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update CHANGELOG.md for 4.0.0 release

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Stephen Lombardo 2018-11-30 12:13:04 -05:00
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CHANGELOG.md
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# SQLCipher Change Log
All notable changes to this project will be documented in this file.
## [Unreleased][unreleased]
## [unreleased] - [unreleased]
## [4.0.0] - 2018-11-30
### Changed
- Default page size for databases increased to 4096 bytes (up from 1024) *
- Default PBKDF2 iterations increased to 256,000 (up from 64,000) *
- Default KDF algorithm is now PBKDF2-HMAC-SHA512 (from PBKDF2-HMAC-SHA1) *
- Default HMAC algorithm is now HMAC-SHA512 (from HMAC-SHA1) *
- PRAGMA cipher is now disabled and no longer supported (after multi-year deprecation) *
- PRAGMA rekey_cipher is now disabled and no longer supported *
- PRAGMA rekey_kdf_iter is now disabled and no longer supported *
- By default all memory allocated internally by SQLite before the memory is wiped before it is freed
- PRAGMA cipher_memory_security: allows full memory wiping to be disabled for performance when the feature is not required
- PRAGMA cipher_kdf_algorithm, cipher_default_kdf_algorithm to control KDF algorithm selection between PBKDF2-HMAC-SHA1, PBKDF2-HMAC-SHA256 and PBKDF2-HMAC-SHA512
- PRAGMA cipher_hmac_algorithm, cipher_default_hmac_algorithm to control HMAC algorithm selection between HMAC-SHA1, HMAC-SHA256 and PBKDF2-HMAC-SHA512
- Based on upstream SQLite 3.25.2
- When compiled with readline support, PRAGMA key and rekey lines will no longer be
saved to history
- Adds second optional parameter to sqlcipher_export to specify source database to
support bidirectional exports
- Fixes compatibility with LibreSSL 2.7.0+
- Fixes compatibility with OpenSSL 1.1.x
- Simplified and improved performance for PRAGMA cipher_migrate when migrating older database versions
- Refactoring of SQLCipher tests into separate files by test type
- PRAGMA cipher_plaintext_header_size and cipher_default_plaintext_header_size: allocates a portion of the database header which will not be encrypted to allow identification as a SQLite database
- PRAGMA cipher_salt: retrieve or set the salt value for the database
- Adds Podspec for using tagged versions of SQLCipher
- Define SQLCIPHER_PROFILE_USE_FOPEN for WinXP support
- Improved error handling for cryptographic providers
- Improved memory handling for PRAGMA commands that return values
- Improved version reporting to assist with identification of distribution
- Major rewrite and simplification of internal codec and pager extension
- Fixes compilation with --disable-amalgamation
- Removes sqlcipher.xcodeproj build support
## [3.4.2] - 2017-12-21
### Added
@ -88,7 +121,8 @@ All notable changes to this project will be documented in this file.
### Security
- Change KDF iteration length from 4,000 to 64,000
[unreleased]: https://github.com/sqlcipher/sqlcipher/compare/v3.4.2...prerelease
[unreleased]: https://github.com/sqlcipher/sqlcipher/compare/v4.0.0...prerelease
[4.0.0]: https://github.com/sqlcipher/sqlcipher/compare/v3.4.2...v4.0.0
[3.4.2]: https://github.com/sqlcipher/sqlcipher/compare/v3.4.1...v3.4.2
[3.4.1]: https://github.com/sqlcipher/sqlcipher/compare/v3.4.0...v3.4.1
[3.4.0]: https://github.com/sqlcipher/sqlcipher/compare/v3.3.1...v3.4.0