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# View Source TFTP Release Notes

## Tftp 1.2

### Improvements and New Features

- There is a new `tftp_logger` callback behavior module.

  Own Id: OTP-18787 Aux Id: PR-7700

- The documentation has been migrated to use Markdown and ExDoc.

  Own Id: OTP-18955 Aux Id: PR-8026

## Tftp 1.1.1

### Fixed Bugs and Malfunctions

- Replaced unintentional Erlang Public License 1.1 headers in some files with the intended Apache License 2.0 header.

  Own Id: OTP-18815 Aux Id: PR-7780

## Tftp 1.1

### Improvements and New Features

- The implementation has been fixed to use `proc_lib:init_fail/2,3` where appropriate, instead of `proc_lib:init_ack/1,2`.

  * POTENTIAL INCOMPATIBILITY *

  Own Id: OTP-18490 Aux Id: OTP-18471, GH-6339, PR-6843

## Tftp 1.0.4

### Improvements and New Features

- Replace size/1 with either tuple_size/1 or byte_size/1

  The `size/1` BIF is not optimized by the JIT, and its use can result in worse types for Dialyzer.

  When one knows that the value being tested must be a tuple, `tuple_size/1` should always be preferred.

  When one knows that the value being tested must be a binary, `byte_size/1` should be preferred. However, `byte_size/1` also accepts a bitstring (rounding up size to a whole number of bytes), so one must make sure that the call to `byte_size/` is preceded by a call to `is_binary/1` to ensure that bitstrings are rejected. Note that the compiler removes redundant calls to `is_binary/1`, so if one is not sure whether previous code had made sure that the argument is a binary, it does not harm to add an `is_binary/1` test immediately before the call to `byte_size/1`.

  Own Id: OTP-18432 Aux Id: GH-6672,PR-6793,PR-6784,PR-6787,PR-6785,PR-6682,PR-6800,PR-6797,PR-6798,PR-6799,PR-6796,PR-6813,PR-6671,PR-6673,PR-6684,PR-6694,GH-6677,PR-6696,PR-6670,PR-6674

## Tftp 1.0.3

### Fixed Bugs and Malfunctions

- Missing runtime dependencies has been added to this application.

  Own Id: OTP-17243 Aux Id: PR-4557

## Tftp 1.0.2

### Improvements and New Features

- Removed compiler warnings.

  Own Id: OTP-16317 Aux Id: OTP-16183

## Tftp 1.0.1

### Fixed Bugs and Malfunctions

- Improved documentation.

  Own Id: OTP-15190

## TFTP 1.0

### First released version

- Inets application was split into multiple smaller protocol specific applications. The TFTP application is a standalone TFTP client and server with the same functionality as TFTP in Inets.

  Own Id: OTP-14113

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