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Title: v0.7.40: library, mcp hardening, pi code reviewer, gmail fix by waleedlatif1 · Pull Request #5761 · simstudioai/sim · GitHub

Open Graph Title: v0.7.40: library, mcp hardening, pi code reviewer, gmail fix by waleedlatif1 · Pull Request #5761 · simstudioai/sim

X Title: v0.7.40: library, mcp hardening, pi code reviewer, gmail fix by waleedlatif1 · Pull Request #5761 · simstudioai/sim

Description: Build, deploy, and orchestrate AI agents. Sim is the central intelligence layer for your AI workforce. - v0.7.40: library, mcp hardening, pi code reviewer, gmail fix by waleedlatif1 · Pull Request #5761 · simstudioai/sim

Open Graph Description: feat(library): add Best Relay.app Alternatives in 2026 post (feat(library): add Best Relay.app Alternatives in 2026 post #5755) fix(security): bound YAML alias expansion in file-parser (billion-lau...

X Description: feat(library): add Best Relay.app Alternatives in 2026 post (feat(library): add Best Relay.app Alternatives in 2026 post #5755) fix(security): bound YAML alias expansion in file-parser (billion-lau...

Opengraph URL: https://github.com/simstudioai/sim/pull/5761

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feat(library): add Best Relay.app Alternatives in 2026 post #5755https://github.com/simstudioai/sim/pull/5755
fix(security): bound YAML alias expansion in file-parser (billion-laughs DoS) #5756https://github.com/simstudioai/sim/pull/5756
feat(library): add BYOK multi-model AI agent builder post #5758https://github.com/simstudioai/sim/pull/5758
fix(mcp): auth-type handling, OAuth-pending UX, safe diagnostics + HTTP/2 #5757https://github.com/simstudioai/sim/pull/5757
fix(chat): run block execution state loader #5759https://github.com/simstudioai/sim/pull/5759
feat(mcp): reuse warm connections for tool execution and discovery #5760https://github.com/simstudioai/sim/pull/5760
fix(mcp): deliver OAuth callback result over BroadcastChannel so COOP can't strand the connect #5767https://github.com/simstudioai/sim/pull/5767
chore(tiktok): simplify to draft-only Content Posting #5703https://github.com/simstudioai/sim/pull/5703
improvement(mcp): trace OAuth state writes to diagnose invalid_state clobber #5772https://github.com/simstudioai/sim/pull/5772
fix(gmail-poller): resolve OAuth credential provider aliases #5770https://github.com/simstudioai/sim/pull/5770
fix(sidebar): reset drag state on dragend so edge drop zones can't strand over first/last rows #5774https://github.com/simstudioai/sim/pull/5774
improvement(blocks): name the integration in every suggested-action template title #5775https://github.com/simstudioai/sim/pull/5775
fix(mcp): bound OAuth discovery/DCR/token fetches with a timeout #5776https://github.com/simstudioai/sim/pull/5776
fix(ui): tuck notification stack below modal and dropdown menus #5779https://github.com/simstudioai/sim/pull/5779
feat(pi): add code review mode #5577https://github.com/simstudioai/sim/pull/5577
fix(library): show full unambiguous dates on featured and related cards #5783https://github.com/simstudioai/sim/pull/5783
improvement(ux): submit on Enter in chip modals and advance table rows #5781https://github.com/simstudioai/sim/pull/5781
feat(blocks): surface deprecated block and model warnings on canvas #5785https://github.com/simstudioai/sim/pull/5785
feat(zip): add support for zip files #5788https://github.com/simstudioai/sim/pull/5788
fix(mcp): bound and tear down one-shot OAuth fetches so auth can't hang #5789https://github.com/simstudioai/sim/pull/5789
fix(ux): balance question-card spacing and drop stray SMTP icon dot #5794https://github.com/simstudioai/sim/pull/5794
feat(managed-agents): add Claude Managed Agents workflow block #5778https://github.com/simstudioai/sim/pull/5778
chore(mcp): remove temporary HTTP diagnostics #5795https://github.com/simstudioai/sim/pull/5795
feat(library): add Best AI Agents for Sales and CRM Automation post #5796https://github.com/simstudioai/sim/pull/5796
fix(mcp): use HTTP/1.1 for the streamable-HTTP transport (drop allowH2) #5797https://github.com/simstudioai/sim/pull/5797
