Module solana_sdk::feature_set

Collection of all runtime features.

Steps to add a new feature are outlined below. Note that these steps only cover the process of getting a feature into the core Solana code.

• For features that are unambiguously good (ie bug fixes), these steps are sufficient.
• For features that should go up for community vote (ie fee structure changes), more information on the additional steps to follow can be found at: https://spl.solana.com/feature-proposal#feature-proposal-life-cycle

1. Generate a new keypair with solana-keygen new --outfile feature.json --no-passphrase
   • Keypairs should be held by core contributors only. If you’re a non-core contirbutor going through these steps, the PR process will facilitate a keypair holder being picked. That person will generate the keypair, provide pubkey for PR, and ultimately enable the feature.
2. Add a public module for the feature, specifying keypair pubkey as the id with solana_sdk::declare_id!() within the module. Additionally, add an entry to FEATURE_NAMES map.
3. Add desired logic to check for and switch on feature availability.

For more information on how features are picked up, see comments for Feature.

Modules

add_compute_budget_program

add_get_processed_sibling_instruction_syscall

bank_tranaction_count_fix

blake3_syscall_enabled

cap_accounts_data_len

check_init_vote_data

dedupe_config_program_signers

demote_program_write_locks

deprecate_rewards_sysvar

deterministic_shred_seed_enabled

disable_bpf_deprecated_load_instructions

disable_bpf_unresolved_symbols_at_runtime

disable_fee_calculator

disable_fees_sysvar

do_support_realloc

ed25519_program_enabled

evict_invalid_stakes_cache_entries

filter_stake_delegation_accounts

fixed_memcpy_nonoverlapping_check

full_inflation

gate_large_block

instructions_sysvar_owned_by_sysvar

leave_nonce_on_success

libsecp256k1_0_5_upgrade_enabled

libsecp256k1_fail_on_bad_count

max_tx_account_locks

merge_nonce_error_into_system_error

neon_evm_compute_budget

no_overflow_rent_distribution

nonce_must_be_writable

optimize_epoch_boundary_updates

pico_inflation

prevent_calling_precompiles_as_programs

reduce_required_deploy_balance

reject_empty_instruction_without_program

reject_non_rent_exempt_vote_withdraws

reject_vote_account_close_unless_zero_credit_epoch

remove_native_loader

rent_for_sysvars

requestable_heap_size

require_custodian_for_locked_stake_authorize

require_rent_exempt_accounts

return_data_syscall_enabled

secp256k1_program_enabled

secp256k1_recover_syscall_enabled

send_to_tpu_vote_port

sol_log_data_syscall_enabled

spl_associated_token_account_v1_0_4

spl_token_v2_multisig_fix

spl_token_v2_self_transfer_fix

spl_token_v2_set_authority_fix

spl_token_v3_3_0_release

stake_merge_with_unmatched_credits_observed

stake_program_advance_activating_credits_observed

stake_program_v3

stake_program_v4

stakes_remove_delegation_if_inactive

system_transfer_zero_check

turbine_peers_shuffle

tx_wide_compute_cap

update_syscall_base_costs

verify_tx_signatures_len

versioned_tx_message_enabled

vote_stake_checked_instructions

vote_withdraw_authority_may_change_authorized_voter

warp_timestamp_again

Structs

FEATURE_NAMES

Map of feature identifiers to user-visible description

FULL_INFLATION_FEATURE_PAIRS

Set of feature pairs that once enabled will trigger full inflation

FeatureSet

FeatureSet holds the set of currently active/inactive runtime features

FullInflationFeaturePair

ID

Unique identifier of the current software’s feature set