Breaking changes

The read_bytes helper, deprecated since 0.2.0, has been removed. Use Vec<u8> directly.
The NullString and NullWideString APIs have been rewritten to use only standard Rust traits:

before 0.10 as of 0.10

T::from_string(s) From<String> or From<&str>

s.into_string() s.to_string() or Display trait

s.into_string_lossless() TryFrom<T> for String trait
Two BinWrite API functions have been renamed for consistency with the BinRead API:

before 0.10 as of 0.10

BinWrite::write_to(...) BinWrite::write(...)

BinWrite::write_with_args(...) BinWrite::write_args(...)
The HasMagic trait has been renamed to meta::ReadMagic.
The Endian::Native variant has been removed and replaced by an equivalent constant, Endian::NATIVE.
The Default implementation for Endian has been removed. Use an explicit value where needed instead.
Convenience functions that do not accept a byte order (e.g. BinRead::read(...), BinWrite::write(...)) are now only callable if the underlying type also implements meta::ReadEndian (for reads) and meta::WriteEndian (for writes). This prevents unintentional architecture-specific byte ordering. These new traits are automatically derived for types that specify a byte order and for built-in types that do not have any endianness (e.g. Vec<u8>).

before 0.10	as of 0.10
`BinWrite::write_to(...)`	`BinWrite::write(...)`
`BinWrite::write_with_args(...)`	`BinWrite::write_args(...)`

New features

The BufReader wrapper significantly improves performance when reading from non-memory streams (#141)
The NoSeek wrapper enables reading and writing non-seekable streams (#6, #78)
Non-zero integer types are now supported by BinRead, BinWrite, and FilePtr (#134)
Added performance tips to the documentation (#130)

binread, binrw, and binwrite attributes are now also part of the binrw prelude
Improved performance reading integer primitives into collections (e.g. Vec<u32>) (#129)
The if directive is now also supported in #[bw] attributes (#113, #146)
Tuples can now use any args type that implements Clone
Error messages are now clearer when count and args are incorrectly combined, or when passing the wrong type to args (#112)
More impls have been added to the no_std implementations of the Read and Write traits to improve feature parity with the std implementations
The Debug implementations of NullString and NullWideString no longer allocate memory
Documentation has been generally improved (#75, #76, #103, #142)
Write support is now fully documented
Enum error handling modes are now documented
Explicit endian helper functions are now also available on BinRead and BinWrite

Using try_map = {closure} on a struct now generates valid code
Errors in args directives now point to the correct location of the problem
The optimised impl BinWrite for Box<[u8]> is now actually selected by the compiler
Using named arguments no longer triggers clippy warnings about missing docs (#124)
Trailing commas no longer cause parsing errors in binrw::args!
NullString and WideNullString types are now correctly marked with Eq
Enum variants no longer sometimes unintentionally inherit directives from the parent enum
Deriving BinWrite on unit structs no longer causes a panic
pre_assert directives now correctly apply to unit enum values
Line numbers in verbose backtraces are now correctly padded when the number of digits in the line number increases