# Changes in 0.3.8:

* Add ShowMessageExt and ShowCodeExt traits, providing `.show{,_*}()` methods to get Debug and defmt::Format on traits.

# Changes in 0.3.7:

* Implement `defmt::Format` for `Error` (behind `defmt_0_3` feature).

# Changes in 0.3.6:

* Fix build failure in release mode without feature `error_title`.

# Changes in 0.3.5:

* Update Problem Details renderer to write title into messages that support `promote_to_mutable_writable_message`.
* error: A `bad_option(UriPath)` is rendered as 4.04 Not Found.
* Update Rust version to 1.79.
* Documentation updates.

# Changes in 0.3.4:

* Remove needless heapless dependency left over from earlier iterations of the crate.
* Update README.

# Changes in 0.3.3:

* Add builder to Error: `with_title`

# Changes in 0.3.2:

* Add new constructors to Error:
  `unauthorized`, `forbidden`

# Changes in 0.3.1

* Add new constructors to Error:
  `not_acceptable`, `unsupported-content_format`, `from_unionerror`

* Fix insufficiently versioned dependency to coap-numbers

# Changes in 0.3.0

*This is a breaking change relative to alpha.1*

* OptionsExt:
  Use return-position-impl-trait-in-trait, removing the `nontrivial_option_processing` feature.
  This makes the return types unnamable until type-alias-impl-trait is stabilized.

* Moved the almost all of the crate that imlements coap-message into the new coap-message-implementations crate.

* Moved in types and traits of coap-handler-implementations

  - the `Error` type, incompatibly replacing InternalServerError.

    An `.internal_server_error()` constructor is added to make up for it.

  - all option iteration related triaits and types: `OptionsExt`, `TryFromOption` and all block types

# Changes in 0.3.0-alpha.1

* Switched to coap-message 0.3.0-alpha.1 and its fallible writing;
  this adds the WriteError type that expresses the cause.

* Introduced InternalServerError 

* Intorduced a `reset()` method on the writable message as a stopgap measure
  until rewindable message traits are available.