1.8.0

  ### Added

  - [`value.reduce`](https://aiken-lang.github.io/stdlib/aiken/transaction/value.html#reduce) to efficiently fold over a value and its elements.

  - [`value.from_asset_list`](https://aiken-lang.github.io/stdlib/aiken/transaction/value.html#from_asset_list) to turn an asset list into a Value while enforcing invariants expected of `Value`.

  - [`math.is_sqrt`](https://aiken-lang.github.io/stdlib/aiken/math.html#is_sqrt) as a more efficient alternative to `sqrt`.

  ### Changed

  - Disclaimers in documentation to [`bytearray.to_string`](https://aiken-lang.github.io/stdlib/aiken/bytearray.html#to_string) and [`string.from_bytearray`](https://aiken-lang.github.io/stdlib/aiken/string.html#from_bytearray) regarding UTF-8 encoding.

  ### Removed

  N/A

1.7.0

  ### Added

  - [`list.index_of`](https://aiken-lang.github.io/stdlib/aiken/list.html#index_of): For getting a values index in a list.
  - [`transaction.placeholder`](https://aiken-lang.github.io/stdlib/aiken/transaction.html#placeholder): For constructing test transactions.
  - [`transaction.value.is_zero`](https://aiken-lang.github.io/stdlib/aiken/transaction/value.html#is_zero): For checking whether a value is null.

  ### Changed

  - [`value.to_minted_value`](https://aiken-lang.github.io/stdlib/aiken/transaction/value.html#to_minted_value) now correctly preserves the invariant of `MintedValue`: it always contain a null quantity of Ada.

  ### Removed

  N/A

1.6.0

  ### Added

  - [`math.pow2`](https://aiken-lang.github.io/stdlib/aiken/math.html#pow2): For faster exponentions for powers of two.
  - [`bytearray.test_bit`](https://aiken-lang.github.io/stdlib/aiken/bytearray.html#test_bit): For testing if a bit is set in a bytearray (MSB).

v1.4.0

  ### Changed

  - Fixed missing null-check on `value.add`. Adding a null quantity of token is now correctly a no-op.