@solana/kit

v8.1.0 (2026-08-27)

[@solana/errors, @solana/transaction-messages] #1972 7d56e29 Thanks @skyyycodes! - Validate compute unit limit and heap size when they are set on a transaction message
setTransactionMessageComputeUnitLimit, setTransactionMessageHeapSize and setTransactionMessageConfig now reject values the runtime will not honor as written, throwing SOLANA_ERROR__TRANSACTION__COMPUTE_UNIT_LIMIT_OUT_OF_RANGE or SOLANA_ERROR__TRANSACTION__INVALID_HEAP_SIZE at the point the value is set. An invalid heap size fails the transaction on-chain; a compute unit limit above the maximum is instead clamped down by the runtime, so the transaction quietly runs with a budget other than the one requested. A compute unit limit must be an integer in the range [0, 1,400,000]; a heap size must be an integer multiple of 1 KiB between 32 KiB and 256 KiB inclusive.
Decoding is unaffected: decompileTransactionMessage still returns messages carrying out-of-range values so that callers can inspect any transaction that reaches them.
[@solana/instruction-plans] #1995 95a2788 Thanks @mcintyre94! - Add createTransactionPlanExecutorWithConcurrentLeaves to concurrently transform every transaction plan leaf while preserving the plan's result shape.

[@solana/codecs-core] #1970 be30e32 Thanks @koriyoshi2041! - Fix toArrayBuffer slicing SharedArrayBuffer-backed views from a non-zero byte offset.
[@solana/codecs-data-structures] #1971 c51b9f6 Thanks @shin4141! - Preserve the literal fixedSize type for single-field fixed-size struct codecs.
[@solana/codecs-strings] #1979 6852054 Thanks @amilz! - Fixed getBase64Decoder() throwing RangeError: Maximum call stack size exceeded in browser builds when decoding byte arrays larger than roughly 65KB. The bytes are now converted to a binary string in chunks rather than spread into a single String.fromCharCode call.
[@solana/rpc, @solana/transaction-confirmation] #1994 490ac9e Thanks @matusbalascak! - Fix transaction confirmation and coalesced RPC request cancellation in environments where abort events have a null target.