Repo Watch · checked x402 releases, decoded
The x402 monorepo ships dozens of tags a month across Python, TypeScript core, and a per-chain package for every rail. Most of it is patch noise. We watch every tag, pull the changelog, and surface only what changes your build — breaking changes, security fixes, new chains, new payment flows. Same idea as Rail Pulse, pointed at the code instead of the ledger.
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- _is_valid_route_template now decodes a routeTemplate to a fixed point (up to a bounded pass budget) before running its traversal/scheme-injection checks, instead of a single unquote pass…
- Add Celo mainnet USDT and USAT (EIP-3009) as default assets for eip155:42220 so "$0.10 USDT" and "$0.10 USAT" resolve on Celo; bare "$0.10" still resolves to USDC.
- Accept CAP-71 V2 address credentials (SOROBAN_CREDENTIALS_ADDRESS_V2) in the facilitator's auth-entry validation and in gatherAuthEntrySignatureStatus. Stellar Protocol 28 (testnet 2026-08-27…
- Extend the Stellar facilitator's safety checks (unsafe_tx_or_op_source, facilitator_is_payer, facilitator_in_auth) to also cover feeBumpSigner, not just signingAddresses…
- Add an optional facilitator-delegated receiver-authorizer mode to SVM upto. The facilitator may advertise receiverAuthorizer in /supported; a server that omits receiverAuthorizerSigner delegates voucher signing…
- Replace node:crypto/Buffer usage in transactionMessageHash, getChannelDistributionHash, and payment-channel account discovery with @noble/hashes/sha256 and @solana/kit's base64 codec…
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- Added optional extension_responses on VerifyResponse and SettleResponse. The HTTP facilitator client populates it from the EXTENSION-RESPONSES header…
- Declare upfront payment flow support on Stellar exact server schemes. authorization remains the default; servers opt in per route via accepts.extra.paymentFlow.
- Declare upfront payment flow support on SVM exact server schemes. authorization remains the default; servers opt in per route via accepts.extra.paymentFlow.
- Verify SVM exact payments without a fee-payer signing round trip: required signatures are checked locally, simulateTransaction always runs with sigVerify off, and sendTransaction skips preflight…
- Route SVM upto facilitator RPC through toFacilitatorSvmSigner instead of scheme config: claim settlement simulates before skipPreflight send…
- Declare upfront payment flow support on TVM exact server schemes. authorization remains the default; servers opt in per route via accepts.extra.paymentFlow.
- Normalize default assets into DEFAULT_ASSETS + getDefaultAsset / findDefaultAsset…
- Normalize default assets into DEFAULT_ASSETS + getDefaultAsset / findDefaultAsset…
- Add ComputeBudget instructions to SVM upto transactions. The channel open prefixes SetComputeUnitLimit (default 90,000 CU…
- Split the SVM upto rent cleanup manager into two runners and make shutdown wait. Onchain discovery is no longer a branch inside a cleanup pass: enableDiscovery is replaced by a public discover() and a…
- Added a usage-based upto payment scheme for SVM, backed by an onchain payment-channels program. Resource servers can authorize up to a ceiling and settle the actual metered usage, with client/server/facilitator support…
- Added validation guard for TransferChecked
- Normalize default assets into DEFAULT_ASSETS + getDefaultAsset / findDefaultAsset…
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- Add operator-configurable transaction limits to ExactSvmSchemeOptions for the static verification path: maxPriorityFeeMicroLamports (was hardcoded to MAX_COMPUTE_UNIT_PRICE_MICROLAMPORTS)…
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- Added support for resource servers to include recent blockhash hints in SVM exact payment requirements…
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- Added the XRPL exact scheme reference implementation (TypeScript), following specs/schemes/exact/scheme_exact_xrpl.md…
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- Fix the default SVM smart wallet allowlist to use Swig's active program ID.
- Added simulation-based smart wallet verification (Path 2) to the SVM exact facilitator. When enableSmartWalletVerification is set, transactions that the static positional path rejects (smart-wallet-wrapped layouts…
- Fixed SVM exact facilitator deduplication to key on the transaction message hash rather than the full signed-transaction bytes…
- Fixed a security issue in the SVM exact facilitator where the compute unit price cap was silently bypassed…
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- Fixed a bug affecting USD prices with 7+ decimal places of precision (e.g. $0.0000001 or smaller).
- Add optional extra.memo support to SVM exact scheme. When a seller provides extra.memo in PaymentRequirements, the client uses it as the Memo instruction data instead of a random nonce…
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- Add in-memory SettlementCache to prevent duplicate SVM transaction settlement during on-chain confirmation window
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- Implements x402 2.0.0 for the TypeScript SDK.
How this works
Source is x402-foundation/x402, which publishes git tags rather than GitHub Releases. Every six hours we diff the tag list, fetch the matching CHANGELOG section for each package, and classify it. Patch-only tags are dropped. Entries with no published notes are still listed so you know the version exists. Raw feed at /repo-watch.json. Want the deeper read on a release? That’s what the blog and The Brief are for.