# Changelog

All notable changes to this project will be documented in this file.

The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

## Unreleased

## [1.2.0] - 2025-10-27

### SECURITY
 - python: added `Decompressor::can_accept_more_data` method and optional
           `output_buffer_limit` argument `Decompressor::process`;
           that allows mitigation of unexpectedly large output;
           reported by Charles Chan (https://github.com/charleswhchan)

### Added
 - **decoder / encoder: added static initialization to reduce binary size**
 - python: allow limiting decoder output (see SECURITY section)
 - CLI: `brcat` alias; allow decoding concatenated brotli streams
 - kt: pure Kotlin decoder
 - cgo: support "raw" dictionaries
 - build: Bazel modules

### Removed
 - java: dropped `finalize()` for native entities

### Fixed
 - java: in `compress` pass correct length to native encoder

### Improved
 - build: install man pages
 - build: updated / fixed / refined Bazel buildfiles
 - encoder: faster encoding
 - cgo: link via pkg-config
 - python: modernize extension / allow multi-phase module initialization

### Changed
 - decoder / encoder: static tables use "small" model (allows 2GiB+ binaries)


## [1.1.0] - 2023-08-28

### Added
 - decoder: `BrotliDecoderAttachDictionary`
 - decoder: `BrotliDecoderOnFinish` callback behind `BROTLI_REPORTING`
 - decoder: `BrotliDecoderSetMetadataCallbacks`
 - encoder: `BrotliEncoderPrepareDictionary`,
            `BrotliEncoderDestroyPreparedDictionary`,
            `BrotliEncoderAttachPreparedDictionary`
 - decoder: `BrotliEncoderOnFinish` callback behind `BROTLI_REPORTING`
 - common: `BrotliSharedDictionaryCreateInstance`,
           `BrotliSharedDictionaryDestroyInstance`,
           `BrotliSharedDictionaryAttach`
 - CLI: `--dictionary` option
 - java: encoder wrapper: `Parameters.mode`
 - java: `Brotli{Input|Output}Stream.attachDictionary`
 - java: wrapper: partial byte array input
 - typescript: decoder (transpiled from Java)

### Removed
 - build: `BROTLI_BUILD_PORTABLE` option

### Fixed
 - java: JNI decoder failed sometimes on power of 2 payloads

### Improved
 - java / js: smaller decoder footprint
 - decoder: faster decoding
 - encoder: faster encoding
 - encoder: smaller stack frames


## [1.0.9] - 2020-08-27

Re-release of 1.0.8.


## [1.0.8] - 2020-08-27

### SECURITY
 - CVE-2020-8927: potential overflow when input chunk is >2GiB

### Added
 - encoder: `BROTLI_PARAM_STREAM_OFFSET`

### Improved
 - CLI: better reporting
 - CLI: workaround for "lying feof"
 - java: faster decoding
 - java: support "large window"
 - encoder: use less memory
 - release: filter sources for the tarball


## [1.0.7] - 2018-10-23

### Improved
 - decoder: faster decoding on ARM CPU


## [1.0.6] - 2018-09-13

### Fixed
 - build: AutoMake and CMake build
 - java: JDK 8<->9 incompatibility


## [1.0.5] - 2018-06-27

### Added
 - scripts: extraction of static dictionary from RFC

### Improved
 - encoder: better compression at quality 1
 - encoder: better compression with "large window"


## [1.0.4] - 2018-03-29

### Added
 - encoder: `BROTLI_PARAM_NPOSTFIX`, `BROTLI_PARAM_NDIRECT`
 - CLI: `--large_window` option

### Improved
 - encoder: better compression


## [1.0.3] - 2018-03-02

### Added
 - decoder: `BROTLI_DECODER_PARAM_LARGE_WINDOW` enum
 - encoder: `BROTLI_PARAM_LARGE_WINDOW` enum
 - java: `BrotliInputStream.setEager`

### Fixed
 - build: AutoMake build in some environments
 - encoder: fix one-shot q=10 1-byte input compression

### Improved
 - encoder: better font compression


## [1.0.2] - 2017-11-28

### Added
 - build: AutoMake
 - research: better dictionary generators


## [1.0.1] - 2017-09-22

### Changed
 - clarifications in `README.md`


## [1.0.0] - 2017-09-20

### Added
 - decoder: `BrotliDecoderSetParameter`
 - csharp: decoder (transpiled from Java)
 - java: JNI wrappers
 - javascript: decoder (transpiled from Java)
 - python: streaming decompression
 - research: dictionary generator

### Changed
 - CLI: rename `bro` to `brotli`

### Removed
 - decoder: `BrotliDecoderSetCustomDictionary`
 - encoder: `BrotliEncoderSetCustomDictionary`

### Improved
 - java: faster decoding
 - encoder: faster compression


## [0.6.0] - 2017-04-10

### Added
 - CLI: `--no-copy-stat option
 - java: pure java decoder
 - build: fuzzers
 - research: `brotlidump` tool to explore brotli streams
 - go: wrapper

### Removed
 - decoder: API with plain `Brotli` prefix

### Deprecated
 - encoder: `BrotliEncoderInputBlockSize`, `BrotliEncoderCopyInputToRingBuffer`,
            `BrotliEncoderWriteData`

### Improved
 - encoder: faster compression
 - encoder: denser compression
 - decoder: faster decompression
 - python: release GIL
 - python: use zero-copy API


## [0.5.2] - 2016-08-11

### Added
 - common: `BROTLI_BOOL`, `BROTLI_TRUE`, `BROTLI_FALSE`
 - decoder: API with `BrotliDecoder` prefix instead of plain `Brotli`
 - build: Bazel, CMake

### Deprecated
 - decoder: API with plain `Brotli` prefix

### Changed
 - boolean argument / result types are re-branded as `BROTLI_BOOL`

### Improved
 - build: reduced amount of warnings in various build environments
 - encoder: faster compression
 - encoder: lower memory usage


## [0.5.0] - 2016-06-15

### Added
 - common: library has been assembled from shared parts of decoder and encoder
 - encoder: C API

### Removed
 - encoder: C++ API


## [0.4.0] - 2016-06-14

### Added
 - encoder: faster compression modes (quality 0 and 1)
 - decoder: `BrotliGetErrorCode`, `BrotliErrorString` and
            `BROTLI_ERROR_CODES_LIST`

### Removed
 - decoder: deprecated streaming API (using `BrotliInput`)

### Fixed
 - decoder: possible pointer underflow

### Improved
 - encoder: faster compression


## [0.3.0] - 2015-12-22

### LICENSE
License have been upgraded to more permissive MIT.

### Added
 - CLI: `--window` option
 - `tools/version.h` file
 - decoder: low level streaming API
 - decoder: custom memory manager API

### Deprecated
 - decoder: streaming API using `BrotliInput` struct

### Fixed
 - decoder: processing of uncompressed blocks
 - encoder: possible division by zero

### Improved
 - encoder: faster decompression
 - build: more portable builds for various CPU architectures


## [0.2.0] - 2015-09-01

### Added
 - CLI: `--verbose` and `--repeat` options

### Fixed
 - decoder: processing of uncompressed blocks
 - encoder: block stitching on quality 10 / 11

### Improved
 - build: CI/CD integration
 - build: better test coverage
 - encoder: better compression of UTF-8 content
 - encoder: faster decompression


## [0.1.0] - 2015-08-11

Initial release.