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Please reload this page . modelcontextprotocol / ruby-sdk Public * Notifications You must be signed in to change notification settings * Fork 133 * Star 906 * Code * Issues 1 * Pull requests 2 * Discussions * Actions * Projects * Security and quality 7 * Insights Additional navigation options * Code * Issues * Pull requests * Discussions * Actions * Projects * Security and quality * Insights Commit c6a5512 Browse files Browse the repository at this point in the history Browse files koic authored Merge pull request #547 from koic/release_1_5_1 Release 1.5.1 2 parents d0b22ef + 3b44ec4 commit c6a5512 Copy full SHA for c6a5512 2 file s changed + 14 - 1 Lines changed: 14 additions & 1 deletion File tree Expand file tree Collapse file tree Open diff view settings Filter options * CHANGELOG.md * lib/mcp * version.rb Expand file tree Collapse file tree Open diff view settings Collapse file ‎ CHANGELOG.md ‎ Copy file name to clipboard Expand all lines: CHANGELOG.md + 13 Lines changed: 13 additions & 0 deletions * Display the source diff * Display the rich diff Original file line number Diff line number Diff line change @@ -7,6 +7,19 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0 7 7 8 8 ## [ Unreleased ] 9 9 10 + ## [ 1.5.1 ] - 2026-09-09 11 + 12 + This release keeps the HTTP client working with json 3.0. That release accepts the options of ` JSON.parse ` 13 + as keywords only, and Faraday's JSON response middleware, through 2.14.3, passes them as a positional Hash, 14 + which Ruby 3 no longer converts, so every JSON body the client received failed as an internal error. 15 + The client now parses response bodies itself, the way it already handled streamed ones, and no longer 16 + registers the middleware. A malformed JSON body delivered whole by an adapter without streaming support 17 + now raises ` RequestHandlerError ` with ` error_type: :parse_error ` , as the streamed path already did. 18 + 19 + ### Fixed 20 + 21 + - Parse HTTP client response bodies without Faraday's JSON middleware, which json 3.0 breaks ( # 546 ) 22 + 10 23 ## [ 1.5.0 ] - 2026-09-05 11 24 12 25 This release makes the client answer a server's ` ping ` with the empty result the specification requires. Collapse file ‎ lib/mcp/version.rb ‎ Copy file name to clipboard + 1 - 1 Lines changed: 1 addition & 1 deletion Original file line number Diff line number Diff line change @@ -1,5 +1,5 @@ 1 1 # frozen_string_literal: true 2 2 3 3 module MCP 4 - VERSION = "1.5. 0 " 4 + VERSION = "1.5. 1 " 5 5 end 0 commit comments Comments 0  ( 0 ) Footer (c) 2026 GitHub, Inc. Footer navigation * Terms * Privacy * Security * Status * Community * Docs * Contact * Manage cookies * Do not share my personal information You can’t perform that action at this time.