keys across the case-conversion round-trip (#5515)

Security:

• Dependencies: Upgrade form-data to >=4.0.6 across pnpm workspaces to remediate CVE-2026-12143 (#5618)