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refactor!: make "complete checkout" schemas consistent across actions/ transports

TC reviewReady for TC reviewReady for TC review

Status: Merged (completed).

Universal-Commerce-Protocol/ucpnumber 28

#28 In Universal-Commerce-Protocol/ucp;

· by lemonmade was closed on Jan 16, 2026

refactor!: organize payments, services, and capabilities under same hierarchy

TC reviewReady for TC reviewReady for TC review

Status: Merged (completed).

Universal-Commerce-Protocol/ucpnumber 49

#49 In Universal-Commerce-Protocol/ucp;

· by raginpirate was closed on Jan 18, 2026

feat: add AP2 mandate as an extension to Checkout object

TC reviewReady for TC reviewReady for TC review

Status: Merged (completed).

Universal-Commerce-Protocol/ucpnumber 51

#51 In Universal-Commerce-Protocol/ucp;

· by lemonmade was closed on Jan 16, 2026

refactor!: restructure payment instruments

TC reviewReady for TC reviewReady for TC review

Status: Closed (abandoned).

Universal-Commerce-Protocol/ucpnumber 54

#54 In Universal-Commerce-Protocol/ucp;

· by raginpirate was closed on Jan 18, 2026

refactor!: Remove full_name fields across UCP APIs

TC reviewReady for TC reviewReady for TC review

Status: Merged (completed).

Universal-Commerce-Protocol/ucpnumber 58

#58 In Universal-Commerce-Protocol/ucp;

· by lemonmade was closed on Jan 16, 2026

feat: add context; make currency output-only

Status: Merged (completed).

Universal-Commerce-Protocol/ucpnumber 62

#62 In Universal-Commerce-Protocol/ucp;

· by igrigorik was closed on Jan 20, 2026

feat(ecp): per checkout transport configs; ECP support + delegation confirmation

TC reviewReady for TC reviewReady for TC review

Status: Merged (completed).

Universal-Commerce-Protocol/ucpnumber 80

#80 In Universal-Commerce-Protocol/ucp;

· by igrigorik was closed on Jan 22, 2026

fix(mcp)!: deprecate _meta.ucp.profile in favor of standard metadata

TC reviewReady for TC reviewReady for TC review

Status: Merged (completed).

Universal-Commerce-Protocol/ucpnumber 89

#89 In Universal-Commerce-Protocol/ucp;

· by igrigorik was closed on Jan 22, 2026

docs: fix documentation inconsistencies for capability / service examples

TC reviewReady for TC reviewReady for TC review

Status: Merged (completed).

Universal-Commerce-Protocol/ucpnumber 85

#85 In Universal-Commerce-Protocol/ucp;

· by raginpirate was closed on Jan 20, 2026

feat: Add ec.totals.change to Embedded Checkout Protocol

enhancementNew feature or requestNew feature or request

TC reviewReady for TC reviewReady for TC review

Status: Merged (completed).

Universal-Commerce-Protocol/ucpnumber 272

#272 In Universal-Commerce-Protocol/ucp;

· by lemonmade was closed on Mar 27, 2026