Notion

The Notion Developer Platform (3.5, May 13) opened infrastructure-level access: sync any data source, build server-side agent tools, and orchestrate external agents.¹

A full developer stack shipped in one release. Notion Workers let teams run custom server-side code inside the platform. A new CLI targets both developers and coding agents. The External Agents API (alpha) connects Claude, Codex, Decagon, and self-built agents into the workspace. Data sync (beta) pipelines any external source into Notion databases.²

Custom Agents gained governance, discovery, and planning. Teams have created over a million Custom Agents since the beta launch; admins can now set per-agent and workspace-level credit limits and restrict who can create them.³ A Custom Agent Directory (Library → Agents) consolidates browsing and creation.⁴ Plan Mode (May 7) lets the agent surface a step-by-step plan and ask clarifying questions before executing bulk changes.⁵

The JS SDK reached v5.22.0 with developer platform parity. Meeting notes queries gained attendee property typing (v5.21.0). Pages parented by workflow agents are now typed via agent_id parent.⁶ The insert_content endpoint accepted a position field (v5.22.0).⁷ Earlier releases added Views API endpoints, full comment CRUD (update/delete), and multi-value filters for select and status properties.

Everyday editing and navigation improved. Simple table cells now support merging (May 26).⁸ Rollups display budget totals as currency or percentage without formula workarounds.⁹ Hovering a breadcrumb item reveals sibling pages for faster navigation.¹⁰ The mobile home screen was reorganized into tabs covering home, chats, meetings, and inbox.¹¹