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%%{init: {'theme': 'neutral'}}%% sequenceDiagram participant Caller as Tool Executor / Discovery participant Service as McpService participant Pool as McpConnectionPool participant Client as McpClient participant Server as MCP Server Caller->>Service: executeTool() / discoverServerTools() Service->>Pool: acquire(key, serverId, create) alt Pool hit Pool->>Pool: tryReuse(entry): ping if stale Pool-->>Service: ConnectionLease (existing client) else Pool miss Pool->>Service: invoke create() Service->>Service: resolveConfigEnvVars + SSRF pin Service->>Client: new McpClient(pinnedFetch + H2) Client->>Server: connect() Server-->>Client: initialized Client-->>Service: connected McpClient Service-->>Pool: entry registered Pool-->>Service: ConnectionLease end Service->>Client: listTools() / callTool() Client->>Server: tools/list or tools/call Server-->>Client: result Client-->>Service: result alt Success Service->>Pool: "lease.release(poison=false)" Pool->>Pool: keep connection warm else Dead connection (400/401/404/reset) Service->>Pool: "lease.release(poison=true)" Pool->>Pool: "retire entry, closeIfIdle when borrowers=0" end Service-->>Caller: result / error Loading https://github.com/simstudioai/sim/pull/5761#gh-light-mode-only
%%{init: {'theme': 'base', 'themeVariables': {"darkMode": true, "background": "#0d1117", "primaryColor": "#21262d", "primaryTextColor": "#e6edf3", "primaryBorderColor": "#8b949e", "lineColor": "#8b949e", "textColor": "#e6edf3", "edgeLabelBackground": "#161b22", "actorBkg": "#21262d", "actorBorder": "#8b949e", "actorTextColor": "#e6edf3", "actorLineColor": "#8b949e", "signalColor": "#8b949e", "signalTextColor": "#e6edf3", "noteBkgColor": "#373320", "noteBorderColor": "#d4a72c", "noteTextColor": "#f0e6c0", "labelBoxBkgColor": "#21262d", "labelBoxBorderColor": "#8b949e", "labelTextColor": "#e6edf3", "loopTextColor": "#e6edf3", "activationBkgColor": "#30363d", "activationBorderColor": "#8b949e"}}}%% sequenceDiagram participant Caller as Tool Executor / Discovery participant Service as McpService participant Pool as McpConnectionPool participant Client as McpClient participant Server as MCP Server Caller->>Service: executeTool() / discoverServerTools() Service->>Pool: acquire(key, serverId, create) alt Pool hit Pool->>Pool: tryReuse(entry): ping if stale Pool-->>Service: ConnectionLease (existing client) else Pool miss Pool->>Service: invoke create() Service->>Service: resolveConfigEnvVars + SSRF pin Service->>Client: new McpClient(pinnedFetch + H2) Client->>Server: connect() Server-->>Client: initialized Client-->>Service: connected McpClient Service-->>Pool: entry registered Pool-->>Service: ConnectionLease end Service->>Client: listTools() / callTool() Client->>Server: tools/list or tools/call Server-->>Client: result Client-->>Service: result alt Success Service->>Pool: "lease.release(poison=false)" Pool->>Pool: keep connection warm else Dead connection (400/401/404/reset) Service->>Pool: "lease.release(poison=true)" Pool->>Pool: "retire entry, closeIfIdle when borrowers=0" end Service-->>Caller: result / error Loading https://github.com/simstudioai/sim/pull/5761#gh-dark-mode-only
"feat(mcp): reuse warm connections for to..."https://github.com/simstudioai/sim/commit/bd636d4be3b0cd7e38a56aca272ec5c2c4105da2
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…5794https://github.com/simstudioai/sim/pull/5794
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2f31981https://github.com/simstudioai/sim/pull/5761/commits/2f31981fbffd6da3fd47bde92ceaf4d47f8bd871
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chore(mcp): remove temporary HTTP diagnostics (https://github.com/simstudioai/sim/pull/5761/commits/1b2ee2614e1236f78187a4fc3bbdf85a6f356abc
#5795https://github.com/simstudioai/sim/pull/5795
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1b2ee26https://github.com/simstudioai/sim/pull/5761/commits/1b2ee2614e1236f78187a4fc3bbdf85a6f356abc
#5782https://github.com/simstudioai/sim/pull/5782
#5789https://github.com/simstudioai/sim/pull/5789
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#…https://github.com/simstudioai/sim/pull/5796
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…5796https://github.com/simstudioai/sim/pull/5796
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#2311https://github.com/simstudioai/sim/pull/2311
#3433https://github.com/simstudioai/sim/pull/3433
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https://github.com/BillLeoutsakosvl346
https://github.com/TheodoreSpeaks
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https://github.com/Sg312
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URLs of crawlers that visited me.