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Implement MCP 2026-07-28 (#2286)

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Co-authored-by: Matt <77928207+mattzcarey@users.noreply.github.com>
Co-authored-by: Konstantin Konstantinov <KKonstantinov@users.noreply.github.com>
Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
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Felix Weinberger 2026-06-26 14:01:10 +01:00 • committed by GitHub
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5
packages/server/CHANGELOG.md
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@ -81,7 +81,7 @@
- [#2275](https://github.com/modelcontextprotocol/typescript-sdk/pull/2275) [`1b53a41`](https://github.com/modelcontextprotocol/typescript-sdk/commit/1b53a415ea2c33aa11ac413fc9c2d68ccffde784) Thanks [@KKonstantinov](https://github.com/KKonstantinov)! - Add a configurable
`maxBufferSize` (default 10 MB) to the stdio transports. When a single message would push the read buffer past the limit, the transport now emits an `onerror` and closes instead of growing the buffer unbounded. Configure via `new StdioClientTransport({ ..., maxBufferSize })` or
`new StdioServerTransport(stdin, stdout, { maxBufferSize })`. The default is exported from `@modelcontextprotocol/core-internal` as `STDIO_DEFAULT_MAX_BUFFER_SIZE`.
`new StdioServerTransport(stdin, stdout, { maxBufferSize })`. The default is exported from `@modelcontextprotocol/client` / `@modelcontextprotocol/server` as `STDIO_DEFAULT_MAX_BUFFER_SIZE`.
- [#2088](https://github.com/modelcontextprotocol/typescript-sdk/pull/2088) [`16d13ab`](https://github.com/modelcontextprotocol/typescript-sdk/commit/16d13abf78b5dba5de73dfa284325b13d4219bb2) Thanks [@mattzcarey](https://github.com/mattzcarey)! - Bundle automatic JSON Schema
validator defaults in `@modelcontextprotocol/client` and `@modelcontextprotocol/server` runtime shims.
@ -158,7 +158,8 @@
For raw JSON Schema (e.g. TypeBox output), use the new `fromJsonSchema` adapter:
```typescript
import { fromJsonSchema, AjvJsonSchemaValidator } from '@modelcontextprotocol/core-internal';
import { fromJsonSchema } from '@modelcontextprotocol/server';
import { AjvJsonSchemaValidator } from '@modelcontextprotocol/server/validators/ajv';
server.registerTool(
'greet',