build(deps): bump solders from 0.27.1 to 0.28.0 in /clients/py

[dependabot]

Bumps solders from 0.27.1 to 0.28.0.

Release notes

Sourced from solders's releases.

v0.28.0

Changed

• Update litesvm to 0.13.1 and bump Solana deps as far as litesvm 0.13 allows: agave-feature-set/agave-precompiles, solana-compute-budget, solana-hash, solana-transaction-context to 4 and solana-system-interface to 3 (crates litesvm still pins to the v3 line, e.g. solana-message/solana-transaction/solana-account, stay there). 0.13.1 refreshes the simulated mainnet feature set to match the cluster as of 2026-06-30.
• Update to pyo3 0.29 and pythonize 0.29
• Update maturin to 1.14.1
• Raise the minimum supported Python version to 3.10 (was 3.8). Python 3.8 and 3.9 are end-of-life.
• Bump the (litesvm-independent) client crates to 4: solana-rpc-client-api, solana-rpc-client-types, solana-account-decoder-client-types, solana-transaction-status-client-types, and solana-reward-info to 5 (the version aligned with that set, not the newer 6.x)
• ComputeBudget constructor now takes simd_0268_active and simd_0339_active flags (was simd_0296_active) to match solana-compute-budget 4

Added

• commission_bps on Reward and RpcInflationReward, transaction_index on RpcConfirmedTransactionStatusWithSignature, and client_id on RpcContactInfo, following the upstream v4 client types
• Support for the getStakeMinimumDelegation RPC method (GetStakeMinimumDelegation request and GetStakeMinimumDelegationResp response)
• ComputeBudget: getters/setters for the new solana-compute-budget 4 cost fields (alt_bn128_g2_addition_cost, alt_bn128_g2_multiplication_cost, and the bls12_381_* set)
• transaction_index on EncodedConfirmedTransactionWithStatusMeta, following solana-transaction-status-client-types 4
• solders.system_program.create_account_allow_prefund (and decode_create_account_allow_prefund / CreateAccountAllowPrefundParams), wrapping the new solana-system-interface instruction
• LiteSVM.with_feature_set to apply a FeatureSet to the VM (the FeatureSet type was exposed but could not previously be applied)
• LiteSVM.with_mainnet_features / LiteSVM.mainnet_feature_set / LiteSVM.get_sigverify
• TransactionMetadata.fee and TransactionMetadata.pretty_logs
• FeatureSet.activate / FeatureSet.deactivate
• Rent.with_lamports_per_byte and the DEFAULT_LAMPORTS_PER_BYTE constant (the deprecated rent accessors are kept)
• EpochRewards.distribute
• StakeHistoryEntry.with_effective / with_effective_and_activating / with_deactivating
• LiteSVM.airdrop_pubkey, LiteSVM.with_feature_accounts, and LiteSVM.add_program_with_loader
• A getter for UiConfirmedBlock.num_reward_partitions (the constructor already accepted it but it could not be read back)
• solders.system_program.upgrade_nonce_account (and decode_upgrade_nonce_account / UpgradeNonceAccountParams)
• Message.is_instruction_account and Message.demote_program_id, wrapping the corresponding solana-message methods
• musllinux wheels for aarch64
• litesvm is now bundled in every wheel; previously the Windows, musllinux, and linux-aarch64 wheels were built without it
• Restored pickle and copy.deepcopy support: a __reduce__ method is now generated for all types using the common_methods family of macros (reconstructing via from_bytes(bytes(self))).
• copy.deepcopy support for RPC response types (via a clone-based __deepcopy__; these don't support pickle because their bincode round-trip is broken by skip_serializing_if).

Removed

• GetStakeActivation request: the getStakeActivation RPC method has been removed from Agave and is no longer served by validators
• 32-bit wheels (i686 and armv7): the Solana v4 solana-program-runtime no longer compiles on 32-bit targets

Fixed

• StakeHistoryEntry: the activating and deactivating setters wrote to the effective field instead of their own
• Rent declared module = "solders.account" but is exported from solders.rent, which broke pickling.
• EncodedConfirmedTransactionWithStatusMeta now serializes its bytes via CBOR instead of bincode. Its bytes()/from_bytes were broken (bincode can't represent the #[serde(flatten)] field), which also broke pickle and deepcopy for it.

Changelog

Sourced from solders's changelog.

