# Blog

Get the latest news on how products at WunderGraph are built, technologies are used, and join the teams helping to build a better landscape of API integration.

## New feature **Cost Control for Your Supergraph**  
Cosmo Router now supports GraphQL Cost Control — estimate and enforce operation costs before any subgraph is touched.  
  
Yury Smolski  
Senior Software Engineer at WunderGraph  
March 26, 2026·5min read  
[Read more](/content/blog/cost-control-for-your-supergraph/index.html)

## New feature **ConnectRPC: Generate Typed SDKs from Your GraphQL API**  
Cosmo ConnectRPC compiles GraphQL operations into Protocol Buffers and serves them as gRPC, REST, and typed SDKs — no separate API layer required.  
  
Ahmet Soormally  
Principal Solutions Engineer at WunderGraph  
March 17, 2026·13min read  
[Read more](/content/blog/connectrpc-generate-typed-sdks-from-graphql/index.html)

## New feature **Three Handlers for Event Driven GraphQL Subscriptions**  
Cosmo Streams adds three router handlers to enable subscription authorization, initial state delivery, and per-subscriber event filtering without building custom infrastructure.  
  
Dominik Korittki  
Software Engineer at WunderGraph  
January 22, 2026·7min read  
[Read more](/content/blog/3-handlers-and-their-solutions-streams/index.html)

## New feature **Cosmo Streams: GraphQL Subscriptions Without the Hurdle**  
Cosmo Streams lets teams expose events through GraphQL subscriptions without the need to bring their own code. Events flow directly from the message broker through the Cosmo Router to clients.  
  
Dominik Korittki  
Software Engineer at WunderGraph  
December 21, 2025·6min read  
[Read more](/content/blog/streams-subscriptions-without-the-hurdle/index.html)

## New feature **TypeScript Plugin Support for Cosmo Connect**  
Cosmo Connect now supports TypeScript router plugins, allowing developers to write plugin logic in TypeScript and load it directly into the GraphQL federation router without deploying separate services.  
  
Milinda Dias  
Software Engineer at WunderGraph  
December 8, 2025·7min read  
[Read more](/content/blog/typescript-plugin-support-for-connect/index.html)

## New feature **Extending Subgraph Checks in Cosmo**  
Cosmo now supports subgraph check extensions, allowing teams to add custom validation rules to their subgraph checks. Cosmo runs its normal linting and schema checks, and your service adds any additional logic through a secure external endpoint.  
  
Wilson Rivera  
Engineer at WunderGraph  
December 3, 2025·5min read  
[Read more](/content/blog/subgraph-check-extensions-release/index.html)