chore: release v0.6.0

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0.6.0 (2026-08-11)

Minor Changes

• Add T5 hardfork contract bindings, including refreshed ABIs, AccountKeychain helpers, TIP20 role/admin/reward controls, and stricter ABI response decoding. (by @mablr, #56)
• Add T6 contract bindings: TIP-1028 receive policies (TIP403Registry
• receive-policy helpers and ReceivePolicyGuard) and the TIP-1020
• SignatureVerifier precompile, along with their precompile addresses and
• refreshed ABIs. (by @stevencartavia, #60)
• Support the T6 (TIP-1049) KeyAuthorization wire format: encode and decode the
• new is_admin and account fields (plus the trailing witness field) using the
• trailing-canonical RLP layout. Adds admin-key validation, canonical-RLP decoding
• (KeyAuthorization.decode / SignedKeyAuthorization.decode), and to_json
• support. expiry=0 is now rejected — use None for "never expires". (by @stevencartavia, #59)
• Expose the T6 (TIP-1049) stateful keychain signature checks on the
• SignatureVerifier precompile binding: verify_keychain(account, hash, signature)
• and verify_keychain_admin(account, hash, signature). Bumped the vendored
• tempo-std ABI ref to pick up the verifyKeychain / verifyKeychainAdmin
• additions to ISignatureVerifier. (by @stevencartavia, #62)
• Add the StablecoinDEX.storage_credits(w3, user=...) view (TIP-1064) to query a
• maker's reusable order-storage credit balance on the Stablecoin DEX. (by @stevencartavia, #65)
• Add T7 StorageCredits precompile bindings (TIP-1060): the StorageCredits
• helper with set_mode/set_budget call builders and balance_of/mode_of/
• budget_of views, the StorageCreditMode enum, the STORAGE_CREDITS_ADDRESS
• precompile address, and the IStorageCredits ABI. (by @stevencartavia, #64)
• Exposed the Tempo transaction signing preimage via TempoTransaction.encode_for_signing(), allowing callers to access the exact byte sequence that is hashed for signing. Refactored internal _signing_hash_* methods into _encode_for_*_signing() helpers and added tests verifying the preimage matches the signing hash. (by @parvahuja, #69)

Patch Changes

• Document T7 changes: mark the TIP-20 reward builders distribute_reward and
• set_reward_recipient as deprecated (TIP-1075 — post-T7 no-ops). claim_rewards
• stays valid: it still checkpoints and settles pre-T7 lazy accruals through T7,
• and pays only already-settled balances from the T8 cleanup fork. Also note the
• dynamic base fee (TIP-1067) so max_fee_per_gas should come from a live estimate
• rather than a constant. (by @stevencartavia, #66)