[0.28.0] - 2026-07-01

Changed

• Update litesvm to 0.13.1 and bump Solana deps as far as litesvm 0.13 allows: agave-feature-set/agave-precompiles, solana-compute-budget, solana-hash, solana-transaction-context to 4 and solana-system-interface to 3 (crates litesvm still pins to the v3 line, e.g. solana-message/solana-transaction/solana-account, stay there). 0.13.1 refreshes the simulated mainnet feature set to match the cluster as of 2026-06-30.
• Update to pyo3 0.29 and pythonize 0.29
• Update maturin to 1.14.1
• Raise the minimum supported Python version to 3.10 (was 3.8). Python 3.8 and 3.9 are end-of-life.
• Bump the (litesvm-independent) client crates to 4: solana-rpc-client-api, solana-rpc-client-types, solana-account-decoder-client-types, solana-transaction-status-client-types, and solana-reward-info to 5 (the version aligned with that set, not the newer 6.x)
• ComputeBudget constructor now takes simd_0268_active and simd_0339_active flags (was simd_0296_active) to match solana-compute-budget 4

Added

• commission_bps on Reward and RpcInflationReward, transaction_index on RpcConfirmedTransactionStatusWithSignature, and client_id on RpcContactInfo, following the upstream v4 client types
• Support for the getStakeMinimumDelegation RPC method (GetStakeMinimumDelegation request and GetStakeMinimumDelegationResp response)
• ComputeBudget: getters/setters for the new solana-compute-budget 4 cost fields (alt_bn128_g2_addition_cost, alt_bn128_g2_multiplication_cost, and the bls12_381_* set)
• transaction_index on EncodedConfirmedTransactionWithStatusMeta, following solana-transaction-status-client-types 4
• solders.system_program.create_account_allow_prefund (and decode_create_account_allow_prefund / CreateAccountAllowPrefundParams), wrapping the new solana-system-interface instruction
• LiteSVM.with_feature_set to apply a FeatureSet to the VM (the FeatureSet type was exposed but could not previously be applied)
• LiteSVM.with_mainnet_features / LiteSVM.mainnet_feature_set / LiteSVM.get_sigverify
• TransactionMetadata.fee and TransactionMetadata.pretty_logs
• FeatureSet.activate / FeatureSet.deactivate
• Rent.with_lamports_per_byte and the DEFAULT_LAMPORTS_PER_BYTE constant (the deprecated rent accessors are kept)
• EpochRewards.distribute
• StakeHistoryEntry.with_effective / with_effective_and_activating / with_deactivating
• LiteSVM.airdrop_pubkey, LiteSVM.with_feature_accounts, and LiteSVM.add_program_with_loader
• A getter for UiConfirmedBlock.num_reward_partitions (the constructor already accepted it but it could not be read back)
• solders.system_program.upgrade_nonce_account (and decode_upgrade_nonce_account / UpgradeNonceAccountParams)
• Message.is_instruction_account and Message.demote_program_id, wrapping the corresponding solana-message methods
• musllinux wheels for aarch64
• litesvm is now bundled in every wheel; previously the Windows, musllinux, and linux-aarch64 wheels were built without it
• Restored pickle and copy.deepcopy support: a __reduce__ method is now generated for all types using the common_methods family of macros (reconstructing via from_bytes(bytes(self))).
• copy.deepcopy support for RPC response types (via a clone-based __deepcopy__; these don't support pickle because their bincode round-trip is broken by skip_serializing_if).

Removed

• GetStakeActivation request: the getStakeActivation RPC method has been removed from Agave and is no longer served by validators
• 32-bit wheels (i686 and armv7): the Solana v4 solana-program-runtime no longer compiles on 32-bit targets

Fixed

• StakeHistoryEntry: the activating and deactivating setters wrote to the effective field instead of their own
• Rent declared module = "solders.account" but is exported from solders.rent, which broke pickling.
• EncodedConfirmedTransactionWithStatusMeta now serializes its bytes via CBOR instead of bincode. Its bytes()/from_bytes were broken (bincode can't represent the #[serde(flatten)] field), which also broke pickle and deepcopy for it.

Commits

• 5f331f4 Merge pull request #179 from kevinheavey/prepare-release-0.28.0
• 3f9b932 Prepare 0.28.0 release
• ed62587 Merge pull request #178 from kevinheavey/bump-litesvm-0.13.1
• fde923c Update litesvm to 0.13.1
• b977f96 Merge pull request #175 from kevinheavey/bump-python-floor
• abd53ac Raise minimum Python to 3.10
• 01b43a4 Merge pull request #177 from kevinheavey/add-message-introspection
• a80b4d9 Add Message.is_instruction_account and demote_program_id
• 66a245c Merge pull request #174 from kevinheavey/upgrade-pyo3
• 495e0b8 Upgrade pyo3 and pythonize to 0.29
• Additional commits viewable in compare view

[dependabot]

OK, I won't notify you again about this release, but will get in touch when a new version is available. If you'd rather skip all updates until the next major or minor version, let me know by commenting @dependabot ignore this major version or @dependabot ignore this minor version. You can also ignore all major, minor, or patch releases for a dependency by adding an ignore condition with the desired update_types to your config file.

If you change your mind, just re-open this PR and I'll resolve any conflicts on it.